1. |
litter | The first 4 to 10 inches of soil. It contains the most humus and is usually a dark brown color. | | The burning of trash until only ashes remain. | | To throw garbage on the ground instead of in a garbage can. | | A resource such as solar energy or wood that is inexhaustible or can be replaced by new growth. |
|
|
2. |
recycle | To reuse waste materials and make new products with them, instead of throwing them away. | | This is an agricultural method that rainforest farmers use. They burn the forest to clear an area where they can grow plants. | | A hard material that is made up of one or more minerals. | | Releasing waste materials or other unwanted substances into the environment. This makes our environment ugly, noisy, and unhealthy. |
|
|
3. |
landfill | A large hole where garbage is dumped and covered with soil. | | The solid rock under soil. Weathering may break down parts of this to make soil. | | A nonliving, solid material that was formed in nature and has particles arranged in a repeating pattern. | | The part of soil made up of decayed leaves and organic matter that helps plants grow. |
|
|
4. |
weathering | To reuse waste materials and make new products with them, instead of throwing them away. | | Nuclear, chemical, medical, petroleum, pesticides, paint, and other materials that can harm soil or water supplies and poison living things. | | A part of erosion where rocks, minerals, and immature soils at or near the earth's surface are broken down into smaller pieces. | | We use this term to describe the disappearance of forests due to land development, cultivation, or lumbering. |
|
|
5. |
mineral | A sudden shift or movement of the earth's crust. These often occur along faults. | | A nonliving, solid material that was formed in nature and has particles arranged in a repeating pattern. | | A large hole where garbage is dumped and covered with soil. | | A scientist who studies the earth. |
|
|
6. |
erosion | This covers most of the earth's land. This is made up of rock and mineral particles plus material from dead and decaying plants and animals. | | A moist, sticky sedimentary material consisting of very fine grains. This type of soil holds much more water than other types of soil. | | Land, water, air, trees, coal, and other things found in nature that support life on Earth. | | This occurs when running water, sea waves, wind, or glaciers pick up and carry away materials from the earth's surface. |
|
|
7. |
rock | Resources that are not replaceable after they have been used up and need to be conserved. | | A hard material that is made up of one or more minerals. | | A type of topsoil which is a mixture of sand, silt, clay, and organic matter. This is excellent for growing plants and many farmers use this on their farms. | | To throw garbage on the ground instead of in a garbage can. |
|
|
8. |
humus | This is an agricultural method that rainforest farmers use. They burn the forest to clear an area where they can grow plants. | | The protection, preservation, and wise use of natural resources. | | The part of soil made up of decayed leaves and organic matter that helps plants grow. | | The burning of trash until only ashes remain. |
|
|
9. |
geologist | A scientist who studies the earth. | | A moist, sticky sedimentary material consisting of very fine grains. This type of soil holds much more water than other types of soil. | | Nuclear, chemical, medical, petroleum, pesticides, paint, and other materials that can harm soil or water supplies and poison living things. | | To throw garbage on the ground instead of in a garbage can. |
|
|
10. |
topsoil | This covers most of the earth's land. This is made up of rock and mineral particles plus material from dead and decaying plants and animals. | | A nonliving, solid material that was formed in nature and has particles arranged in a repeating pattern. | | A resource such as solar energy or wood that is inexhaustible or can be replaced by new growth. | | The first 4 to 10 inches of soil. It contains the most humus and is usually a dark brown color. |
|
|
11. |
renewable resource | The solid rock under soil. Weathering may break down parts of this to make soil. | | The protection, preservation, and wise use of natural resources. | | A type of topsoil which is a mixture of sand, silt, clay, and organic matter. This is excellent for growing plants and many farmers use this on their farms. | | A resource such as solar energy or wood that is inexhaustible or can be replaced by new growth. |
|
|
12. |
slash and burn | A hard material that is made up of one or more minerals. | | This is an agricultural method that rainforest farmers use. They burn the forest to clear an area where they can grow plants. | | Land, water, air, trees, coal, and other things found in nature that support life on Earth. | | Resources that are not replaceable after they have been used up and need to be conserved. |
|
|