5.P.2.3

One type of cold remedy is an effervescent tablet that breaks down in water. When the tablet is placed in water, it forms gas bubbles. In this example, the formation of a gas

• is a physical property.

• occurs when adding water to acid.

• is a sign of a chemical change.

• occurs when the water boils.

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

Physical and chemical properties can be used to classify substances. Which of these shows a chemical property?

• Silver melts.

• Magnesium burns.

• Sulfur is a yellow solid.

• Aluminum conducts heat.

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

• clouds forming

• sugar dissolving

• water freezing

• a candle burning

Tags

NGSS.MS-PS1-2

Which is a chemical change?

• frying an egg

• boiling water

• breaking a glass cup

• crushing a piece of bread

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which action causes a chemical change?

• leaves dropping from a tree

• leaves blowing in the wind

• leaves being burned in a fire

• leaves being crushed into pieces

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

NGSS.MS-PS1-4

Which is a way that a piece of paper can go through a chemical change?

• fold the paper in half

• soak the paper in water

• burn the paper with fire

• cut the paper with scissors

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which describes a chemical change?

• sugar dissolving in tea

• sunshine warming a sidewalk

• scissors cutting paper into pieces

• acid in the stomach digesting food

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which property of sugar remains after sugar is dissolved in water?

• color

• taste

• shape

• texture

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NGSS.MS-PS1-2

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

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which example shows a new substance being formed?

• a candle burning

• a shoelace being tied

• a pipe being cut in half

• a block of ice melting

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5