6th Grade SOL Review

What role does the sun play in our energy sources?

• It is not connected to any energy sources.

• It is connected only to solar energy.

• It is the source of only geothermal energy.

• It is connected to the formation of most of our energy sources.

What is a renewable energy resource?

• a fuel formed from the remains of plants and animals that died millions of years ago

• an energy resource that either can be replaced as it is used or cannot be used up

• an energy resource that is used much more quickly than it can be replaced

• a material that people burn to get energy

Which of these is a nonrenewable energy source?

• petroleum (oil)

• tidal energy

• solar energy

• wind energy

Which statement best describes what will most likely happen to some nonrenewable energy sources?

• Enough new coal and oil will form to meet our needs in the near future.

• People will no longer need to conserve natural gas and oil.

• Coal, oil, and natural gas will eventually be used up.

• Petroleum will be in short supply, but coal will still be available for use.

The wise use of natural resources is called

• graphing

• conservation

• biomass

• consumption

What is the step in the water cycle when clouds form?

• Warm air near the Earth's surface rises in the atmosphere

• Rising air loses thermal energy, and its temperature decreases

• Water vapor condenses around solid particles in the atmosphere

• Water evaporates from Earth's surface when the sun warms it

Which of these is a renewable energy source?

• oil

• wind energy

• coal

• nuclear power

Why is water known as the universal solvent?

• It dissolves all known substances.

• It dissolves all solids.

• It dissolves many substances.

• It dissolves oil.

Which gas makes up the largest part of the air in the atmosphere?

• oxygen

• nitrogen

• carbon dioxide

• helium

Which of these happens as you move higher in the atmosphere?

• air density increases

• breathing becomes easier

• air temperature increases

• air pressure decreases