Cubangbang #160784 Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Question | Answer |
Renewable energy; these can be replaced by natural means in a relatively short amount of time. | geothermal, hydroelectric, wind, solar |
Nonrenewable resources; cannot be replaced easily | coal, natural gas, uranium, petroleum, |
Materials available on earth for our use; provided by God | natural resources |
Fossil fuels; formed when remains of plants and animals are buried quickly; provide most of the energy we use | fossil fuels |
liquid form of fossil fuel | petroleum |
oil pumped from wells come in this form | crude oil |
a factory that separates crude oil into different products | refinery |
solid substances naturally found in the earth's surface; often contains ores; it has never been a living organism | mineral |
concentrated areas of specific minerals | vein |
a mineral used in nuclear reactors | uranium |
Problems that occurs as a result of using fossil fuels | air pollution, oil spills, production of soot and sulfur gases |
Uses heat to produce steam; an advantage is that plants are inexpensive to build and operate | geothermal energy |
Disadvantages of wind and solar energy | Requires large land areas |
Advantages of wind energy | Does not cause pollution, Requires little maintenance |
Soft & shapeable metals; example is gold | malleable |
process of removing dross from ores | smelting |
Ways to conserve soil (an important natural resource) | let fields lie fallow (resting), rotate crops, plant ground cover crops (low-growing crops that lessen erosion in unused fields), use contour plowing (method that keeps water from washing soil away) |
Water cycle | precipitation, transpiration, evaporation, condensation |
All of the earth's water | Hydrosphere |
The layer of sand, gravel, or bedrock that holds and moves ground water (water stored beneath the surface of the earth) | aquifer |
a floating ice sheet; very thick and forms from fresh water and covers land | ice shelf |
forms when sea water freezes; relatively thin and forms from salt water and has no land under it | sea ice |
3 ways the ocean provides resources | oceans influence climates, part of the water cycle, part of the carbon dioxide-oxygen cycle |
Created by:
jcubangbang
Popular Science sets