5th grade chemical and physical change

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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.

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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.

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What is an example of a chemical change?

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Rotting fruit, rusting iron, or burning wood are examples of chemical changes.

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What is an example of a physical change?

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Melting ice, boiling water, or dissolving sugar in water are examples of physical changes.

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What is flammability?

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Flammability is a chemical property that describes how easily a substance can catch fire.

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What is a sign that a chemical reaction has occurred?

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Formation of a gas, change in color, or production of heat are signs of a chemical reaction.

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What happens when baking soda and vinegar are mixed?

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They undergo a chemical change, producing carbon dioxide gas and creating fizz.

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What is thermal conductivity?

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Thermal conductivity is a physical property that measures how well a substance conducts heat.

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What is density?

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Density is a physical property that describes how much mass is contained in a given volume of a substance.

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What is malleability?

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Malleability is a physical property that describes a material's ability to be shaped or deformed without breaking.