Across
- 1. What type of substance has a pH lower than 7?
- 5. What type of rock is limestone?
- 8. What is the name of the Austrian monk who investigated inheritance in pea plants?
- 11. Which nutrient group does glucose belong to?
- 15. What is produced when a chemical reaction joins two or more elements together?
- 16. Which famous scientist discovered gravity?
- 17. Which word describes someone who doesn’t have a balanced diet?
- 18. What subcellular structure contains DNA and controls the cell?
- 19. Who proposed the theory of evolution?
- 20. Force is measured in __________.
- 21. Which food group are pasta, bread and potatoes all good sources of?
Down
- 2. The amp (A) is the standard unit of _______.
- 3. Temperature is measured in __________.
- 4. From which organ are the useful products of digestion absorbed into the blood?
- 6. What are substances that speed up the rate of chemical reactions in the body?
- 7. A moving object has energy in its __________ energy store.
- 9. Solids, liquids and gases are called the three states of matter. Steam is an example of a __________ .
- 10. Which structures in plant cells carry out photosynthesis?
- 12. The joule (J) is the standard unit of ______.
- 13. Li is the symbol for ___________.
- 14. What type of force is magnetism an example of?
- 19. What is the change of state called when a gas turns into a liquid?