Tuesday, January 5, 2010

Week #15 April 19-25

Please use this space to share your reflections of our learnings this week. What are the concepts that we discussed? What are the important vocabulary words that you learned? Are there any topics that we have covered that you are still unsure of?

70 comments:

  1. This week I learned that if you put an animal in a place with no predators, a lot of food they animal population with increase a lot and then decrease because the island can not create enough food for the all of the animals. because there are no predators the animal will be able to have three babies and they will all live because no animal will eat it.

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  2. I have learned this week that the more of a food for an animal there is, the more of that animal will be. i found lab this week was very boring. i am looking forward to the biomass lab

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  3. This week we learned about how different animals in an ecosystem affect one another. In lab our example was without grass and other animals hawks couldn't live in the ecosystem. In lab we also calculated how much of different animals our school could support based on how much grass the school had. The school wasn't able to support one hawk.

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  4. This week I have learned that if you put an animal in a habitat with no predators but plenty of food that the species number goes way up. Also that a coal fired power plant can decrease reproduction of fish because if the waters warm they think that its summer and too late to reproduce.

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  5. This week we learned about the effects of the ecosystems. If you put one animal in a habitat with no predators, it's population will go up alot. And in the lab, we figured out that the amount grass affects the amount of grasshoppers, snakes, and hawks, and so on.

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  6. this we I learnd that if anamail does not have predors to eat them, that kind will over poplated and eat all the food that they need to suved. one of many things that aprombl is that the coal fird power plant can decrease reprodutction of the fish becuse of the chemal thats in the water. in lab, I figher out that amout of gress effects taht amount of anials that live in that place.

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  7. This week we learned the effects of animals on the ecosystems. If an animal is taken out of the ecosystem, the animals involved with it (either eaten by it, or is eating it) will be impacted, sometimes severely. In lab we looked at carrying capacity and how it affects other animals and environments.

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  8. This week in science class we learned about how we have an effect on other environments. We also learned about limiting factors and how they can restrict a population. For example in lab we found out how many blades of grass are in an area and that led to grasshopers to birds to snakes and finally to hawks. All of these things had a limiting factor to them. This week I also learned that by developing more and more land we are creating a huge limiting factor for animals.

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  9. this week we learned how animals servive and what happens if there are to many preditors. also, what happens when there are to many animals that need the same food.

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  10. This week we learned about how animals affect the other animals and such in an ecosystem. In lab we counted grass to find out how many grasshoppers, shrews, snakes, and hawks could live in that area. All the developing and wastes of humans have pretty bad affects on animals. In the movie today it showed how a fungus is killing off frogs, medications down a toliet cause the frogs deformalities, and the developing of houses takes away their habitat.

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  11. This week we learned about carrying capacity, or how many organisms an area can hold and have them prosper. If you put animals on an island without any predators they will prosper, but once there is so many of them there won't be enough food or room for all of them, so they will slowly die off. We also saw how we are affecting frogs and how they are dying off because of a disease on their skin the makes it hard for them to breath. Certain medications can also cause the frogs to have deformities. There are people who take the frogs to a house and put them in their own habitat so that they can start to reproduce and so they can find cures to diseases that are killing the frogs.

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  12. This week we learned about dissolved oxygen levels in water and how temperature can affect those levels. We learned about how each individual animal is important to the food chain and ecosystem. We learned about how if one animal is taken out of the system it can disrupt the entire natural workings of the ecosystem. We learned about carrying capictiy of land and how it affects animals and the food chain of the land.

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  13. This week in class, I learned about carrying capacity, which is the amount of organisms and area can support based on bitoic and abiotic factors. For example, in lab, we counted blades of grass, then did factor labeling to find how many differnet kinds of organisms could survive in that area. I also learned that as humans develop more, we are limiting animal life, such as the frogs in many parts of the world.

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  14. Last Friday in science class we watched a movie that explained how frogs around the world are becoming closer and closer to becoming extinct. Many species have been lost, and if humans do not do anything to help protect these endangered animals they could be lost forever. Frogs are important because they have been found to contain certain chemicals that could help the advancements of medicines including pain killers. Frogs are also found in the center of the food chain. If frogs die out other species are sure to become endangered if not extinct as well.

