Across
- 6. A variable that can have any value
- 8. A variable the scientists changes
- 10. This system includes all hormone glands
- 12. A force with only a size
- 14. A variable the scientists keep the same
- 17. This man invented binomial naming
- 19. This is measured in kg per m/s
- 21. This is the negative electrode
- 23. These waves travel backwards and forwards in the direction of movement
- 26. Substance with a pH below 7
- 27. This hormone increases blood glucose levels
- 28. These bonds form between positive and negative ions
- 29. This hormone controls BMR
- 30. A base that dissolves in water
- 31. An example of a non contact force
Down
- 1. A variable the scientists measure
- 2. A gain in electrons or loss of oxygen
- 3. This hormone decreases blood glucose levels
- 4. These bonds share electrons
- 5. These are atoms of an element with different numbers of neutrons
- 6. A variable that has set groups
- 7. These waves travel at right angles to the direction of movement.
- 9. This process can be used to separate ions in a solution
- 11. A gain of oxygen or loss of electrons
- 13. This describes a giant repeating patter
- 15. These subatomic particles are positive
- 16. A force with a size and direction
- 18. This part of a cell controls cell activity
- 20. This causes a change in DNA
- 22. This man 1st suggested the idea of evolution
- 24. Speed and direction
- 25. This is the positive electrode