formation
What is coal?
This black fossil fuel comes from dead plants.
What are fossil fuels?
Coal, oil, and natural gas are all examples of these.
What is air pollution?
Burning fossil fuels causes this type of pollution in the air.
What is drilling (or mining)?
Fossil fuels are taken from deep underground using this process.
What is solar energy?
This renewable energy comes from the sun.
What is millions of years?
Fossil fuels take this long to form underground.
What is oil?
This fossil fuel is used to make gasoline.
What is carbon dioxide (CO₂)?
Fossil fuels release this gas into the atmosphere.
What is offshore drilling?
This type of drilling is done offshore, deep under the ocean, to reach oil deposits.
What is wind?
Wind turbines use this to make electricity.
What is pressure?
Heat and this help form fossil fuels underground.
What is natural gas?
This fossil fuel is often used to heat homes.
What is global warming?
The warming of Earth caused by pollution is called this.
What are oil rigs (or oil wells)?
Oil is commonly pumped from the ground using these structures.
What is nonrenewable?
Fossil fuels are this type of resource because they can run out.
What are animals?
Fossil fuels are made from dead plants and these living things.
What are the three main types of fossil fuels?
The three main types of fossil fuels are coal, oil, and natural gas.
What are animals?
Oil spills can hurt fish, birds, and other this.
What is fracking?
This process uses water and chemicals to break rocks underground to collect natural gas.
What is hydroelectric power?
This renewable energy source uses moving water to make electricity.
How do sedimentary rocks help preserve fossils, and why are fossils less commonly found in igneous rocks?
Fossils form best in sedimentary rocks because sediment covers and protects dead organisms. Igneous rocks are too hot and usually destroy remains.
What is electricity?
People burn fossil fuels to make this type of energy for homes and schools.
What is climate change?
Hurricanes, floods, and heat waves can become more common because of this environmental issue.
What are power plants?
Fossil fuels are burned in these places to produce electricity for homes and businesses.
What is renewable energy?
A long-term solution to climate change is switching from fossil fuels to this type of energy.