+
Related Flashcards
Related Topics
Cards In This Set
| Front | Back |
 fossil |
trace or remains of something that lived long ago (shells, bones, skin, leaves, foot-
prints)
|
 Mold |
an empty space in rock where something once was
|
|
Cast
|
form a copy of the mold's shape
|
 Fuel |
material that is burned for its energy
|
 Fossil Fuel |
fuel that forms from the remains of ancient plants and animals
|
 Renewable Resource |
resource that can be replaced or used again and again
|
|
Nonrenewable Resource
|
resource that can not be replaced or reused easily
|
 Solar Energy |
energy from the sun
|
 Groundwater |
Water that is held in rocks below the ground
|
 Aqueducts |
carry water to where it is needed
|
|
Reservoir
|
stores water for people to use
|
|
Wells
|
deep holes in the ground to bring water to people.
|
|
Pollution
|
harmful things get into water, air, and land
|
