1. noun - canyon
a large valley with very steep sides.
2. noun - coral reef
an area of coral.
3. noun - glacier
a large mass of ice that moves slowly.
4. noun - lake
a large area of water surrounded by land.
5. noun - river
a natural wide flow of fresh water.
6. noun - rock
the dry solid part of the earth's surface.
7. noun - waterfall
water dropping from a higher to a lower point.
8. adjective - deep
a particular distance from the top to the bottom.
10. adjective - scary
frightening
11. adjective - rainy
raining a lot
12. adjective - good
very satisfactory.
13. adjective - big
large in size or amount.
15. adjective - cold
at a low temperature.
16. adjective - hot
having a high temperature.
