Save
Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


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.
We do not share your email address with others. It is only used to allow you to reset your password. For details read 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
share
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

yr 7 sci revision

semester 2 topics

TermDefinition
newtons the unit of which force is measured in
balanced forces two forces acting in opposite directions on a object, and equal size
gravity a pulling force that helps us stay on the ground
contact forces any force that requires contact to occur eg. pushing, kicking etc
friction Friction is the resistance of motion when one object rubs against another
spring balance the tool to measure the weight of something
weight how much some weights
spring tide the large rise or fall of the tide at or soon after the new or full moon
earths rotation 24 hours
probe a spacecraft that collects information about other planets
telescope takes pictures of planets and stars
solar eclipse when the moon blocks the sun
static electricity occurs when there is a build up of electrons on something, giving it an electric charge.
buoyancy a force that acts in water and pushes objects upward.
heliocentric model the theory that the sun is in the middle of the universe/solar system
geocentric model the theory that the earth is in the middle of the universe/solar system
planet order Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto
mitochondria the energy source in the plant cell
cell wall a strong, protective structure that surrounds a plant cell
microscope a device that magnifies tiny objects, or makes them look larger
non contact force when a force acts on an object without physically touching it.
Created by: rrandazzo.12
 

 



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