End of Term 1 Revision

Making concrete is a chemical reaction.

• True

• False

A chemical reaction can happen with only one substance.

• True

• False

A chemical reaction can happen with two substances or more.

• True

• False

We can undo a chemical reaction.

• True

• False

When chocolate melts, it is a chemical reaction

• True

• False

Chemical reactions make new substances form.

• True

• False

Kinan mixed baking soda with vinegar, dish soap and food colouring.

Did a chemical reaction take place?

• Yes

• No

Chemical reactions happen when -----------------

• substances stay the same

• A new substance is formed

The electrical energy transferred from electrical energy to_______

• air

• sound

• heat

• heat and sound

Which object transfers the energy to light energy?

• 
•