Sink vs. Float

Which statement is true?

• Every big object sinks and every small object floats.

• An object will sink or float based on density.

• Heavy objects always sink.

Boats use anchors to stay in one place.

What is an important property of an anchor?

• It needs to float in water.

• It needs to sink in water.

• It needs to bend.

Tags

NGSS.MS-ETS1-1

Life vests are meant to keep you safe in the water.

What is an important property of a life vest?

• It must float in water.

• It must sink in water.

• It must be smooth.

Which of these balls will most likely float on water?

• a solid metal ball

• a 20-pound bowling ball

• a beach ball

Which of these objects will sink?

• a leaf

• car keys

• an ice cube

Which of these objects will sink?

• a feather

• a lego

• a metal spoon

Tags

NGSS.5-PS1-3

Which of these objects float?

• a brick

• a pencil

• a marble

Tags

NGSS.5-PS1-3

Which of these objects float?

• an anchor

• scissors

• a light bulb

Tags

NGSS.5-PS1-3

Which material could you use to build a boat that floats?

• paper towels

• wood

• cardboard

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

What is one reason that it is important to understand whether an object will sink or float?