Life on Earth vs Life on the Moon

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Which gas relights a glowing splint?

Noble gases

Nitrogen

Carbon dioxide

Oxygen (correct)

What happens to a burning splint when it is put into a test tube of oxygen?

It burns more brightly

It goes out (correct)

It changes color

It turns red

What happens to a glowing splint when it is put into a test tube of oxygen?

It relights (correct)

It turns blue

It goes out

It changes color

What color does hydrogencarbonate indicator turn when exposed to carbon dioxide?

Yellow Signup and view all the answers

What color does limewater turn when exposed to carbon dioxide?

Milky Signup and view all the answers

What color does dry cobalt chloride paper turn when exposed to water or water vapor?

Pink Signup and view all the answers

What is the purpose of the gas lighter in the experiment?

To light the wooden splints Signup and view all the answers

What is the purpose of the hydrogencarbonate indicator in the experiment?

To indicate the presence of carbon dioxide Signup and view all the answers

What is the purpose of the limewater in the experiment?

To indicate the presence of carbon dioxide Signup and view all the answers

What happens to the color of cobalt chloride paper when exposed to hot water?

It turns pink Signup and view all the answers

According to the text, why are there no living things found on the Moon?

The Moon does not have a layer of air Signup and view all the answers

What is air made up of?

Nitrogen, oxygen, carbon dioxide, noble gases, water vapor Signup and view all the answers

What percentage of gases in air is nitrogen?

21% Signup and view all the answers

What percentage of gases in air is carbon dioxide?

0.03% Signup and view all the answers

What are the common gases found in air that can be tested?

Oxygen, carbon dioxide, and water vapor Signup and view all the answers

What properties can be studied to test gases?

Color, smell, burning, reaction with other chemicals, support of burning Signup and view all the answers

What did the discovery of oxygen involve?

Experiments with air Signup and view all the answers

What is the major difference between the Earth and the Moon?

The Earth has a layer of air, but the Moon does not Signup and view all the answers

What is the main reason why living things cannot survive on the Moon?

The Moon does not have a layer of air Signup and view all the answers

What is the Earth surrounded by?

Air Signup and view all the answers

Which gas is used to put out fires in fire extinguishers?

Carbon dioxide Signup and view all the answers

Which gas is used in cutting metals in industry?

Oxygen Signup and view all the answers

What gas is used to create a fog effect on stages?

Water vapour Signup and view all the answers

Which gas is used in advertising lights?

Neon Signup and view all the answers

What gas is used to fill balloons and airships?

Helium Signup and view all the answers

What gas is used to fill light bulbs?

Argon Signup and view all the answers

What gas is used for storing living cells and tissues?

Liquid nitrogen Signup and view all the answers

What gas is used to fill some food packages to prevent spoilage?

Nitrogen Signup and view all the answers

What gas is denser than air and does not support burning?