When balloons float they have helium in it. Helium is not air, but a gas. It's lighter than air, which makes it float.
helium is less dense than air. :) so helium will float better than air
Helium is lighter than air. so balloons filled with helium will float in air
Helium is lighter than air. so balloons filled with helium will float in air. warming will make them float or rise up faster.
Helium is lighter than air.
Because helium is lighter than air.
Helium is lighter than air. Hence balloons or blimps filled with helium will float.
with the gas helium or fire
because helium is lighter than air
The balloons that float usually contain helium in them, which is lighter than air. This enables the balloon to float.
bcoz helium is lighter than air
Helium is lighter than air. So balloons or air ships filled with helium will float.