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

sem two topics

TermDefinition
newtons derived unit of force
Balanced forces two forces acting in opposite directions on an object
Gravity the force that attracts two bodies toward each other
Friction the resistance to motion of one object moving relative to another
spring balance spring balance is a type of mechanical force gauge
weight the weight of an object is related to the force acting on the object
mass both a property of a physical body and a measure of its resistance to acceleration
spring tide This tide usually adds only a couple of inches to normal tides.
earths rotation the rotation of Planet Earth around its own axis.
bouyancy a force that acts in water and pushes objects upward.
solar eclipse a portion of the Earth is engulfed in a shadow cast by the Moon
static electricity an imbalance of electric charges within or on the surface of a material.
heliocentric model the universe with the sun in the center
geocentric model the Universe with Earth at the center
planet order Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto
mitochondria double-membrane-bound organelle found in most Eukaryotic organisms
cell wall structural layer surrounding some types of cells
microscope an instrument used to see objects that are too small to be seen by the naked eye
probe sent away from earth to observe things
Created by: Jbelcher
 

 



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