Do you know the words to these definitions?

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!

1. " " = a nickname for Australia and New Zealand, which are below the equator in teh Southern Hemisphere

2. = a white, pink, or reddish stonelike substance formed from the bones of very small sea animals

3. = a line of rocks, sand, or coral just above or just below the surface of the sea

4. the = a mixture of gases surrounding the earth

5. = the heating up of the earth worldwide

6. ozone layer = a level of air high above the earth that contains a lot of ozone (a form of oxygen); it prevents harmful ultraviolet light from the sun from reaching the earth

7. = things that can be (easily) thrown away after being used

8. materials = collected and treated (trash) to produce useful materials that can be used again.

9. = that let water out even when they're not turned on.

10. = a high area of rock with a very steep side, often at the edge of the sea or ocean

11. = one of the large land masses of the earth such as Europe, Asia or Africa.

12. = a large area of land that has very little water and very few plants growing on it.

13. = a large area of land that is thickly covered with trees.

14. = a large area of flat land

15. = an area of flat land that is higher than the land around it.

16. = an area of ground that is very wet or covered with water and in which plants, trees are growing.

17. = an area of low land between hills or mountains, often with a river flowing throught it.

18. = a mountain with a large opening at the top which gases and lava (hot liquid rocks) are forced out into the air.

= a high area of rock with a very steep side, often at the edge of the sea or ocean

11. = one of the large land masses of the earth such as Europe, Asia or Africa.

12. = a large area of land that has very little water and very few plants growing on it.

13. = a large area of land that is thickly covered with trees.

14. = a large area of flat land

15. = an area of flat land that is higher than the land around it.

16. = an area of ground that is very wet or covered with water and in which plants, trees are growing.

17. = an area of low land between hills or mountains, often with a river flowing throught it.

18. = a mountain with a large opening at the top which gases and lava (hot liquid rocks) are forced out into the air.