Matter 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

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-PS1-4

Over time, iron becomes rust when it combines with water and oxygen. Which type of change must occur for rust to form?

• chemical

• mechanical

• nuclear

• physical

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

Multiple Choice from Item Bank

Which describes a chemical change?

• sugar dissolving in tea

• sunshine warming a sidewalk

• scissors cutting paper into pieces

• acid in the stomach digesting food

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

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

• clouds forming

• sugar dissolving

• water freezing

• a candle burning

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NGSS.MS-PS1-2

What happens to colored sugar when it is added to water?

• The sugar reacts and colors the water.

• The sugar becomes white and the water changes color.

• The sugar evaporates and the water changes color.

• The sugar dissolves and colors the water.

Tags

NGSS.MS-PS1-2

A student placed an egg in a container of vinegar.

Bubbles formed on the shell of the egg, and after three days, the shell was gone. Which observation made by the student indicated a chemical change took place?

• The bubbles were produced as the shell reacted with the acid.

• The vinegar solution remained clear.

• The temperature of the vinegar remained the same.

• The shape of the egg remained oval.

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NGSS.MS-PS1-2

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-PS1-4

NGSS.MS-PS1-5

Mike ripped a piece of paper out of his notebook tearing some of his paper. What type of change has occurred?

• mechanical

• physical

• electrical

• state of matter

Kelly saw a soda can on the ground. She decided to stomp on it and the shape changed. What type of change would this be?

• physical

• chemical

• charge

• cell phone