Math and Science - sample - EASY

What physical property helps you determine if a material will float or sink?

• Density

• Mass

• Volume

• Length

Which of the following is a good conductor of electricity?

• rubber

• copper

• plastic

• wood

What do you call a material that changes shape but not volume?

What is the unit used to measure mass in the metric system?

• Celcius

• Newton

• second

• gram

Why does ice float on water?

• water is impure

• ice is less dense than water

• ice is more dense than water

• ice is dense

How does temperature affect the movement of particles in matter?

• Higher temperatures increase particle movement.

• Lower temperatures increase particle movement.

• particles move if all have the same molecules

• particles always move

What property of metals makes them useful for cooking pots?

• tenacity

• malleability

• thermal conductivity

• ductility

What is viscosity?

• a metal's ability to resist breaking or fracturing when subjected to tensile forces

• tension of the surface film of a liquid caused by the attraction of the particles in the surface layer

• The resistance of a liquid to flow.

• material's ability to be deformed or stretched into a wire or thin shape without breaking

How is the boiling point of a substance related to its purity?

• A pure substance has a fixed boiling point; impurities alter it.

• All have the same boiling point even with impurities.

• Impurities makes the substance clear

• The substance will not boil

Which is an example of a reversible change.

• burning a match

• rusting of iron

• Baking a cake

• Melting ice