Boats and Buoyancy

A small vessel propelled on water by oars, sails or an engine.

• Sink

• Float

• Boat

• Buoyancy

Why did some of the bottles float on the water?

• They were closed

• They were open

• They had air in them

What is a good way to float tinfoil?

• crumble it up

• lay it flat

• roll it into a cylinder

Which item will float on the surface of the water?

• paper

• paper clip

• eraser

• rock

An item that goes below the surface is called a:

• floater

• sinker

• double decker

How can a student sink a cork?

• attach items to the cork that will sink to the bottom

• attach items that will float like the cork

What is important to remember when making a boat to carry a "load"?

• color

• size

• shape

Tags

NGSS.MS-ETS1-1

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In plain water, the egg sank. In salt water the egg floated. How did adding salt to the water change it?

• it made the water less dense

• it made the water more dense

The weight a boat can carry is call a

• ship

• boat

• load

Which type of propulsion did you use when you made your boat? Gravity, balloon, elastic, or sail.

Tags

NGSS.MS-PS2-1