Friday Pop Quiz 2023 (Grand Finale)

What is the primary gas found in Earth's atmosphere?

• Oxygen

• Nitrogen

• Carbon dioxide

• Hydrogen

What is the hardest natural substance on Earth?

• Diamond

• Quartz

• Ruby

• Gold

What country hosted the 2022 FIFA World Cup?

• Qatar

• Russia

• Brazil

• • South Africa

Which planet has the most moons?

• Jupiter

• Saturn

• Uranus

• Neptune

What is the main gas found in the air we exhale?

• Oxygen

• Nitrogen

• Carbon Dioxide

• Argon

What is the periodic table symbol for iron?

• Ir

• Fe

• In

• lo

What is the largest organ in the human body?

• Heart

• Skin

• Liver

• Brain

A bicycle has wheels of diameter 70 cm each. How far will the bicycle travel with 100 rotations of the wheels? (Use π = 3.14)

• 220 m

• 200 m

• 140 m

• 70 m

A bus can carry 50 passengers. If there are 12 passengers on the bus, how many more passengers can the bus carry?

• 28

• 32

• 38

• 42

A gardener plants trees in rows. If he plants 5 rows with 4 trees in each row, how many trees has he planted?

• 10

• 15

• 20

• 25