Science Review

The picture below shows sedimentary rock in layers. How were theses rocks formed?

• lava was rapidly cooled

• heat and pressure applied to granite

• sediment was deposited slowly over time

• magma from a volcano

All of the following are true about fossil fuels EXCEPT:

• They are renewable resources.

• They are the remains of dead plants and animals.

• They were formed over a long period of time.

• They often contribute to pollution of the atmosphere.

Look at the flow chart and complete the missing link.

• condensation

• cooling

• compaction

• melting

Which of the following sources of energy is NOT formed from prehistoric life?

• hydroelectricity

• natural gas

• petroleum

• coal

Which best describes how coal is formed?

• igneous rock exposed to weathering

• erosion of metamorphic rock

• preservation of animal fossils

• decomposition of dead plant material

Energy produced from sunlight is called ______ energy and is considered a ______ resource.

• geothermal, nonrenewable

• solar, nonrenewable

• hydroelectric, renewable

• solar, renewable

Fill in the blank in the chart.

• geothermal

• natural gas

• water

• animals

Which is an example of using geothermal energy to heat a house?

• a furnace that burns natural gas

• an electric heater powered by a nearby coal plant

• a radiator that pumps water deep underground to heat it and returns the water to the surface

• an electric heater powered by solar panels on the rooftop

Below is a chart of how we get our power in the United States. What conclusion can we reach from this information?

• The majority of our power comes from nonrenewable resources.

• We rely heavily on solar and wind energy.

• We are decreasing our use of renewable resources.

• Most of our power comes from hydroelectric plants.

In some parts of the United States, it rains on most days filling streams and rivers. Which renewable energy source would be best for this area?

• installing a field of solar panels

• constructing a large coal plant

• drilling for natural gas

• building a hydroelectric plant on a major river