L 2 u 18 p 2

If you heat a piece of metal,

• it expands

• it contracts.

• it boils.

• it freezes.

• it melts.

If you cool a piece of metal,

• it expands

• it contracts.

• it boils.

• it freezes.

• it melts.

If you heat water to 100"C,

• it expands

• it contracts.

• it boils.

• it freezes.

• it melts.

If you lower the temperature of the water to 0"C,

• it expands

• it contracts.

• it boils.

• it freezes.

• it melts.

If you heat ice,

• it expands

• it contracts.

• it boils.

• it freezes.

• it melts.

If you pour some water in a bowl and place it in the hot sun,

• it evaporates.

• it rusts.

• it dissolves,

• it bounces,

• it breaks.

If you leave a piece of iron in water,

• it evaporates.

• it rusts.

• it dissolves,

• it bounces,

• it breaks.

If you put sugar in hot tea and stir,

• it evaporates.

• it rusts.

• it dissolves,

• it bounces,

• it breaks.

If you drop a rubber ball,

• it evaporates.

• it rusts.

• it dissolves,

• it bounces,

• it breaks.

If you drop a glass ball,

• it evaporates.

• it rusts.

• it dissolves,

• it bounces,

• it breaks.