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- 1. Multiple Choice
Which example best describes a chemical change?wax meltingan apple turning browna piece of paper being cut into small pieces - 2. Multiple ChoiceKim lost her hammer outside. When she found it a few months later, some parts of the metal were covered with flaky, brown rust. Which type of change occurred when rust formed on the hammer?chemicalelectricalthermalphysical
- 3. Multiple ChoiceWhich best explains why burning leaves is a chemical change?The leaves emit light during the change.The temperature of the leaves increases.The shape of the leaves changes.The leaves turn to ashes.
- 4. Multiple ChoiceWhich is a chemical change?frying an eggboiling waterbreaking a glass cupcrushing a piece of bread
- 5. Multiple ChoiceTonya observes a mixture of two clear liquids in a container to see if a chemical change occurs. Which observation demonstrates the mixture is undergoing a chemical change?The mixture remains at a constant temperature.A gas forms after the liquids are mixed.One liquid floats on top of the other.The mixture does not change color.
- 6. Multiple ChoiceRamano is burning wood in a bonfire. What change is occurring during the fire?The wood is dissolving into liquid.The wood is gaining more mass.The wood is dissolving into a liquid.The wood is releasing a gas as smoke.
- 7. Multiple ChoiceWhich example best describes a physical change?baking a pieburning a candlemaking a paper airplanelighting a match
- 8. Multiple Choice
Which of these is an example of a new substance being formed?
a nail rusting
a wall being painted
water changing to steam
paper being folded
- 9. Multiple Choice
Which is an example of a different substance being formed?
glass breaking
metal melting
water freezing
wood burning
- 10. Multiple Choice
Examine the diagram. What would a teacher most likely use this image to explain?
Heat being added and taken away is causing physical changes in water.
Air being added and taken away is causing physical changes in water.
Heat being added and taken away is causing chemical changes in water.
Air being added and taken away is causing chemical changes in water.
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