HMH Into Science Unit 2, Lesson 2

Which object has the property of conducting electricity?

• Metals

• Glass
• Plastic
• Wood

Which of the following is an example of a solution?

• Lemonade

• Melted Ice Cube

• Oil
• Trail Mix

When a solid changes into a liquid, energy has been ______

• added

• removed

Tags

NGSS.MS-PS1-4

When a liquid changes to a solid, energy has been ________

• added

• removed

Tags

NGSS.MS-PS1-4

Once sugar and water have been mixed together and the sugar has dissolved, how can the materials be separated again?

• Freezing the water to form solid sugar.

• Mixing the solution with oil to separate them.

• Evaporating the water.

• It is impossible to separate the materials

Tags

NGSS.MS-PS3-4

A liquid changing to a gas is called...

• condensation
• melting

• evaporation

• precipitation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A solid changing to a liquid is called ...

• condensation
• evaporation

• freezing
• melting

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A liquid changing to a solid is called...

• melting
• evaporating
• condensing
• freezing

Tags

NGSS.MS-PS1-4

Which of the following is an example of a physical change?

• Burning wood

• Rusting iron

• Melting ice

• Cooking an egg

What happens to the particles of a substance as it freezes?

• They move faster

• They move slower

• They stay the same

• They disappear

Tags

NGSS.MS-PS1-4