Science Quiz

Which planet is known as the "Red Planet"?

• Venus

• Mars

• Jupiter

• Saturn

What is the chemical symbol for water?

• O₂

• CO₂

• H₂O

• H₂O₂

What is the largest organ in the human body?

• Heart

• Brain

• Skin

• Liver

Which gas do plants absorb from the atmosphere for photosynthesis?

• Oxygen

• Nitrogen

• Carbon dioxide

• Hydrogen

What is the process by which plants make their own food?

• Respiration

• Transpiration

• Photosynthesis

• Germination

What type of energy is stored in food?

• Kinetic energy

• Chemical energy

• Electrical energy

• Heat energy

Which element is most abundant in the Earth's crust?

• Oxygen

• Iron

• Silicon

• Calcium

Which of the following is NOT a mammal?

• Whale

• Dolphin

• Penguin

• Bat

Identify the instrument used to measure temperature.

(a)  

Identify the force that pulls objects toward the Earth.

(a)