Mountains
Desert
Animals
Water
Arizona
100

An herb with purple flowers that is usually grown as food for horses and cows.

Alfalfa

100

an area which does not receive much rainfall

arid

100

The ability of an animal to blend in with its surroundings.

camouflage

100

to water crops by digging a ditch that leads from a body of water to a farm

irrigate

100

natural features on the Earth's surface

landforms

200

shaped like an upside-down bowl

domed

200

shelter or protection from danger

refuge

200

no longer living, gone forever.

extinct

200

traveling through water in a boat that looks like a canoe

kayaking

200

carving or drawing in a rock usually made by people who lived a long time ago

petroglyph

300

The height to which something is raised.

elevation

300

poisonous

venemous

300

Animals without a backbone.

invertebrates

300

a pond or lake used for storing water

reservoir

300

a type of activity designed for rest and relaxation

recreation

400

A deep canyon that usually has a river running through it.

gorge

400

large, hairy extinct elephants with tusks that curved upwards

mammoths

400

Things found in nature that are valuable to humans.

resources

500

made of material that comes from a volcano

volcanic

500

animals with a backbone

vertebrates