Which is true about density? A possible unit for density is grams.

Liquid gold is denser than solid gold.

Density is found by multiplying mass and volume.

Density is independent of the amount of the sample.

Examine the image shown below.

What is the melting point of a substance

When its temperature changes from a gas to a liquid.

When its temperature changes from a liquid to a solid.

When its temperature changes from a liquid to a gas.

When its temperature changes from a solid to a liquid.

Which physical property is the rate at which a substance transfers heat?

boiling point

density

electrical conductivity

thermal conductivity

Lisa is using a magnet to pick up various objects. Which object is not attracted to her magnet?

cobalt

iron

nickel

wood

Can someone please help me with these