Across
- 2. we breath it in.
- 4. its a green substance in a plant
- 6. you need it to see in the dark
- 7. we breath it out.
- 10. scientists only ever change one variable in an experiment
Down
- 1. our breathing cycle that makes us warm
- 3. something that controls all of our cells
- 5. how our plants develop and grow and how they do it
- 8. its something sweet that u might put on your breakfast
- 9. its something clear we drink