Science Explorer Quiz

What is the boiling point of water?

• 90°C

• 100°C

• 120°C

• 80°C

Which gas is most abundant in the Earth's atmosphere?

• Oxygen

• Hydrogen

• Nitrogen

• Carbon Dioxide

What is the chemical symbol for gold?

• Au

• Ag

• Go

• Gd

How many planets are in our solar system?

• 7

• 8

• 9

• 10

What force pulls objects toward the center of the Earth?

• Magnetism

• Gravity

• Friction

• Electricity

What is the process by which plants make their food?

• Photosynthesis

• Respiration

• Fermentation

• Digestion

Which of the following is a renewable resource?

• Coal

• Oil

• Solar Energy

• Natural Gas

What is the hardest natural substance on Earth?

• Gold

• Iron

• Diamond

• Quartz

What is the formula for water?

• NaCl

Which vitamin is produced when the human skin is exposed to sunlight?

• Vitamin A

• Vitamin B

• Vitamin C

• Vitamin D