click below
click below
Normal Size Small Size show me how
GSLS
4th Grade Earth's Resources
Question | Answer |
---|---|
Molten | Melted Rock |
Igneous Rock | Rocks that have formed from magma or lava |
Sedimentary Rock | Layers of rock pieces that pile on top of each other and over time become solid. |
Metamorphic Rock | Rocks that move back under the earth's surface where heat and pressure change them into different rocks |
Soil | Mixture of several materials, including sand, clay, rock, water, fungi, bacteria and decayed plants and animal material |
Topsoil | The top layer of soil. |
Soil Conservation | Measures used to protect soil from erosion |
Renewable resources | Resources that can be replaced by natural processes |
Non-Renewable resources | Resources that cannot be replaced or renewed once used |
Atmosphere | Blanket of air that surrounds the earth |
Ultraviolet Radiation | Radiation rays given off by the sun that can be harmful to living things |
Petroleum | Another name for oil |
Conserve | Using less of a resource to protect it |
Recycle | Reusing a resource to help protect it |
Fossil fuels | Coal, oil and natural gas comes from the remains of ancient living things |
Gold and Iron ore are examples of | Minerals |
Examples of Non Renewable Resources | Minerals and Fossil Fuels |
Examples of Renewable Resources | Trees, Wildlife, Fresh Water and Air |