Across
- 1. a unit used to measure mass
- 4. contains saliva
- 5. a system which digests food into simpler substances so that it can be used by the body
- 7. has mass and occupies space
- 12. produces flowers
- 16. allows light to pass through
- 18. has no definite shape but has definite volume
- 19. absorb sunlight for the plant to make food
- 21. protects the heart and lungs
- 22. keep the plant upright
- 23. burns down easily and is the trunk of a tree
- 24. measured using electronic balance
Down
- 2. has no definite volume
- 3. a system which protects delicate organs in the body
- 4. can be attracted by magnets
- 6. a system which works together with the skeletal system to move the body
- 7. a unit used to measure volume
- 8. occupies space
- 9. have scaly skin
- 10. push away each other
- 11. live underwater and have scales
- 13. does not absorb water
- 14. pull in each other
- 15. no digestion takes place here
- 17. reproduce by giving birth to their young
- 20. has definite shape and volume
- 21. absorb water and mineral salts from the soil