Chemical and Physical Changes

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What is a chemical change?

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A chemical change is a process where substances combine or break apart to form new substances with different properties. Examples include rusting, burning, and baking.

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What is a physical change?

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A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition. Examples include melting, freezing, and dissolving.

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What happens during photosynthesis?

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During photosynthesis, plants collect sunlight and convert it into food, which is a chemical change.

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What is an example of a chemical change?

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An example of a chemical change is a plant collecting sunlight and turning it into food.

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What kind of change is metal rusting?

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Metal rusting is a chemical change.

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What kind of change is baking a cake?

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Baking a cake is a chemical change because it involves a chemical reaction that transforms the ingredients into a new substance.

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What kind of change is squeezing juice out of an orange?

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Squeezing juice out of an orange is a physical change because the juice is separated from the fruit without changing its chemical composition.

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What kind of change is freezing water into ice cubes?

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Freezing water into ice cubes is a physical change because it changes the state of water from liquid to solid without altering its chemical structure.

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What is an example of a physical change?

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An example of a physical change is taking a glass of water and freezing it by placing it in the freezer.

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What is the difference between a chemical change and a physical change?

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A chemical change results in the formation of new substances, while a physical change does not change the chemical composition of the substance.