Science 13.12.23

A ..... is when a substance changes state, shape, or form.

• physical change

• chemical reaction

• melting

• cooling

A ..... is when substances mix together, and a new substance is made.

• physical change

• boiling

• chemical reaction

• solidifying

A physical change is when a substance changes ....., shape, or form.

A chemical reaction is when substances mix together, and a new ..... is made.

Choose physical changes

• burning wood

• rusting

• melting ice

• boiling water

Which process is it: liquids heating and changing to gases

Which process is this: gases cooling and changing to liquids

Which process is this: liquids falling down to Earth through rain or snow