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  15. This week we learned about the effects of animals have on the ecosystems. If an animal is taken out of the ecosystem, the animals involved with it will be impacted, sometimes severely. In lab we looked at carrying capacity and how it affects other animals and environments. On friday we watched a cool movie on frogs.

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  16. This week in class we learned about the ecosystem and the important role that certain animals play in it. If one animal is taken out of the system or manipulated, then that effects the other animals which rely on that missing animal. This can throw off the perfectly balanced system and can cause severe damage. In lab, we learned about the carrying capacity and how it too, effects other animals and enviornments.

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  17. This week in science class, we learned about ecosystems and how they have limiting factors and carrying capacities. Limiting factors are biotic and abiotic things that determine what can continue to live in an ecosystem. An ecosystem has to have good living conditions for the certain organisms that live there or else the population will decrease. These factors affect the carrying capacity, the biggest number of organisms that a certain area can have. In lab we tested this by counting grass in little areas and then finding how many grasshoppers, snakes, and hawks could live there.On Friday, we watched a video about frogs and how they are becoming endangered. We learned that frogs have brightly colored skin to avoid predators and the skin is also good for medical purposes. The frogs are being affected by pollution in the water and if the frogs become extinct it will mess up the entire food chain.

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  18. This week in class we learned about the many different ecosystems and how they survive, and what they survive off of. In lab, we counted blades of grass to see how many grasshoppers our ecosystem could support. Then to see how many shrews would be supported by the grasshoppers, how many snakes would be supported by the shrews, and then how many hawks would be supported by the snakes. In most cases, we couldn't even support one hawk. But you really didn't think about the changes that could happen until we watched part of the movie on Friday, that really put everything into perspective. It showed me how our activity is causing a once plentiful species to go extinct, which in turn, can cause many other creatures to start dying as well.

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  19. This week in class we learned about dissolved oxygen levels and the different temperatures and how that effects animals. In lab we learned about carrying capacity and the effects that has on ecosystems. Carrying capacity is the maximum amount of organisms that a certain area can support. So we did an experiment using data to see how a big space and a small space would effect the carrying capacity.

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  20. This week in class we relearned the mixed forms of acid rains, SOX NOX CO2 and CO. we also learned what carrying capacity is, we defined it is the most amount a certain amount of space an area can support a living organism. In lab we counted grass. haha well there is more to it then just that, we actually found how much different living organisms could occupy the amount of space at Arapahoe high school, such as grass hoppers, and hawks. Then on friday we watched a movie about how the number of frogs are decreasing and there was many different affects happening by the deadly diseases around, not only in Panama but also in the US!!!

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  21. This week in class we learned about the relationship between dissolved oxygen and the temperature of water. As the water heated, less oxygen was able to dissolve and so their was a lower percentage of dissolved oxygen in the water. In lab, we learned about carry capacity, which is how many of a specific species an area can support indefinately. We did this by counting a square of grass and then multiplying it, then using factor labeling to figure out how many grasshoppers, shrews, snakes and hawks the area at Arapahoe high school could support. On Friday, we watched a video about how frogs are dying from a fungus that attaches to their skin and prevents them from breathing. Since frogs breathe through their skin, this virus is causing entire populations of frogs to die out. Scientists are studying the causes and hope find a way to prevent the fungus from killing more frogs.

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  22. This week in class we learned about carring capacity. Carring Capacity is the amount of organisms that a certain ecosystem can provide for. We learned about human activitys that can mess up the way the ecosystem works. Coal fired power plants that use water to cool down steam affect fish in the river. The water that cools the steam changes the temperature of the water and then the fish dont know when to reproduce. We also learned how amphibians are dissapearing because we are taking where they live.

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  23. This week we learned about carrying capacity and litmiting factors and that human activities can change the ecosystem. We also learned about another type of pollution which is thermal pollution. Also we watched a movie about frogs and how they are dying off.

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  24. This week I learned about carring capacity. It was very interesting becasue I leanred that if you keep animals in an area with no predators than for a period of time the population of said animal will incerase dramaticly as seen on the graph we made in class for the deer. But the ecosystem can only hold so many animals. so the population will starve to death. this made me realize that an ecosystem can only hold so many people... will this effect over populated areas like Asia? do we have enough recourses? sooner or later we'll find out..

