Save
Upgrade to remove ads
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Water Sources

Science Test

QuestionAnswer
Water Cycle A process in which all of Earth's water is recycled
What powers the water cycle? energy from the sun
About how much of the Earth's water is stored in the ocean as salt water? 97%
Where is the most fresh water on Earth located? glaciers and ice caps
Why is it important to conserve water? - most of Earth's water is salt water -people and other organisms must have freshwater to live -people use freshwater faster than it can be naturally replenished through water cycle -most fresh water is hard to access since it's in glaciers/ice caps
What is the sun's role in the water cycle? -sun heats water causing liquid to turn to gas (evaporation) -sun is a source of energy for that step in water cycle
Describe one way that human activity can negatively impact an ecosystem. -cut down forests- destroying/changing ecosystem -litter and dump trash- unsafe for organisms/drinking water unsafe -transportation uses fuel that pollutes air -factories pollute air- poor air quality
Describe one way humans can reduce the impact on Earth's resources through positively impacting the ecosystem. -reduce the amound of waste we produce -reuse items -recycle materials into something new -plant new trees to replace the ones that were cut down -reduce pollution from factories and plants -prevent run-off from agriculture -clean sewage water
evaporation the sun's heat turns liquid water into a gas
condensation water vapor forms clouds in the atmosphere
precipitation water falls from clouds to the Earth as rain, snow, etc.
run-off water flows down a mountain as a river
geosphere consists of earth’s interior and the solid, rocky crust covering all of the planet, including the ocean floor. It is made of soil, liquid magma, minerals, sediments, and sand.
atmosphere the body of air that surrounds our planet
biosphere composed of all living organisms, such as plants, animals, and humans
hydrosphere composed of all the water on or near earth
Created by: cronina
 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards