p.2.3

Tonya observes the mixture of two clear liquids in a container. Which observation would indicate a new substance is formed?

• A. The mixture remains at a constant temperature.

• B. A gas forms after the liquids are mixed.

• C. One liquid floats on top of the other.

• D. The mixture does not change color.

Tags

NGSS.MS-PS1-2

Which activity does not result in the formation of a new material?

• A. baking a cake

• B. boiling water

• C. lighting a match

• D. rusting bike chain

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

One gram of white baking soda is poured into a beaker containing 20ml of (yellow) apple cider vinegar. It becomes bubbly and foams out the top of the beaker. What has taken place?

• A. A new substance has been made.

• B. The temperature changed to make them boil.

• C. A change occurred as they were filtered into the beaker.

• D. The white vinegar is making the yellow baking soda change colors

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which best describes an activity that does not result in the formation of a new material?

• A. baking a pie

• B. molding clay

• C. rusting a nail

• D. cooking an egg

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which is an example of a change where a new substance is formed?

• A. salt dissolving in water

• B. a piece of paper burning

• C. wax crayons melting

• D. a cup of ice freezing

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which is not an example of a change where a new substance is formed?

• A. ice melting into water

• B. fire burning a sheet of paper

• C. a nail rusting after being outside

• D. a penny turning green when placed in chemical

Tags

NGSS.MS-PS1-2

Which statement explains why boiling water is not an example of a process where a new substance is formed?

• A. The result is steam.

• B. Heat is added.

• C. The boiling water has different properties.

• D. The boiling water and steam are still water.

Tags

NGSS.MS-PS1-4

Nick and Allison are conducting experiments in science class. In which experiment will the students most likely observe a new material being formed?

• A. melting ice in containers at different temperatures

• B. dissolving different amounts of salt into water

• C. boiling the same amount of different liquids

• D. burning different types of paper

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which change is most likely to produce a new substance?

• A. a piece of paper burning

• B. sugar dissolving into water

• C. glass breaking into many pieces

• D. water boiling and creating steam

Tags

NGSS.MS-PS1-2

Gloria’s family built a wood fire in the fireplace. The next day, Gloria noticed that there was no wood left in the fireplace, only ashes. Which best explains this?

• A. Wood is separated from ashes as it burns.

• B. Wood becomes a new substance as it burns.

• C. Ashes have the same properties as wood.

• D. Ashes are the same substance as wood.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5