Why did the Native Americans change their environment?
To meet their needs
Name one of the most famous dams in the United States.
Hoover Dam
What do you call the plants and animals that live in a particular place?
Ecosystem
What did the Native Americans use to clear their land for building and for farming?
Fire
What turns the energy of moving water into electric power?
Hydroelectric Dams
A __________ the a home of an animal or a plant.
Habitat
How did Native Americans make it easier to catch fish to eat?
They dammed rivers
Name two things the Hoover Dam provides for people in California, Arizona, and Nevada.
A dependable water supply and it generates energy.
Over time, humans have cleared a lot of land across the world.
What do we call the loss of forests?
Deforestation
Name two natural resources from the environment that Native Americans used in order to eat.
Hunted animals, gathered wild plants, nuts, seeds, and berries
THe Hoover Dam helps control the flow of which river?
The Colorado River
_________ means a type of animal that has died out.
Extinct
How did Native Americans water their crops?
They dug canals.
This helped to move the water in the direction they needed it to go.
__________ has made today's environmental changes even BIGGER!
Technology
________ means the animal is at risk of becoming extinct.
Endangered