| A | B |
|---|
| Environmental Science | The study of how humans interact with the environment. |
| Environment | Everything that surrounds us. |
| Natural Resource | Any natural substance that living things use. |
| Natural Resource | Sunlight, air, water, soil. |
| Nonrenewable resources | Resources that cannot be replaced. |
| Nonrenewable resources | Fossil fuels |
| Renewable resources | Resources that are continually being replaced. |
| Renewable resources | Sunlight, trees. |
| Biosphere | The thin layer of life around the Earth. |
| Developed countries | Highly industrialized countries whose citizens have high average incomes. |
| Developed countries | United State, Canada, Japan, Australia. |
| Developing countries | Citizens have a much lower average income. |
| Developing countries | India, Kenya, Mexico, Malaysia |
| Population crisis | The number of people growing to quickly for the Earth to support. |
| Consumption crisis | People using up, wasting, or polluting natural resources faster than they can be renewed, replaced, or cleaned up. |
| Sustainable world | A world in which human populations can continue to exist indefinitely with a high standard of living and health. |
| Pure science | Tries to answers questions about how the natural world works. |
| Applied science | Uses the information provided by pure science to solve problems. |
| Ecology | The study of how living things are related to each other. |
| Hypothesis | A scientist's prediction of what the correct answer will be to a problem. |
| Experiment | Used to test a hypothesis |
