6th
grade

Science

74%

accuracy

plays

2 years

Show Answers

See Preview

1. Multiple Choice
10 seconds
1 pt
What is the percentage of Nitrogen in air?
72%
75%
78%
79%
2. Multiple Choice
20 seconds
1 pt
Where is oxygen present?
Wind
Water
Soil
All of the above
3. Multiple Choice
10 seconds
1 pt
Which gas is needed for respiration?
Nitrogen
Oxygen
Carbon Dioxide
Hydrogen
4. Multiple Choice
10 seconds
1 pt
Which gas is released during photosynthesis?
Carbon Dioxide
Nitrogen
Oxygen
None of the above
5. Fill in the Blank
20 seconds
1 pt
The layer of air around the Earth is called the _______. (write the answer in all lowercase)
6. Multiple Choice
10 seconds
1 pt
People wear masks to protect their face from?
Smoke
Dust
Germs
All of the above
7. Multiple Choice
10 seconds
1 pt
What is required for photosynthesis?
Sunlight
Heat
Water vapor
Oxygen
8. Multiple Choice
10 seconds
1 pt
What do animals exhale?
Carbon Dioxide
Oxygen
Nitrogen
None of the above
9. Multiple Choice
20 seconds
1 pt
What is the lightest gas on Earth’s atmosphere?
Helium
Hydrogen
Oxygen
Carbon Dioxide
10. Multiple Choice
10 seconds
1 pt
What gas is present in balloons?
Carbon Dioxide
Hydrogen
Oxygen
Helium
11. Multiple Choice
10 seconds
1 pt
What is a major part of air which doesn’t support a burning candle?
Nitrogen
Oxygen
Helium
None of the above
Answer choices
Tags
Answer choices
Tags
Explore all questions with a free account
Already have an account?