Quiz on Chemical Changes and Waste Management

What occurs when a new material is produced after a chemical reaction?

• Mechanical change

• Chemical change

• Biological change

• Physical change

Which of the following is NOT an indication of a chemical change?

• Change in color

• Production of gas

• Change in shape

• Absorption of energy

What is oxidation?

• A type of energy release

• A type of waste management

• A type of physical change

• A type of chemical change

What can initiate a chemical change?

• Cooling down

• Exposure to oxygen

• Adding salt

• Exposure to water

What does waste management involve?

• Only reusing materials

• Only reducing waste

• Collection and disposal of waste

• Only recycling waste

Which of the following is NOT one of the 5Rs?

• Rebuild

• Recycle

• Reuse

• Reduce

What does it mean to reduce waste?

• To reuse all materials

• To recycle everything

• To limit the amount of trash

• To throw away more trash

What does it mean to reuse a material?

• To burn it

• To throw it away

• To use it many times

• To recycle it

What is recycling?

• Repairing damaged items

• Throwing away materials

• Transforming a material into a new one

• Using materials again

What does it mean to recover materials?

• To throw them away

• To take working parts from discarded materials

• To recycle them

• To repair them