Matter

Which of these is a chemical change?

• cooking eggs

• raking leaves

• sewing buttons

• drying laundry

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What type of change does fizzing and bubbling indicate?

• physical

• chemical

• phase change

• substance

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Ben spilled water on the floor but didn't wipe it up. A few hours later, most of the water was gone. What happened to the water?

• The water particles were destroyed.

• The water particles got smaller.

• The water particles became a gas and are now a part of the air.

• The water particles broke down.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

The density of corn syrup is 1.33 g/mL and the density of vegetable oil is 0.91g/mL. Which liquids will float on water?

• both corn syrup and vegetable oil

• corn syrup but not vegetable oil

• vegetable oil but not corn syrup

• neither vegetable oil nor corn syrup

The energy that results from the motion of an object is called?

• kinetic energy

• potential energy

• chemical energy

• nuclear energy

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

What happens when light passes from air into water?

• the light speeds up

• the light continues at the same speed

• the light slows down

• the light forms a mirage

Tags

NGSS.MS-PS4-2

How do the particles of hot air differ from the particles of cold air?

• the particles of hot air move faster than the particles of cold air

• the particles of hot air move slower than the particles of cold air

Tags

NGSS.MS-PS1-4

Which process represents a chemical change?

• a lake freezes over into ice

• vinegar bubbles when baking soda is added

• a metal bar is rolled into a flat sheet

• sand, water, and salt form a mixture

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which statement correctly describes the flow of heat?

• heat does not flow

• heat flows from a warm object to a warmer object

• heat flows from a warmer object to a colder object

Tags

NGSS.MS-PS1-4

If you burn your hand on a hot stove, which type of heat transfer has occurred between your hand and the stove?

• convection

• conduction

• radiation