Science+and+The+Environment+Part+3

1. What are the two ways ecosystems experience changes? __ Ecosystems can experience slow and rapid changes. __ 2. What are some examples of how natural weather disasters can cause rapid changes? __hurricanes, tornadoes,thunderstorms, fires.__ 3. What is erosion? __Erosion__ is when the surface of the earth is worn away. 4. What affects the ecosystem more than any other living thing? __Humans__ 5. What are some ways humans affect the environment? 1__. They cut down forests__. 2. __They use chemicals in the wrong way, sometimes causing oil spills which can harm fish.__ 3. __They burn fuels that can damage the earth's atmosphere. This causes the Greenhouse effect.__ 6. What are two types of resources in the environment? They are __renewable and nonrenewable resources__. 7. __Renewable resources__ can be replenished by natural processes. Example of renewable resources are __plants, water, oxygen__. 8. __Nonrenewable resources__ cannot be replaced in a reasonable time. Examples of nonrenewable resources __are metals and petroleum products__. 9. __Conserve__ means to use things in small amounts or to protect things. 10. __Endangered__ means a living thing is in danger of dying out. There are few of them left. 11. The burning of fossil fuels like oil and coal cause greenouse gases to escape into the air and these gases are causing warming of the earth. This effect is called __the Greenhouse Effect__. 12. Give an example of how animals can be affected by rapid changes to their Environment__. The Louisiana Black Bear is an example of an animal on the endangered species list due to changes made in the ecosystem.__ 13. What is causing global warming and the Greenhouse Effect? __ The burning of fossil fuels like oil and coal cause greenhouse gases to escape into the air. Another cause is deforestation (cutting down trees). Trees soak up carbon dioxide __.
 * Science and the Environment Part 3**
 * Lesson Plan [[file:LP-Science and the Envirnment Part 3 of 4.doc]] || [[file:Science and the Environment Part 3 of 4 Study Guide.doc]] || [[file:Science and the Environment Part 3.ppt]] || [[file:Science and the Environment Part 3 of 4 Test.doc]] ||
 * || [[file:science_environment_3_vm_sg.doc]] ||  ||   ||