Physical Science: Matter and Energy Quiz

Which shows that matter may be changed but the weight will not change?

• When comparing markers, 20 thin markers will fit in the same box as 10 regular.

• A clay ball that is 5 cm long is then rolled into a snake 10 cm long.

• A candle that has only burned for 30 seconds should still weigh the same.

• Some papers weigh less after they have burned.

Which is an example of a different substance being formed?

• Water freezing

• A glass breaking

• Metal melting

• Wood burning

A pot is heated on a stove. Which process causes the metal handle of the pot to also become hot?

• Convection

• Radiation

• Conduction

• Combustion

Which would most likely turn gas into a liquid?

• Cooling

• Boiling

• Warming

• Freezing

Samantha and John were each given a ball of clay of the same weight. Both students used all of their clay to make an object. Samantha rolled hers into a ball. John made a long, skinny rope. What is the weight of the clay figures now?

• There is no way of knowing which one weighs more.

• The figures would be equal in mass.

• John’s weighs more because it is long.

• Samantha’s weights more because it is round.

Which is the best example of a physical change?

• An apple turning brown

• Ice melting

• Bread baking

• Candle burning

Which is an example of convection?

• A stove heating a metal pan

• The sun heating Earth’s surface

• A light bulb giving off heat

• Hot air rising, and sinking as it cools

A student notices that an inflated balloon gets larger when it is warmed by a lamp. Which best describes the mass of the balloon as a result of this change?

• The mass of the balloon stays the same because the gas inside the balloon still has the same mass after it warms up.

• The mass of the balloon increases because the temperature of the balloon has increased.

• The mass of the balloon increases because the size of the balloon has increased.

• The mass of the balloon stays the same because warming decreases the mass enough to cancel out the effect of increasing the size.

Which of the following activities results in the formation of a new material?

• Chopping wood

• Slicing a pizza

• Baking a cake

• Mixing sand and water

Bill stands in a swimming pool and notices that the water around his feet is a lot cooler than the water near the surface. Which process causes this difference in temperature?

• Convection

• Evaporation

• Radiation

• Conduction