1.

Styrofoam is made with 98% air and 2% styrene, which is from petroleum oil. It is useful in society for its light weight, insulation abilities and ease at molding for packaging.

Which term best described Styrofoam?

natural

raw material

composite

conductor

2.
Bryan is designing part of a computer. He needs to create a component that will carry an electric current from one part of the computer to another. Which material would be the best choice for this component?

rubber

copper

glass

plastic

3.
What term is the measurement of power being put into an electrical circuit?

conductivity

electron

current

voltage

1 answer

1. composite
2. copper
3. current