Phase Change CJA 25-26 - States of Matter

What picture shows the particles of a solid?

• A

• B

• C

Which picture shows how the particles in a gas are arranged?

• A

• B

• C

Which picture shows how the particles in a liquid are arranged?

• A

• B

• C

Which of the following best describes a solid?

• matter is made of atoms so tightly packed together that they cannot move around

• takes the shape and volume of its container

• has a definite volume, but takes the shape of its container

Which of the following descriptions best describe a liquid

• takes the shape and volume of its container

• matter is made of atoms so tightly packed together that they cannot move around

• has a definite volume, but takes the shape of its container

Which of the following descriptions best describes a gas?

• has a definite volume, but takes the shape of its container

• takes the shape and volume of its container

• matter is made of atoms so tightly packed together that they cannot move around

Tags

NGSS.MS-PS1-4

Which model best represents a change that results from adding heat energy to a substance in a jar?

• Diagram A

• Diagram B

• Diagram C

• Diagram D

Tags

NGSS.MS-PS1-4

The models below represent the particles of one substance in different phases of matter. Select the answer that best describes the relative thermal energy among the states of matter.

• Solid is less than liquid, which is less than gas.

• Solid is the same as liquid, which is less than gas.

• Solid is the same as liquid, which is the same as gas.

• Solid is greater than liquid, which is greater than gas.

Tags

NGSS.MS-PS1-4

A car mechanic had a sealed bucket containing a substance in the gas phase. She left the bucket outside over the weekend. When she returned, the substance had changed phase, and the substance was in the liquid phase. What happened to the molecules of this substance?

• Before the mechanic left, the molecules were moving away from each other. When she returned, they were moving around each other.

• Before the mechanic left, the molecules were moving around each other. When she returned, they were moving in place.

• Before the mechanic left, the molecules were moving around each other. When she returned, they were moving away from each other.

• Before the mechanic left, the molecules were moving in place. When she returned, they were moving around each other.

Tags

NGSS.MS-PS1-4

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