Solutions

Why does ice float in water?

• It is less dense than liquid water

• It is more dense than liquid water

• It has no density

True or False: Water heats up and cools down quickly

• True

• False

Density is the relationship between

• mass and time

• mass and volume

• length and time

• length and volume

When water freezes and becomes a solid its density

• increases

• decreases

• stays the same

During a phase change which of the following will change?

• mass

• volume

• both mass and volume

As heat energy is added the particles inside a substance

• gain energy

• spread out

• move around more

• stand still

Calculate the mass of a liquid that has density of 10g/ml and a volume of 60ml.

• 6g

• 60g

• 600g

Liquid water

• is more dense than ice

• is less dense than ice

• has the same density as ice

Water

• expands when it freezes

• contracts when it freezes

• neither contracts nor expands

True or False: A phase change will cause a change in density.

• True

• False