Relative Density

A rock is...

• Less dense than water

• More dense than water.

A boat has a lot of mass but it is still...

• Less dense than water.

• More dense than water.

Wood floats in water. That means that it is...

• Less dense than water.

• More dense than water.

A copper penny sinks in water. That means that it is...

• Less dense than water.

• More dense than water.

What is relative density?

• If an item is magnetic or non-magnetic.

• It an object floats or sinks in water.

• If an item dissolves in water or not.

• If a substance is a solid, liquid, or gas.

floating or sinking when compared to water.

• volume
• solution
• relative density
• mixture

The water is ______ dense than the boat

• more
• less

Why does the egg not sink or float?

• it is more dense than the water

• it is less dense than the water

• it has the same density as the water

• it is light

Tags

NGSS.MS-PS1-2

What happens when you heat a gas?

• It gains mass.
• It loses mass.
• It increases in volume.
• It decreases in volume.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Molecules spread out and move FAST!

• solid
• gas
• liquid

Tags

NGSS.MS-PS1-4