Across
- 3. element that is essential for life
- 4. the smallest unit of matter (like a scoop)
- 7. two or more atoms bonded together
- 8. the variable that is changed or tested in an experiment
- 9. sharing of electrons between two atoms
- 11. a type of atom (like flavors of ice cream)
- 12. the testable guess to a testable question
Down
- 1. the variable that is tested in an experiment
- 2. where plants gets 99% of their mass
- 5. a question that scientists start their experiments with
- 6. the process that converts sunlight, water, and carbon dioxide into glucose and oxygen
- 10. anything that has mass and takes up space