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Total questions: 12
Worksheet time: 6mins
What can you infer from the fact that global warming has only been a problem for the last 100 years or so?
a. Prior to 100 years ago, the greenhouse effect on the earth was too minor to be detected.
b. The earth moved significantly closer to the sun about 100 years ago.
c. People have only been pumping large quantities of greenhouse gases into the atmosphere for 100 years or so.
d. The movement of glaciers was a major problem for people 100 years ago.
Which of the following is a true statement about fossil fuels?
a. There is an infinite supply of them within Earth's crust
b. They are very difficult to refine into usable fuel.
c. Burning them creates air pollution.
d. They are not carbon-based.
Which of the following is a greenhouse gas?
a. Oxygen
b. Nitrogen
c. Methane
d. Hydrogen
What might happen if the greenhouse effect didn't exist?
a. It would be too cold for humans to survive on the earth.
b. The earth's temperature would be much more comfortable
c. The sun's rays would never reach the surface of the earth
d. The earth wouldn't have an atmosphere.
Which of the following is a drawback to wind energy?
Wind turbines can cause cancer among people who live near them.
b. Wind turbines can hurt flying animals.
c. There aren't enough suitable sites in the U.S. to build wind farms.
d. Wind turbines emit greenhouse gases.
Which of these is not currently a source of usable energy?
a. The Sun
b. The Moon
c. Heat from within Earth's crust
d. Running water
Why is solar energy considered a renewable energy source?
a. You can get money back from the government if you put solar panels on your house.
b. Solar energy is cheaper than fossil fuels.
c. The sun's energy will not run out for billions of years.
d. Solar energy can be used to recharge batteries.
What might happen if transformers didn't exist?
a. The electricity in your house might have an extremely high voltage.
b. Electricity could not be distributed through power lines to people's homes.
c. Electricity could not be created at power plants.
d. The direction of the electric current in your home might switch back and forth.
What was the first step in the engineering process for the egg drop?
a. Test
b. redesign and retest
c, plan and build
d. ask a question - find a problem
What can you infer from the fact that there is the same amount of water on the planet now as therewas one billion years ago?
a. The total amount of water on earth changes gradually over time.
b. There will probably be the same amount of water on the planet a billion years from now.
c. There have been many fluctuations in the water cycle over the last billion years.
d. There will be much less water on earth one billion years from now.
How does electricity travel from power plants to your house?
a. It travels through the air as electromagnetic waves.
b. Through a series of generators.
c. Through a series of many transformers.
d. Through transmission wires.
Which reservoir in the water cycle contains the most water?
a. The ice caps
b. The oceans
c. Groundwater
d. Surface water
