Beavers cut down trees to build__________
dams and form ponds
A weather change that repeats over and over is called a__________
weather pattern
Name a change that happens fast.
fire, earthquake, volcano, flood
Name a change that happens slow.
drought, weathering, erosion, glacier movements
Which body of water holds most of Earth's water?
oceans
Anything people, animals, or plants can use to meet their needs are called___________
resources
Which part of the day is the warmest?
afternoon
Which change happens when streams, rivers, or lakes overflow?
flood
Which change happens when a place goes a long time with very little rain?
drought
What is fresh water?
water with very little salt
People can harm the environment by causing___________
pollution
The way water moves from Earth's surface into the air and back again is called the _______________
water cycle
Name one cause of a forest fire.
lightning hitting dry leaves, people forgetting to put out their campfires, accident
Which change happens when wind and water break down rock into smaller pieces?
weathering
salt water
People can help the environment by__________________
recycling, picking up trash, planting trees
Clouds are formed when______________
water vapor condenses into tiny drops of water
What happens in a forest after a fire?
New plants and trees will start to grow.
Which change happens when wind and water move rocks and soil?
erosion
Glaciers are made of____________
frozen fresh water
This means to use old resources to make new things
recycle
Where will water go when the sun heats it?
It will evaporate and go into the air.
Where does hot, melted rock come out of the ground?
a volcano
What can help stop erosion?
trees and plants
How are lakes and rivers different?
The water in lakes does not flow, but the water in rivers does flow.