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

D - Science - Unit 6

The Air Around You - Part 1

QuestionAnswer
What is the atmosphere made up of? a mixture of atoms and molecules of different kinds
What makes up a molecule? it is made up of 2 or more atoms
What is the earth's atmosphere made up of? nitrogen, oxygen, carbon dioxide, water vapor, and many other gases, as well as particles of liquids and solids
What is the most common gas in the atmosphere? nitrogen
Approximately, how much nitrogen is in the air we breathe? 3/4 or 78%
What is the movement cycle of nitrogen? the air to the soil, into living things, and then back into the air
What is the second most abundant gas in the atmosphere? oxygen
Approximately, how much oxygen is in the air we breathe? 1/4 or 21%
What do plants and other organisms use light for? to convert water and carbon dioxide into oxygen and to produce food
What is an example of a process that uses oxygen quickly? a fire burning
What is an example of a process that uses oxygen slowly? iron oxide, or rust forming on steel
What is in a nitrogen molecule? 2 nitrogen atoms
What is in an oxygen molecule? 2 oxygen atoms
What is in a carbon dioxide molecule? 1 carbon atom & 2 oxygen atoms
What do plants do with the carbon dioxide they get from the air? they make food
When plant and animal cells break down food to produce energy, what waste product do they give off? carbon dioxide
What 2 gases make up 99% of dry air? nitrogen & oxygen
What are the other 2 gases that make up the majority of the 1% of dry air? argon & carbon dioxide
What is a form of oxygen that has three atoms of oxygen, rather than two? ozone
Created by: lprinke
Popular Science sets

 

 



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