1. What is all matter in the universe made of? - Atoms.
2. What does the word atom mean? . - Uncutable
3. Which particles in an atom are 'heavy' particles? - Protons and Neutrons.
5. Which particles in an atom are 'light' particles? - Electrons
7. Which particles in an atom are charged? - Protons and Electrons
8. Which particles act together to make atoms behave as solids? - Electrons
9. What is the difference between an atom and a molecule? - Atoms make up compounds like letters
(atoms) make up words (compounds).
10. Describe the experiment scientists used to determine the makeup of water: - They split water into H
and O atoms by running electricity through it
11. What is the difference between Aluminum and Copper? - The number of protons
12. What does the atomic number mean? - The number of protons
13. Which element is known as 'the building block of life'? - Carbon
14.Compounds that contain Carbonand Oxygenare called - organic
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