Which force keeps us anchored to the Earth?

Which invention is Thomas Edison famous for?

What type of energy is stored in food?

What unit is used to measure electric current?

What gas do humans need to breathe to survive?

Which instrument is used to look at stars and planets?

Which technology is used in fingerprint scanners?

What kind of energy does a moving object have?

Which device converts sound waves into electrical signals?

What does DNA stand for?