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  25. This week I learned about carrying capacity. It is the number of animals one area can carry and support. we also learned about frogs dieing all around the world from a fungus that prevents the frogs from breathing. We also learned about the relationship between temperature of water and the disolved oxgen in that water.

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  26. This week, I learned about carrying capacity. Carrying capacity is how many organisms can survive in a specific environment with a specific amount of food and predators. This also can relate to the overpopulation of the planet. How many people can possibly survive in one area? Will New York City slowly decline into a ghost town due to it's growing population of 8,000,000+?

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  27. This week in class we learned about carry capacity. If you keep animals in a certain area with no predators and plenty of resources the population will thrive. But eventually it will go down because of lack resources and space. It made me wonder what’s going to happen to humans since our population is increasing. We also learned how frogs have been in earth for 250 million year but now their population is decreasing; partly because their habitat is decreasing; but mostly because of fungus that is killing. We have yet to find out where this fungus is coming from and how to prevent it from it from spreading. Overall this was a pretty interesting week.

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  28. After watching that movie on Friday about frogs and how changes can affect them and their habbitat, I really learned a lot because it was a visual. Seeing that movie makes me worry about what is in our water and makes me want to improve it all the more. Hoping something can be done and that frogs will not disappear, hopefully the rain forests can be noisy again. That terrible disease and female hormone can affect a lot and us.

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  29. Watching the frog movie made me think that humans are to self centered. Like other things out there have lives and families too and were just destroying that for them. Were making life easier for present time for us right now, but in 40 years things will be hard on us becasue were not stoping what were doing to the enviorment. More extinctions, less food, polution, fossil fuels, energy are just some factors that will fail if we dont stop.

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  30. This week, we out a lot of emphasis was on the carrying capacity of an environment. We talked about the effects on an environment if an animal is taken out of the food chain or if the animal population increases. On Friday we watched a video about frogs, and their impact on an environment.

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  31. this week in class we learned about carrying capacity. we watched a movie on frogs and i really learned alot. i learned more about how important the food chain is and that when one aimal is missing from it, it creates a whloe bunch of problems in the chain.

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  32. This week we learned that living organisms need many factors in order to survive and thrive in an ecosystem. We figured out that if the whole grounds of Arapahoe High School were completely covered in grass it could not support a hawk. Although an organism might not have any predators like the reindeer on that island in Alaska eventually they will over populate the area in which they live. This will destroy that ecosystem and leave it uninhabitable, while the population will eventually die out.

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  33. This weekin lab we learned about a enviroments capaciry size and the food chain and how critical it is to every thing. Also animals need other animals to support eachother. If you take one organism out many others will be effected by it.

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  34. This week we mainly focused on the food chain. In lab we did an experiment figuring out whether certain organisms would survive based on a certain number of grass. We also learned this week that organisms depend on each other and if one goes extinct the others will too.

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  35. This week I learned a lot about how animals can survive if another organism is taken out of their food chain. I learned that they most likely will not survive because they depend on each other to live. We also learned about carrying capacity, which is meaning how much a space can hold. If you put too many animals in too small of an environment they will run out of food. I also learned a lot of how animals are effected if their environment is changed and contaminated.

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  36. This week I learned about DO levels in rivers and how it effects temperature. As the amount of DO in a river decreases, temperature increases. In lab, we counted blades of grass in a small square and figured out the amount of organisms of certain species that could live there. Overall, if all of arapahoe was covered in grass, not even one hawk would be able to live off of the species that lived there.

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  37. This week we atlked about caring capacity and dissolved oxygen. Caring capacity is the max amount of organisms that can live in a certain ecosystem. Dissolved oxygen is oxygen that is dissolved in water, we also learned how the relationship between DO and water temperature is inverse. I understood everything this week

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  38. This week i learned that Carrying Capacity is the maximum amount of organisms a curtain area can support. I also learned that a lot of frogs are dieing in the world to But i also learned is that curtain frogs hold the key to us possably creating more medicines and pain killers. Like one frogs skin is toxic and it barely feels pain and it is like 10 times stronger and healthier than morphine.

