Exploring Air and Space

What is air made of?

• Air is made of hydrogen and helium only.

• Air consists solely of water vapor.

• Air is composed of only carbon monoxide and sulfur dioxide.

• Air is made of nitrogen, oxygen, argon, carbon dioxide, and trace gases.

Can we see air?

• Air can be seen with special equipment.

• Yes, we can see air.

• No, we cannot see air.

• Air is visible under certain conditions.

Where do we find air?

• Under the ground

• In the Earth's atmosphere.

• In the ocean

• Inside a building

What do we breathe in?

• Nitrogen

• Air

• Carbon Dioxide

• Water

Is air all around us?

• Air is not necessary for life.

• Yes, air is all around us.

• Air is only found in certain places.

• Air is a solid substance.

What happens to air when we go up high?

• Air becomes denser and has higher pressure at higher altitudes.

• Air remains the same regardless of altitude changes.

• Air becomes less dense and has lower pressure at higher altitudes.

• Air becomes warmer and expands at higher altitudes.

What is air pressure?

• Air pressure is the temperature of the air.

• Air pressure is the speed of wind in a given area.

• Air pressure is the amount of oxygen in the atmosphere.

• Air pressure is the force per unit area exerted by the weight of air above.

How does air pressure help us?

• Air pressure causes earthquakes.

• Air pressure helps us breathe, influences weather, and supports various mechanical systems.

• Air pressure has no effect on human health.

• Air pressure is only important for flying.

What happens to a balloon in space?

• A balloon shrinks and becomes denser in space.

• A balloon floats indefinitely without changing size in space.

• A balloon remains unchanged and retains its shape in space.

• A balloon expands and may burst due to low atmospheric pressure in space.

Why do astronauts need air in space?

• To power their spacecraft

• To keep their suits clean

• Astronauts need air to breathe and survive in space.

• To maintain a comfortable temperature