Floating and Sinking Objects

What does it mean if an object floats in water?

• It stays on top of the water.

• It goes to the bottom of the water.

• It disappears in the water.

• It changes colour in the water.

Match the following objects with what happens when they are placed in water.

Groups:

(a) Float

,

(b) Sink

• Glass

• Plastic bottle

• Shuttlecock

• Coin

• Bowling ball

• Balloon

When something sinks in water, it (a)   .

• It stays on top of the water.
• It goes to the bottom of the water.
• It floats in the air.
• It makes bubbles in the water.

Why do some objects float in water?

• Because they are heavier than water.

• Because they are lighter than water.

• Because they are the same weight as water.

• Because they are made of metal.

Kate and Declan are watching ships at the harbor. Kate asks, "Why do ships float?"

• Because they are heavy

• Because they have air in them

• Because they are small

• Because they are colorful

During a school trip, Chervelle and Declan noticed that when water gets inside ships, (a)   .

• they fly
• they sink
• they glow
• they disappear

Does this thing float or sink?

• Float

• Sink

Does this thing float or sink?

• Float

• Sink

Does this thing float or sink?

Tags

NGSS.3-PS2-1

Does this thing float or sink?

• Float

• Sink