Biology
Chemistry
100
Heart
What is the organ that pumps blood around the body
100
Water
What is the common name for H2O?
200
stomach
What is the organ that breaks down food?
200
Carbon dioxide
What is the main gas that contributes to the greenhouse effect?
300
lungs
What is the organ that puts oxygen into your body?
300
table salt
What is the common name for sodium chloride?
400
nose
What is the part of the body you smell with
400
periodic table
What is the name for the table that lists all the known elements?
500
hand
What part of the body do you grab things with?
500
proton
What is the name of the positive particle in the nucleus of the atom?
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