Up, up and away....!

What makes the balloon inflate?

• Hot Air Force

• Cold Air Force

Which is lighter?

• Cold Air

• Hot Air

Force from the blowing hot air, will cause the balloon to...

• inflate

• deflate

When the balloon is inflated, it will start to....

• rise

• lower

How would gravity affect a hot air balloon?

• When there is less hot air, gravity takes over and brings the balloon down to the ground.

• Where there is less cold air, gravity takes over and brings the balloon down to the ground.

The pilot of a hot air balloon can only control...

• the release of hot air

• the release of cold air

The pilot cannot control the direction of the balloon. The balloon moves along according to the force of...

• weather

• wind currents

If there is less and less hot air released, what will weigh down the balloon?

• cold air

• wind currents

• gravity

• force