Amplify Phase Change Vocabulary

A chef finds a sealed container consisting of an ingredient that goes into his restaurant’s secret sauce. The ingredient’s molecules are moving in place. What will happen if the chef causes the ingredient to change phase by transferring energy into it? After the phase change, the ingredient’s molecules will move . . .

• faster, and the ingredient will be a solid.

•  faster, and the ingredient will be a liquid.

•  slower, and the ingredient will be a solid.

•  slower, and the ingredient will be a liquid.

Tags

NGSS.MS-PS1-4

A company uses a substance that is a solid under normal conditions. This substance will be used in extreme conditions, which could make the substance’s molecules move faster and cause a phase change. How would this phase change occur, and how would the molecules of the substance be affected under these extreme conditions? Energy would be transferred . . .

• out of the substance, and its molecules would move away from each other

• out of the substance, and its molecules would move around each other

• into the substance, and its molecules would move around each other.

• into the substance, and its molecules would move in place.

Tags

NGSS.MS-PS1-4

The image above shows information about two different substances in sealed containers. At room temperature, both substances are liquids. A scientist transfers the same amount of energy into both substances. One substance changes phase, but the other does not. Which chemical changed phase, and why did it change?

• Substance A changed phase because its molecules were able to move fast enough to overcome the attraction between them. Its molecules now move away from each other.

•  Substance A changed phase because the weak attraction between its molecules allowed them to move faster. Its molecules now move away from each other.

• Substance B changed phase because the molecules were able to move fast enough to overcome the attraction between them. Its molecules now move away from each other.

•  Substance B changed phase because the strong attraction between molecules made their movement slower. Its molecules now move in place

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Refrigerators are able to transfer energy out of a substance. At first, the substance is a gas. The refrigerator changes the phase of the substance by transferring energy out of it. How does this change affect the substance’s molecules? After the phase change, the molecules move . . .

• slower, and they move away from each other

• slower, and they move around each other.

• faster, and they move around each other.

• faster, and they move in place.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Detectives find two substances at a crime scene. One is a poison, and the other is a cleaning chemical. At room temperature, both substances are liquids. To test the substances, the detectives transfer the same amount of energy into both substances, but only the cleaning chemical changes phase. How is the cleaning chemical different from the poison? The cleaning chemical has a . . .

• weaker attraction between its molecules than the poison. Its molecules now move in place.

• weaker attraction between its molecules than the poison. Its molecules now move away from each other.

• stronger attraction between its molecules than the poison. Its molecules now move away from each other.

• stronger attraction between its molecules than the poison. Its molecules now move around each other.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Two different cars, the Model S and Model T, use different substances in their engines. The image above shows the two substances. At room temperature, both substances are liquids. A car mechanic transferred the same amount of energy out of the two containers, but only one substance changed phase. Which car’s substance changed phase, and how did it change?

• The Model T’s substance changed phase because the attraction of the molecules was able to overcome their slower movement. Its molecules now move in place.

•  The Model T’s substance changed phase because the strong attraction between the molecules made their movement slower. Its molecules now move in place.

• The Model S’s substance changed phase because the weak attraction between the molecules allowed them to move faster. Its molecules now move around each other.

• The Model S’s substance changed phase because the attraction was able to overcome the slower molecules. Its molecules now move away from each other.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

A student left a sealed jar of water outside her home. Water can be a solid, liquid, or gas. When she put it outside, the water was a liquid. Twelve hours later, the water had changed phase and was a soldi. What happened to the water molecules?

• Before the student left, the molecules were moving in place. After, the molecules were moving around each other.

• Before the student left, the molecules were moving around each other. After, the molecules were moving away from each other.

• Before the student left, the molecules were moving around each other. After, the molecules were moving in place.

• Before the student left, the molecules were moving away from each other. After, the molecules were moving around each other.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A cook had a jar containing a sweet food and a jar containing a sour food. The image above shows the sweet and sour foods. At room temperature, both foods are liquids. The same amount of energy was transferred out of both substances. Later, one of the foods had changed phase while the other had not. Which food changed phase, and how did it change?

• The sweet food changed because the molecules were able to move fast enough to overcome the attraction between them. Its molecules now move away from each other.

• The sweet food changed because the strong attraction between molecules made their movement slower. Its molecules now move in place.

• The sour food changed because the weak attraction between molecules let them move faster. Its molecules now move away from each other.

• The sour food changed because the molecules were able to move fast enough to overcome the attraction between them. Its molecules now move in place.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Lily is doing a science experiment with a substance in a sealed jar. At first, the substance’s molecules are moving in place. What will happen to Lily’s substance if she transfers energy into the substance and causes a phase change?

After the phase change, the substance’s molecules will move . . .

• faster, and the substance will be a liquid.

• faster, and the substance will be a gas.

• slower, and the substance will be a solid.

• slower, and the substance will be a liquid.

Tags

NGSS.MS-PS1-4

What is the process called when a solid turns directly into a gas without passing through the liquid phase?

• Sublimation

• Condensation

• Evaporation

• Freezing

Tags

NGSS.MS-PS1-4