What bacteria is more aggressive?
How many 9 inch helium filled latex balloons
would it take to lift me off the ground?
How do age and gender affect human reflexes?
How do planes fly?
Does carbon dioxide heat up faster than air?
What makes a banana turn brown?
What will happen when you dissolve sugar in cold and in hot water?
Do swimmers and singers have larger lung capacity?
Which liquid makes a hovercraft go faster?
Can you get better at exercise if you do it more frequently?
What will happen if you soak eggs in sugary drinks?
Will a marshmallow explode in the microwave?
What is iron?
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