K S M D R

Naveen puts some ice cubes in a glass of water. He leaves his glass on the counter. When he returns, the ice is gone

Which statement is true?

• Naveen observes a mixture form.

• Naveen observes a solution form.

• Naveen observes a chemical reaction.

• Naveen observes a physical change.

Physical changes happen when a substance changes, but its composition doesn’t. Which of the following is a physical change?

• burning

• freezing

• decaying

• rusting

Ms. Royce’s students are having an end-of-the-year party. They go to a nearby park on a sunny day. Which party activity describes a chemical change?

• climbing the monkey bars

• cooking hamburgers on a grill

• playing hide-and-seek

• putting a hot dog and mustard on a bun

Mohammed mixes chocolate powder in her milk. he notices that the chocolate powder dissolves. Based on his observations, what can Mohammed conclude?

• The chocolate powder is a solute.

• The chocolate powder is a solvent

• The chocolate powder is a solution

• The chocolate powder is a chemical.

Which of the following is a physical change?

• Burning

• Evaporating

• Rusting

• Cooking

Which set of steps would describe the changes in state of an ice cube that is left outside in the hot sun?

• solid➔gas➔liquid

• solid➔liquid➔gas

• liquid➔solid➔gas

• liquid➔gas➔solid

Cherie changed water from a liquid to a solid. What did she do to the water?

• She froze the water.

• She melted the water.

• She condensed the water.

• She evaporated the water.

Which process listed below changes water vapor (a gas) into liquid water?

• melting

• freezing

• evaporation

• condensation

1. A change in matter in which a new substance is not formed is a …………………………

Ivan gets a new silver bracelet. After a few days, the bracelet tarnishes and leaves a black ring on Ivan’s arm. What type of change does the bracelet undergo?

• a chemical change

• a physical change

• a matter change

• a property change