Science competition

Which property can be measured using a pan balance?

• Volume

• Length

• Mass

• Density

Which of the following properties is unmeasurable?

• Mass

• Density

• Volume

• Texture

The following tool is used to measure.........

• Mass

• Volume of liquids

• Volume of solids

• Density

The three states of matter are solid, liquid, and gas. Which process changes ice into liquid water?

• Melting

• Freezing

• Condensation

• Evaporation

Which of the following actions would add energy to the pot of water?

• pouring the water into a larger container

• placing the water in the freezer

• heating the water on the stove

• leaving the water outside on a cold night

Adam placed an ice cube on a plate. The ice cube changed from a solid to a liquid. What happened to the amount of matter in the ice cube?

• Decreased

• Increased

• Stay the same

• Doubled

A new substance forms during a chemical change. Which of the following is a not chemical change?

• Ice melting

• Copper getting tarnished

• Burning a paper

• Iron rust

A half-eaten apple is left out and soon turns brown. How do you know a chemical change has taken place?

• Half of the apple has been eaten

• The apple is softer

• The apple had changed color

• The apple is warmer to the touch

Which of these changes is a chemical change?

• Rusting

• Freezing

• Melting

• Mixing

The ability to burn is a chemical property of..............

• Iron

• Wood

• Rock

• Water