What is the percentage of oxygen in the air?
21%
Oxygen makes up most of the air. True or false?
False, it's nitrogen
What does air consist of?
nitrogen, oxygen, other gases
What is the percentage of other gases in the air?
1%
This movement of air causes rain. True or false?
False, it causes wind
What is it?
Wind turbines
Living organisms need air for respiration. True or false?
True
Air is essential for living organisms. True or false?
True
What is the percentage of nitrogen in the air?
78%
Name 3 types of living organisms
humans, animals, plants
Air is not essential for burning. True or false?
False
30% of air is oxygen. True or false?
False
Wind energy is a process of using wind to make electricity. True or false?
True
Air movement causes wind. True or false?
True
98% of air is nitrogen. True or false?
False
What causes wind?
The movement of air
Wind produces energy by spinning the _____ ________.
wind turbines
We use wind turbines to make wind. True or false?
False
Fire needs _______ to burn
air
Warm air rises as it weighs less than cool air. True or false?
True
Sailboats need wind to move. True or false?
True
Count to ten and get the points
1 2 3 4 5 6 7 8 9 10