Material Science

What is the property of a material that allows it to be stretched without breaking?

• Tensile strength

• Brittleness

• Elasticity

• Flexibility

In which state of matter do particles have the most energy and move freely?

• Plasma

• Solid

• Liquid

• Gas

What is a mixture?

• A mixture is a substance that cannot be separated into its components.

• A mixture is a substance that is always in a gaseous state.

• A mixture is a single substance with no other substances mixed in.

• A mixture is a substance made by mixing other substances together.

Give an example of a physical change.

• Melting ice into water

• Burning paper into ashes

• Freezing water into ice cubes

• Boiling water into steam

How can we separate a mixture of sand and water?

• Evaporation

• Sublimation

• Decantation

• Filtration

What is the difference between a physical change and a chemical change?

• Physical changes involve a change in color, while chemical changes do not.

• Chemical changes are reversible, while physical changes are not.

• Physical changes involve a change in state, while chemical changes do not.

• The main difference is that physical changes are reversible, while chemical changes are not.

Name a material that is a good conductor of electricity.

• Gold

• Aluminum

• Rubber

• Copper

What is the state of matter of ice?

• Liquid

• Gas

• Plasma

• Solid

What happens to a material when it undergoes a chemical change?

• It remains the same

• It turns into a gas

• It transforms into a new substance with different properties.

• It disappears completely

How is glass made?

• By evaporating sand, soda ash, and limestone at room temperature.

• By mixing sand, soda ash, and limestone with water.

• By freezing sand, soda ash, and limestone together at low temperatures.

• By melting sand, soda ash, and limestone together at high temperatures.