1. carbon dioxide
Humans breathe out CARBON DIOXIDE and water vapor. CARBON DIOXIDE also causes the bubbles you see in carbonated drinks.
carbon dioxide: a gas made or carbon and oxygen atoms that plants need for photosynthesis

2. conservation: the wise use and protection of natural resources

3. consumer: an organism that gets energy by eating other organisms
The Honey Badger is a CONSUMER known to eat over didifferent species of organisms, including venomous snakes!
consumer: an organism that gets energy by eating other organisms

4. ecosystem
Pond Ecosystem
Desert Ecosystem
ecosystem: all the living and nonliving things that interact with each other in an environment

5. food web
food web: overlapping food chains with different pathways for the flow of food energy in an ecosystem

6. fossil fuel
Fossil fuels—coal, oil, and natural gas– formed over millions of years, but are being used up much more quickly
Once a source of oil is found deep underground, a large hole is drilled and pumps like this pull oil to the surface.
fossil fuel: a fuel that formed from the decayed remains of ancient plants and animals

7. natural resource
natural resource: resource that is used by humans, such as a mineral, water, fossil fuels, or a food source

8. nonrenewable resource
Fossil fuels like coal, oil, and natural gas are considered NONRENEWABLE RESOURCES because it would take millions of years for them to form again in nature.
nonrenewable resource: resource that nature cannot replace quickly enough to meet people’s needs

9. producer: an organism that makes its own food

10. renewable resource: a resource that nature produces again and again
sources of
renewable
energy
renewable resource: a resource that nature produces again and again