Question 1
Question
All radioactivity is man-made. Is this statement…
Question 2
Question
Electrons are smaller than atoms. Is this statement…
Question 3
Question
Lasers work by focusing sound waves. Is this statement…
Question 4
Question
The continents on which we live have been moving their location for millions of years and will continue to move in the future. Is this statement…
Question 5
Question
Which one of the following types of solar radiation does sunscreen protect the skin from?
Answer
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X-rays
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Infrared
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Ultraviolet
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Microwaves
Question 6
Question
Does nanotechnology deal with things that are extremely…
Question 7
Question
Which gas makes up most of the Earth’s atmosphere?
Answer
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Hydrogen
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Nitrogen
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Carbon Dioxide
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Oxygen
Question 8
Question
What is the main function of red blood cells?
Question 9
Question
Which of these is a major concern about the overuse of antibiotics?
Answer
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It can lead to antibiotic-resistant bacteria
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Antibiotics are very expensive
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People will become addicted to antibiotics
Question 10
Question
Which is an example of a chemical reaction?
Answer
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Water boiling
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Sugar dissolving
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Nails rusting
Question 11
Question
Which is the better way to determine whether a new drug is effective in treating a disease? If a scientist has a group of 1,000 volunteers with the disease to study, should she…
Answer
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Give the drug to all of them and see how many get better
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Give the drug to half of them but not to the other half, and compare how many in each group get better
Question 12
Question
What gas do scientists believe causes temperatures in the atmosphere to rise?
Answer
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Carbon dioxide
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Hydrogen
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Helium
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Radon
Question 13
Question
Which natural resource is extracted in a process known as “fracking”?
Answer
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Coal
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Diamonds
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Natural gas
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Silicon