Physical and Chemical Change Spiral 2s

What is a physical change?

• A change that results in the formation of new substances

• A change that affects the form of a chemical substance, but not its chemical composition

• A change that involves the breaking of chemical bonds

• A change that is always irreversible

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DOK Level 1: Recall

What is a chemical change?

• A change that only affects the physical properties of a substance

• A change that involves the formation of new chemical substances

• A change that can be easily reversed

• A change that does not involve energy

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DOK Level 1: Recall

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

• Burning wood

• Melting ice

• Rusting iron

• Baking a cake

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DOK Level 1: Recall

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

• Freezing water

• Dissolving sugar in water

• Digesting food

• Cutting paper

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DOK Level 1: Recall

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

• Change in shape

• Change in temperature

• Change in size

• Change in state

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DOK Level 1: Recall

Which of the following is NOT an indicator of a chemical change?

• Production of gas

• Formation of a precipitate

• Change in color

• Change in texture

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DOK Level 1: Recall

What is a key difference between physical and chemical changes?

• Physical changes are always irreversible, while chemical changes are reversible

• Physical changes involve energy, while chemical changes do not

• Physical changes do not form new substances, while chemical changes do

• Physical changes always produce heat, while chemical changes do not

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DOK Level 1: Recall

Which of the following processes is a physical change?

• Cooking an egg

• Evaporating water

• Burning paper

• Rusting metal

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DOK Level 1: Recall

Which of the following processes is a chemical change?

• Boiling water

• Melting butter

• Fermenting grapes

• Shredding paper

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DOK Level 1: Recall

What happens to the molecules in a substance during a physical change?

• They are rearranged to form new substances

• They remain the same but change in state or appearance

• They are destroyed

• They form new chemical bonds

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DOK Level 1: Recall