Science and the Environment Part 3. 1.What are the two ways ecosystems experience changes? Ecosystems can experience slow and rapid changes.

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Presentation transcript:

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? How might these natural disasters cause damage to ecosystems? * hurricanes, tornadoes, thunderstorms, fires *Plants and animals can die and wind and waves can cause erosion to land.

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? Other rapid changes to ecosystems are caused by humans. People affect Earth’s ecosystems more than any other living thing does.

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 Green house Effect.

6. What are the two types of resources in an environment? They are renewable resources and nonrenewable resources. Renewable nonrenewable

What is a renewable resource? Renewable resources can be replenished by natural processes. Examples are plants, water, oxygen

8.What is a nonrenewable resources? Nonrenewable resources are resources that cannot be replaced in a reasonable time. Sometimes they cannot be replaced at all. Most of these resources come out of the ground. Examples: Metals and petroleum products

What are some examples of items we use everyday made from renewable and nonrenewable resources? Examples: Paper products, glass, plastic, gasoline

9. What does conserve mean? Conserve means to use things in small amounts.

Why is it important to conserve the resources we have? It is important that we conserve the resources we have. If we do not conserve our resources then we could have a shortage of resources or even run out completely!

9. What does endangered mean? Endangered means that a living thing is in danger of dying out. There are few of them left. 12.Example: The Louisiana Black Bear It is on the endangered species list due to changes in the ecosystem.

13.What is Global Warming or The Green House Effect? The burning of fossil fuels like oil and coal cause greenhouse gases to escape into the air and that these gases are causing warming of the Earth. Another cause is deforestation (cutting down trees). Trees soak up carbon dioxide, one of the greenhouse gases, from the air. If the warming gets worse, as scientists expect, there may be some kinds of plants and animals that become extinct (disappear completely) because they can’t move to new homes. There may be more storms and floods. Sea level may rise so much that people have to move away from the coasts. Some areas may become too dry for farming. echange/kids/green house.html Visit this website for a more thorough explanation!

Review Natural Disasters: Sometimes bad things happen Humans and the Environment Weathering and Erosion E-5A77-4B36-BFA9-1D307F75441C People and the Environment E996-65EF-41CA-9B32-4BB2739AC5E9 Renewable and Non renewable Resources A6-C2A6-40DE E62BE406ECB Natural Resources