Unit three Atmosphere grade 6 Mrs/Abeer samir

This apparatus used to prepare...... Gas

• Oxygen

• Carbon dioxide

• Nitrogen

This apparatus used to prepare..... Gas

• Oxygen

• Carbon dioxide

• Nitrogen

Mixture of different gases surrounding the earth

• Temperature

• Atmosphere

• Oxygen

Atmosphere is attracted to earth by

• Mass

• Weight

• Gravity

Protects earth from harmful rays which come from outer space

• Atmosphere

• Oxygen

• Nitrogen

Adjust temperature of earth

• Nitrogen

• Atmosphere

The most abundant gas in atmosphere

• Oxygen

• Carbon dioxide

• Nitrogen

Nitrogen represents.......... %

• 21

• 0.03

• 78

Oxygen represents.........%

• 78

• 21

• 1

Oxygen represents........ Of air volume

• 1/2

• 1/5

• 1/6