B16 Revision Crossword

2. A primary consumer is always a ____ because it eats plants
7. In a stable _______ the numbers of prey and predators rise and fall in cycles
8. The name given to coal, oil and gas which are formed over millions of years.
9. The beginning of the food chain. They make their own food.
13. This is the gas that we breathe out when we respire
14. 2 types of decomposers are bacteria and _______ .
15. A ______ consumer is always a carnivore
17. A living thing that breaks down dead material
19. The chemical reaction that plants use to make food

1. The name we give to a group of the SAME species is p_____
3. When water rains down and travels on top of the land in streams
4. This is the scientific word for burning. It releases carbon dioxide.
5. Transpiration is where ____ is released from plants through their leaves
6. The name we give to groups of different species living together is a C_____
8. Carbon gets from plants into animals from animals ______ on them
10. Some examples of precipitation are snow, hail, _____ and sleet
11. This is passed up the food chain and we draw it with an arrow
12. A common, microscopic plant found in water
13. Plants absorb light using their _______ and absorb carbon dioxide into their bodies.
16. When water in oceans changes state to a gas
18. A living thing that is hunted by a predator