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WorksheetsChanges in Materials
Total questions: 14
Worksheet time: 10mins
When does a physical change occur?
When molecules combine to form a compound
When a new element is created
When the size, shape, or state of matter changes
When elements combine to form a molecule
Which type of change can be reversed?
a physical change
a chemical change
a molecular change
an electric change
Which of the following describes a chemical change in a material?
Freezing of water into ice.
Cutting a piece of fruit into slices.
Burning of a candle.
Dissolving salt in water.
Which of the following describes a physical change in a material?
A metal nail rusting over time.
Cutting a piece of cloth into smaller pieces.
Burning of a piece of paper.
Baking a cake in the oven.
Which of the following is an example of a physical change?
Photosynthesis in plants.
Decomposition of organic matter.
Melting of an ice cream cone.
Cooking an egg.
Stepping on a bag of potato chips would cause which type of change?
mechanical
thermal
physical
chemical
Which of the following is an evidence that a chemical change has taken place?
A gas forms when the change takes place.
The substance is smaller that it was before the change took place.
The substance has been shaken up.
The substance looks the same as it did before the change took place.
Which of the following represents a chemical change?
Shaping clay into a sculpture.
Hammering a nail into a piece of wood.
Mixing oil and vinegar to make a salad dressing.
Rotting of fruits.
Which among the following change is caused by the application of heat?
Rusting of iron
Apple oxidation
Rotting of banana
Melting of ice
Which among the following change is caused by exposure to oxygen?
Molding of clay
Browning of apple
Cutting paper
Dissolving sugar
Melting chocolate is a chemical change
True
False
Burning wood is a physical change.
True
False
Breaking a glass cup is a physical change.
True
False
What is the difference between a physical change and a chemical change?