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  39. This week we learned about how ecosystems and their carrying capacity. We learned that there needs to be a certain amount of both biotic and abiotic factors in an ecosystem in order for it to be able to support life. We also learned about the effects of contaminants in our water and what happens when humans mess with the natural balance of an ecosystem.

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  40. This week we learned about ecosystems and how they can be effected when an animal in the food chain dies, especailly frogs. The video we watched was interesting and helped me learn more about the problems humans are causing. The lab this week was hard and long. I am excited for the biomass one this week.

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  41. This week we talked about different animals and how they interact with their ecosystems. This tied in with our lab because in lab we tested the ecosystem of Arapahoe to see if it could support specific animals. On Friday we also watched a very cool video on amphibians and how their habbitats are being destroyed. I do not have any questions.

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  42. This week in class, I learned about carrying capacity, which is the amount of organisms an ecosystem can support based on bitoic and abiotic factors. For example, in lab, we found how many differnet kinds of organisms could survive in the area of the school. I also learned that as humans develop more, we are limiting animal life, such as the frogs in many parts of the world.

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  43. In Science this week I learned about carrying capacity, which is the amount of organisms and area can support based on bitoic and abiotic factors. For example, in lab we counted blades of grass then did factor labeling to find out how many different kinds of organisms could survive in that area. I also learned that as humans develop more we are limiting the animal life in areas of the world.such as the frogs in many parts of the world. I learned that from the movie on Friday. I found the movie very interesting.

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  44. This week we learned about carrying capacity, and how the population of animals fluctuates depending on amount of food and space.

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  45. In Science this week we learned about animals.And how they can survive if there is a certain organism taken out of the cycle.We also watched a video about frogs and i did not realize how many chemicals are being dumped into the rivers and oceans and ponds. Which is having an effect on frogs and they reproduce. How males will be turned into females or the complete opposite.

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  46. This week we learned about carrying capacity which is the amount of organisms that can be supported by an ecosystem. In lab we tried to figure out the carrying capacity if Arapahoe was just a large area of land by counting grass and factor labeling. On Friday we watched a movie on frogs and their decreasing population. We saw the impact that frogs have on the environment and what could happen if they were gone.

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  47. This week we learned about Carrying Capacity. The maximum amount of species of animals that can be in an ecosystem. We learned that there needs to be a certain amount of both biotic and biotic factors in an ecosystem in order for species of animals to survive. As well we learned about DO levels in rivers and how it affects the water temperature.

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  48. We learned about carrying capacity as well as the relationship between dissolved oxygen levels and thermal pollution this week. Carrying capacity is the number of organisms an ecosystem can support based on biotic and abiotic factors.We demonstrated carrying capacity by calculating the approximate number of organisms that could live on the land that Arapahoe occupies. Also, we discovered that as temperature increases, dissolved oxygen level decreases.

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  49. This week we learned about how organisms help eachother and other organisms in an enviroment survive. In lab we learned that each organism uses each other to live. We also learned about the dissolved oxygen levels in our water and on friday we watched a video on how we are killing frogs and other organisms and how its effecting the entire ecosystem.

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  50. This week one thing that i really thought was really fun this week was watching the video one the frogs. I thought it was really interesting watching the video and also sad how the frogs arew losing population and habitat space really fast. Also we learned how organisms all depend on eachother in order to keep everything in place, and if one thing misses its job then the whole system goes down.

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  51. This week we learned that living organisms need many things in order to survive in an ecosystem. We figured out that if the whole grounds of Arapahoe High School were completely covered in grass it could not support a hawk. Although an organism might not have any predators like the reindeer on that island in Alaska eventually they will over populate the area in which they live. This will destroy that ecosystem and leave it uninhabitable, while the population will eventually die out.

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  52. I learned that We are creating and killing the amphibians in our world. We are creating so much damage to our earth and the other creatures that we share the Earth with. We should do more to contribute in helping nature. The movie from Friday taught me alot and was pretty interesting.

