7th Grade Review Chemistry

Placing water in a pot and putting it over a burner will cause the pot to get hot, followed by the water. This is an example of...

• Thermal Energy being transferred

• Thermal Energy being taken out

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-3

At first a substance molecules are moving around each other. Energy is transferred into the substance and causes a phase change. After the phase change are the molecules moving faster or slower?

• Faster

• Slower

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

At first a substance molecules are moving around each other. Energy is transferred into the substance and causes a phase change. Name the new state of matter after the phase change.

• Solid

• Liquid

• Gas

Tags

NGSS.MS-PS1-4

Changeable shape/fixed volume and molecules moving around each other

• solid

• liquid

• gas

Tags

NGSS.MS-PS1-4

Changeable shape/volume and molecules moving away from each other

• solid

• liquid

• gas

Tags

NGSS.MS-PS1-4

Ice in a cup was left outside, the ice melted into a liquid. How were the molecules moving before the phase change?

• moving in place

• moving around each other

• moving away from each other

Tags

NGSS.MS-PS1-4

Ice in a cup was left outside, the ice melted into a liquid. How were the molecules moving after the phase change?

• moving in place

• moving around each other

• moving away from each other

Tags

NGSS.MS-PS1-4

Fixed shape/volume and molecules moving in place

• Solid

• Liquid

• Gas

You have a cup of ice. What happens to the molecules in the ice as the temperature of the ice increases? Are the molecules moving faster or slower?

• faster

• Slower

Tags

NGSS.MS-PS1-4

You have a cup of ice. What happens to the molecules in the ice as the temperature of the ice increases? How is the movement of the molecules changing?

• the molecules are coming closer together and are moving in place

• the molecules start spreading out and start to move around each other

• the molecules really spread out and start to move away from each other

Tags

NGSS.MS-PS1-4