Grade 6 Science And Technology – Composition Of Air Quiz
1. Name three components of air
2. ____takes the greatest component of air
3. Which of the following gases supports combustion?
4. Which gas is used in hospitals to support patients with difficulty in breathing?
5. ____ gas is used in preservation of drinks
6. ____ gas is used by leguminous plants to make their proteins
7. Which gas makes up the majority of air?
Nitrogen makes up about 78\% of Earth's atmosphere, making it the most abundant gas.
8. Which gas is essential for respiration?
Oxygen is necessary for the process of respiration in living organisms, allowing them to extract energy from food.
9. Which gas is known as a greenhouse gas?
Carbon Dioxide is a greenhouse gas that contributes to global warming by trapping heat in the Earth's atmosphere.
10. Which gas is used by plants for photosynthesis?
Plants use carbon dioxide during photosynthesis to produce glucose and oxygen, a process vital for their growth.
11. Which gas is used in carbonated drinks to make them fizzy?
Carbon Dioxide is dissolved in carbonated drinks to create the bubbles that give them their sparkling texture.
12. Which gas is used in breathing exercises to increase oxygen levels in the body?
Breathing exercises often involve breathing in higher levels of oxygen to improve lung function and increase oxygen intake in the body.
13. Which gas is used by scuba divers in their tanks for underwater breathing?
Scuba divers use tanks filled with compressed oxygen to breathe underwater, allowing them to stay submerged for extended periods.
14. Which gas is known for its role in air pollution and respiratory health issues?
Nitrogen Dioxide is a harmful gas produced by vehicle emissions and industrial activities, contributing to air pollution and causing respiratory problems.
15. Which gas is used in welding and cutting metals due to its high reactivity?
Acetylene gas is commonly used in welding and metal cutting processes due to its high reactivity and ability to produce a hot flame.
16. Which gas is commonly found in light bulbs to prevent the filament from oxidizing?
Argon gas is often used in light bulbs to create a controlled environment that prevents the filament from burning out due to oxidation.
17. Which gas makes up the largest percentage of air?
Nitrogen makes up about 78% of the air we breathe, making it the largest component.
18. Which gas is essential for humans to breathe in order to survive?
Oxygen is necessary for humans to breathe in order to sustain life and carry out cellular respiration.
19. Which gas is known for its role in causing global warming when present in excess?
Excess carbon dioxide in the atmosphere is a major contributor to global warming and climate change.
20. Which gas is used in balloons to make them float in the air?
Helium is a lighter-than-air gas that is commonly used to fill balloons and make them float.
21. Which gas is commonly used in carbonated drinks to add fizz?
Carbon dioxide is dissolved in carbonated drinks to create the bubbles and fizz when the drink is opened.
22. Which gas is used by plants during photosynthesis to produce oxygen?
Plants take in carbon dioxide during photosynthesis and release oxygen as a byproduct, which is essential for other living organisms.
23. Which gas can be harmful to humans in high concentrations?
High concentrations of carbon dioxide can be harmful to humans as it can displace oxygen in the air and lead to asphyxiation.
24. Which gas do humans exhale when they breathe out?
When humans exhale, they release carbon dioxide as a waste product of cellular respiration.
25. Which gas is used in scuba tanks for divers to breathe underwater?
Scuba tanks are filled with compressed air that contains a higher percentage of oxygen to allow divers to breathe properly underwater.
26. Which gas is found in the ozone layer and protects the Earth from harmful UV radiation?
Ozone is a form of oxygen found in the ozone layer that helps protect the Earth from harmful ultraviolet (UV) radiation.
27. Which gas is responsible for the blue color of the sky?
Nitrogen molecules in the air scatter sunlight in a way that makes the sky appear blue to our eyes.
28. Which gas is commonly used in fire extinguishers to displace oxygen and put out fires?
Carbon dioxide fire extinguishers work by displacing oxygen around the fire, effectively suffocating it and putting it out.
29. Which gas is used in medical procedures to induce anesthesia?
Nitrous oxide, also known as laughing gas, is used in medical procedures to induce anesthesia and reduce pain perception.
30. Which gas is produced by burning fossil fuels and contributes to air pollution?
Burning fossil fuels releases carbon dioxide into the atmosphere, which is a major contributor to air pollution and climate change.
31. Which gas is emitted by cars and trucks and is a major component of vehicle exhaust?
Carbon monoxide is a poisonous gas emitted by vehicles that can be harmful to human health when inhaled in high concentrations.
32. Which gas is commonly used in welding to shield the molten metal from reacting with the surrounding air?
Argon is an inert gas commonly used in welding to create a shield around the molten metal and prevent oxidation during the welding process.
33. Which gas is used in food packaging to extend the shelf life of perishable items?
Nitrogen is often used in food packaging to displace oxygen and slow down the process of food spoilage, extending the shelf life of perishable items.
34. Which gas is found in the Earth's atmosphere in trace amounts but is a potent greenhouse gas?
Methane is a greenhouse gas that is much more potent than carbon dioxide, although it exists in trace amounts in the Earth's atmosphere.
35. Which gas is commonly used in refrigeration and air conditioning systems?
Freon is a type of refrigerant gas that is commonly used in refrigeration and air conditioning systems to cool and cycle air.
36. Which gas is responsible for the acidity of rain when it combines with water vapor in the atmosphere?
Sulfur dioxide is a pollutant emitted by burning fossil fuels that can react with water vapor in the atmosphere to form sulfuric acid rain.
37. Which gas is used in the semiconductor industry to create an inert atmosphere for processing materials?
Argon is commonly used in the semiconductor industry to create an inert atmosphere that is free from oxygen and moisture for processing delicate materials.
38. Which gas is used in the production of soda ash, glass, and other industrial processes?
Carbon dioxide is used in various industrial processes, including the production of soda ash, glass, and as a coolant in certain applications.
39. Which gas is used in the food industry to carbonate beverages and make them fizzy?
Carbon dioxide is used to carbonate beverages like soda and beer, adding fizziness and bubbles to the drinks.
40. Which gas is the main component of smog and is a pollutant in urban areas?
Nitrogen dioxide is a major component of smog and is a harmful pollutant in urban areas, contributing to respiratory issues and air quality problems.
41. Which gas is used in underground mining operations to displace oxygen and prevent explosions?
Nitrogen is commonly used in underground mining to displace oxygen and reduce the risk of explosions in confined spaces where methane gas is present.