Physical and Chemical Changes

Front

What type of change can be easily reversed?

Back

physical change

Front

Which of the following is an example of a physical change? a bike rusting, toast burning, butter melting, food spoiling

Back

butter melting

Front

Which example is a physical change but NOT a change of state of matter? Options: logs burning, water freezing into ice cubes, candle wax melting, paper being cut.

Back

paper being cut

Front

Which of the following is an example of a chemical change?

• a penny tarnishing
• a mirror being scratched
• hair being cut
• water being boiled

Back

a penny tarnishing

Front

What is the best way to separate a mixture of sugar, sand, and water?

Back

Filter the sand from the sugar and water, then heat the mixture, causing the water to evaporate.

Front

A student is investigating changes with common classroom materials. What conclusion can be made about the investigations?

Back

The paperclip shows evidence of a physical change by changing the shape of the object, whereas the pencil eraser and hole puncher show evidence of a physical change by changing the size of the object.

Front

Based on the experiment where a 5th grade student adds vinegar to baking soda, is the change physical or chemical?

Back

A chemical change occurred because there was formation of bubbles when the materials reacted to each other.

Front

Which of the following is a correct statement about the investigations?

Back

Situations 1 and 3 are physical changes because no new substances are formed.

Front

Which statement is true about the experiments conducted by three students at Mountain Park Elementary regarding chemical changes?

Back

Student B was the only one to create an experiment with evidence of a chemical change. She created a new substance, a gas.

Front

Which argument BEST supports the student’s claim that changing the temperature of the water causes a physical change that turns water into ice?

Back

The ice cube is melting in the student’s hand since the hands are much warmer than the ice. Heat is being added to the ice, which causes the particles to move faster.