Across
- 3. the part of an atom that is positive
- 6. when you describe an object using words and numbers
- 8. the part of an atom that is negative
- 12. the steps scientists take to make discoveries
- 13. a type of energy produced by the movement of electrons
- 14. the lightest atom in the universe
Down
- 1. a prediction about what will happen in an experiment
- 2. a chart that shows all the different types of atoms
- 4. when two or more atoms come together
- 5. a rock or piece of metal that can pull some metals towards itself
- 7. a metric unit of length that is smaller than an inch
- 9. a statement that says whether your hypothesis is correct or not
- 10. the information that scientists record during an experiment
- 11. the part of an atom that has no charge