Lesson 4: What do fireworks, rubber, and silly putty

What are some materials mentioned that do not grow naturally?

• Wood and trees

• Plastic, concrete, and glass

• Soil and rocks

• Water and air

What is left after the acid evaporates from the metal?

• A liquid

• A gas

• A powder

• A solid block

What do you get when you react copper metal with acid?

• A liquid

• A gas

• A powder

• A crystal

What does the acid do to the metal initially?

• Makes it grow

• Makes it disappear

• Makes it change color

• Makes it magnetic

What is the purpose of the lesson?

• To teach about plant growth

• To explain chemical reactions and material creation

• To describe weather patterns

• To discuss animal habitats

What is the reaction between metals and acid primarily used to create?

• New metals

• New powders

• New liquids

• New gases

What is rubber used for?

• Making glass

• Making tires

• Making metal

• Making wood

What is latex?

• A type of metal

• A type of wood

• A sap from a tree

• A type of plastic

What is rubber made from?

• Latex and water

• Latex and acid

• Oil and water

• Oil and acid

What did you have to write down in the experiment?

• Your favorite part of the experiment

• The results in the Milk and Baking Soda box

• The names of your group members

• The time it took to complete the experiment