'As a Matter of Fact - Assessment

Which solid melts at 0 degree's celcius?

Solids have a fixed shape and volume. However, liquids have a

A material becomes a solid as a result of

The mass of a solid when it melts to a liquid will be

A piece of metal is a solid in a freezer, and remains a solid outside. Why is this?

When an object changes state, the properties are different but the actual material remains the same.

Both a small and large object of the same material, in the same temperature, will melt at the same time.

Ice cream is a liquid.

When a material melts it will eventually turn to water.

The molecules of a solid are fixed, vibrate and do not move.

You leave ice cream in the car on a hot day. When you get home you put it in the freezer. Describe the changes of state the object will go through.

You place a small piece and a large piece of chocolate out in the sun. Which one will melt first? why is this?

Observe the image above of the molecules in solids and liquids. Identify two differences. Hint - think of our movement game we did back in lesson three!