Science - Energy Resources - Fossil Fuels

Circle the letter of each sentence that is true about the production of electric power. *a.* In most power plants, water is boiled to make steam. *b.* The mechanical energy of steam turns the shaft of a generator. *c.* Powerful magnets turn inside a wire coil. *d. * Electricity is produced by a turbine.

*a.* In most power plants, water is boiled to make steam. *c.* Powerful magnets turn inside a wire coil.

A substance that provides a form of energy, such as heat, as a result of a chemical change is a(n) ________________.

fuel

Circle the letter of each sentence that is true about natural gas. *a.* It produces a lot of energy. *b.* It produces more air pollutants than oil. *c.* It is difficult to transport *d.* It is highly flammable.

*a.* It produces a lot of energy. *d.* It is highly flammable.

Circle the letter of each sentence that is true about petroleum. *a.* Petroleum accounts for more than half the energy produced in the world. *b.* Petroleum fuels most cars, airplanes, trains, and ships. *c.* The United states consumes a third of all the petroleum produced in the world. *d.* Finding oil is difficult.

*b.* Petroleum fuels most cars, airplanes, trains, and ships. *c.* The United states consumes a third of all the petroleum produced in the world. *d.* Finding oil is difficult.

Is the following sentence true or false? Energy cannot be converted from one form to another.

False

Is the following sentence true or false? The major use of coal is to fuel factories.

False

Is the following sentence true or false? Today, coal provides 23 percent of the energy used worldwide.

False

Energy-rich substances formed the remains of once-living organisms are called ________________.

fossil fuels

Circle the letter of the sentence that is true about coal as an energy source. *a.* It is the least plentiful fossil fuel in the United States. *b.* It is difficult to transport. *c.* It provides a lot of energy when burned. *d.* It produces less air pollution than other fossil fuels.

*c.* It provides a lot of energy when burned.

How can coal mining harm the environment?

Coal mining can increase erosion and run-offs from mines and can cause water pollution

Energy-rich chemical compounds that contain carbon and hydrogen atoms are called _________________.

Hydrocarbons

Is the following sentence true or false? Because natural gas is less dense than oil, it often rises above an oil deposit.

True

A solid fossil fuel formed from plant remains is ________________.

coal

List the three major fossil fuels

coal, oil, and natural gas

The process of burning a fuel is called __________________.

combustion

When oil is first pumped out of the ground, it is called _________________.

crude oil

Another name for oil--the thick, black, liquid fossil fuel-- is ____________.

petroleum

A factory where crude oil is separated into fuels and other products by heating is called a(n) __________________.

refinery

Scientists can use __________________ to test an area for oil without drilling.

sound waves

Is the following sentence true or false? The energy stored in fuels can be used to generate electricity.

true