Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

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.
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.
Didn't know it?
click below
Knew it?
click below
Don't know (0)
Remaining cards (0)
Know (0)
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

Density practice

What is the density of a rock with a mass of 45g and a volume of 15ml? 3 g/ml
Which would be more dense - a container with 9 atoms and a volume of 1mL or a container with 9 atoms and a volume of 2mL? Container with 9 atoms and a volume of 1 mL
Does hot air/water rise or sink? Why? Hot air/water rises because it is less dense than cold air/water
What causes convection currents to happen? Differences in density - hotter stuff is less dense than colder stuff, therefore hot stuff will rise and cold stuff will sink
Do you think that cold ocean water is more or less dense than warm ocean water? Cold ocean water is more dense - the particles are closer together than hot ocean water
Which is saltier - cold ocean water or hot ocean water? Cold ocean water - when water freezes, the salt gets left behind, making the ocean water in the poles saltier and more dense.
Why does high pressure move to low pressure, causing wind? Because high pressure is air that is more dense. Low pressure is air that is less dense. A low pressure area has more space for air molecules, so the high pressure moves to the low pressure to fill in that space.
What is the formula for density? Density=m/V = mass/volume (mass divided by volume)
What are the units for volume? mL, cm^3, or L
What are the units for mass? g or kg
What are the units for density? g/mL, kg/L, g/cm^3
1 mL = ? 1 cm^3 = 1mL
What is the density of pure water? 1 g/mL
What causes and object to sink or float in water? An object will sink if it is more dense than water (> 1g/mL) and it will float if it is less dense (<1 g/mL)
Created by: mparr01



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:
restart all cards