How do particles combine into new substances?

• They don't combine to each other

• Particles combine using heat

• Particles combine using water

• All of the above

How can you tell that a chemical reaction has taken place?

• Texture change

• Color change

• New state formed (i.e. liquid, gas, solid)

• All of the above

What's an example of a physical reaction?

• Snow melting

• Opening a door

• Rock wall

• All of the above

What's an example of a chemical reaction?

• Iron and oxygen = rust

• Digestion

• Cooking

• All of the above

The activity today showed chemicals combining to each other and being _____ to create a chemical reaction.

• Heated

• Cooled

What occurred when the chemicals and heat were mixed together?

What safety items were used today?

• Nothing

• Safety googles

• Aprons

• Eye wash station

Write three things that you learned today after watching the demonstration.