Physical and chemical changes

Front

What is the best evidence that an exothermic reaction occurred in the beaker? Options: color change, the temperature increased, odor, mass decreased

Back

the temperature increased

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Front

What evidence in the picture indicates that a chemical change occurred? Options: temperature change, odor, gas

Back

gas

Tags

NGSS.MS-PS1-2

Front

What state of matter is image 3?

solid

,

liquid

,

gas

Back

gas

Tags

NGSS.MS-PS1-4

Front

Heat will continue to transfer between two areas or objects until

Back

both objects are the same temperature

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

Table salt is edible, therefore the elements that make up table salt must be edible.​    True or False

Back

false

Front

How does thermal energy move?

Back

warmer to cooler objects

Tags

NGSS.MS-PS1-4

Front

Hot air rises because it is ___________ dense than cooler air.

Back

less

Tags

NGSS.MS-PS1-4

Front

Why did Mrs. Logan's m&m's begin to melt after she carried them home on a hot day?

Back

heat transferred from the environment to the candy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Front

Which of the following is true? Aluminum is a conductor of heat. Plastic is an insulator (but not as good as foam). Plastic is a conductor. Aluminum is an insulator. Both aluminum and plastic are good conductors of heat. Both aluminum and plastic are insulators.

Back

Aluminum is a conductor of heat. Plastic is an insulator (but not as good as foam).

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Front

Styrofoam is best for serving hot cocoa and a milkshake because foam is a(an) ________________.

Back

insulator

Tags

NGSS.MS-PS3-3