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  53. I learned this week how an ecosystem all depends on the amount of producers in it. If there are no producers in the area, there is nothing to sustain the primary consumers, thus dieing off. Then, if there are no primary consumers, there is nothing to provide the secondary consumers with, since most are only carnivores. And so on in the food chain. There are alot of problems with an ecosystem if there is no grass or plants. But if there is more, then there will be more life in it. I also learned that we are one of the main causes of the endangerment of froggies. I am glad some people are doing something about them, and helping protect them.

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  54. This week we learned that we are killing off one of the most important and oldest creatures that this earth holds. We learned that once the frogs are completely extinct that other animal species will die off. We are also finding poisons on the frogs that can cure many diseases.

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  55. The week in review, I begun to learn about dissolved oxygen in water. As the temperature of the water increases, amount of dissolved oxygen decreases. This phenomenon impairs the ability for fish to take the oxygen from the water and use it. This also could potentially create a gap in the food chain, which we learned is dangerous.

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  56. This week in class we learned about how the acosystem depends on how many producers are in it. we also learned about frogs and how they are startiing to die of because of a disease called kitred

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  57. On Friday we watched a movie about how we are killing frogs from taking there habitat and the fungus killing them off. Once they die the predators that feed off of them will die off also.

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  58. This week we learned about the relationship between the temperature of water and dissolved oxygen. The hotter the water is, the less dissolved oxygen there is. This means that due to thermal pollution from factories on water,fish have less air to breathe. Thermal pollution has the ability to destroy fish populations.

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  59. This week in lab we counted grass and learned about the habitats about different animals and the copasitie in witch the habitat can hold. Also we learned about dissolved oxygen. Then on friday we watched a movie on how frogs are being endangered because aof a disease that is spreading quickly and cannot be stopped.

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  60. This week in science we learned about carrying capacity. This is how many organisms a enviorment can support. We also learned about how one species of animal can screw up the whole food chain. We watched a video on frogs and the problems with them goin exctinct, and how humans and a deadly virus are killing them off very quickly.

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  61. This week we learned about the carrying capasity of an environment. There is only so much food in an area that can support a certan type of animal. For example, this weeks lab had a certan amount of food supported a certan orginism, 500 blades of grass per grasshopper as an example. So in the end it really took 750 million blades of grass to support a hawk, once it had passed through all of the animals. This shows human development can cause the death of a species, even though these numbers are unrealistic it still gets the point across.

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  62. This week we learned about carrying capaity of an enviornment. Carrying capasity is almost the same as thresh hold value in it being how much something can hold. We also learned how our actions as humans can cause many bad effects as it showed on the movie friday.

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  63. This week in lab I learned that you need so many pieces of food in order to be able to feed an entire ecosystem. I also learned that on the arapahoe grounds we would be unable to sustane the life of a hawk.

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  64. This week we learned about the amount of animals an ecosystem can have. This is carrying capacity. We also learned about frogs dying and becoming diseased because of our carbon footprint.

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  65. This week in lab we learned about the new consept of carrying capacity. Carrying capacity is the amount of animals an ecosystem can support.But I am confused why frogs are dying.

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  66. this week we learned about eco systems and carrying capacity. Carrying capacity is the amount of organisms an eco system can support based on the amount of food and other factors the eco system provides. We also learned about a disease that is killing many of the frogs through out the world.

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  67. This week we learned about how when one animal is removed from the food chain everything else including the environment is affected. Also, we learned about the carrying capacity and the mazimum number of living organisims that can live in a certain area and be supported.

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  68. This comment has been removed by the author.

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  69. This week we learned about a habitat's maximum carrying capacity, and the factors that affect it such as predators, resources, and diversity. Second, during lab we learned just how many producers are needed to support 1 predator. Also, on Friday we learned about a fungus that is affecting frogs worldwide.

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  70. We ended the week with a video about frogs and their affects on all the different ecosystems around them.Frogs have been around since before the dinosaurs. Their skin and the poison that they can release are some adaptions that frogs have made to avoid predators. Frogs use organs such as longs and gills to help them breathe as well as drink. Ares everywhere around the world have witnessed a large die-off of the amphibian population. Studies show that within 10 years, Panama will lose its frog population.

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