Question | Answer |
Rocks are made from substances found in nature called ______. | minerals |
A type ofhumus rock that is formed from layers of sand, mud, and pebble is called _______. | Sedimentary Rock |
You can compare minerals by looking at their ______. | color, texture, hardness |
A material found in soil that was once living or was formed by a living thing is ______. | humus |
A kind of soil with sand and clay is ______. | loam |
Fossils found inside a mold are known as _____. | casts |
A fuel is a material that is burned to get ______. | energy |
Coal was formed millions of years ago from a soft material called _____. | peat |
When liquid water evaporates, it forms | water vapor |
When a dam is built across a river, it helps to form a(n) ______. | reservoir |
When harmful materials get into water, air, or land, it can cause ______. | pollution |
An example of a nonrenewable resource is ______. | a metal |
Igneous rocks, like granite, are made when _______. | melted rock cools and hardens |
Topsoil is good for growing crops. Why? | It has a lot of humus |
How long does it take to create fossil fuel? | millions of years |
Where is the best place to find a fossil? | Sedimentary rock |