Physical changes

1. Matter exists in only two states.

• True

• False

Tags

NGSS.MS-PS1-4

2. Changing from one state of matter to another does not involve energy.

• True

• False

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

3. Water starts to boil at 100°C.

• True

• False

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

4. Frost found in a freezer comes from gaseous water evaporating from ice cubes.

• True

• False

Tags

NGSS.MS-PS1-4

5. When heat is added to a liquid, its particles slow down and become more organized.

• True

• False

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

6. Which kind of change alters the form of an object without changing it chemical make up?

• chemical change

• sudden change

• slow change

• physical change

Tags

NGSS.MS-PS1-2

7. Luis set a glass of ice water outside in the sunshine on a warm day. When he looked at the glass 10 minutes later, the contents had changed. Which kind of change took place?

• freezing

• conduction

• chemical change

• physical change

Tags

NGSS.MS-PS1-4

8. Look at this picture showing water in three different states. Notice the boxes showing how the water particles are arranged in each state. In which form is water the least dense?

• solid

• gas

• liquid

• they are all the same

Tags

NGSS.MS-PS1-4

9.  Which material requires more heat to melt?

• a. copper

• b. nitrogen

• c. water

• d. table salt

• e. iron

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

10. What is happening to the particles as water reaches its boiling point?

• a. nothing

• b. the particle slow do down and move closer together

• c. the particles speed up and move away from each other

• d. the particle join together and create a new material with a different chemical make up.

Tags

NGSS.MS-PS1-4