Chemistry is the study of matter.
Matter is anything that has mass.
Mass is anything that has weight and takes up space.
What things have mass? How do you know? List below:
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For the parent: This is best approached as a discussion. I had each of my 3 kids (ages 9, 10 and 11) come up with their own lists separately (I gave them about 5 minutes), then we came together and discussed their answers. They had an intense discussion about whether or not air is matter, until one of them mentioned that when we blow up a balloon we can see that it takes up space. This led to finding a balloon and weighing it empty, then blowing it up and weighing it full to determine whether or not air had weight. (It does).
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