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Answer the following in a seperate sheet of paper).
1. What similarities do you observe among the first five given samples?
2. Does each sample have a measurable mass (cars, leaves, sand, air and water)?
3. Do you think that each sample occupies space (no. 1-5)?
4. How about air? Does it have mass?
5. Do you think that heat, sound, and light have mass? Do they occupy space?