Review crossword

3. The .... comes out of the roots and holds the leaves and flowers of the plant.
8. They are used to change solar power into electricity.
10. Dinosaurs and mammoths are ....
11. The biggest and fastest bird runner.
12. Reptiles haven't got fur, they have ....
14. A scientist that studies minerals.
15. Bones or plants that we can find in layers of rocks or soil.

1. One of the most beautiful and expensive minerals that we use in rings, necklaces, etc.
2. A sandy, hot habitat with almost no plants.
4. Insects bring .... on their wings.
5. Some snakes, spiders, frogs, fish and other animals can be dangerous because they are ....
6. In the desert you can find this plant. It hasn't got leaves.
7. Birds haven't got fur, they have ....
9. Turtles have a very strong and hard ....
13. We use this mineral to write on the blackboard.
16. If we put a .... in the soil a plant will grow.
17. It's a reptile that has four legs and is not as big as a crocodile.