What planet is known as the “Red Planet”?
Jupiter
Mars
Earth
Venus
What gas do plants absorb from the atmosphere?
Hydrogen
Nitrogen
Carbon Dioxide
Oxygen
Which organ in the human body is responsible for pumping blood?
Heart
Lungs
Brain
Liver
What is the hardest natural substance on Earth?
Quartz
Diamond
Iron
Gold
Which planet has the most moons?
Saturn
Jupiter
Earth
Mars
What part of the plant conducts photosynthesis?
Stem
Leaves
Flowers
Roots
How many bones are in the adult human body?
201
212
198
206
What is the chemical symbol for water?
HO
H2O
CO2
O2
Which animal is the largest mammal on Earth?
Orca
Giraffe
Blue Whale
African Elephant
What force pulls objects toward Earth’s center?
Friction
Gravity
Electricity
Magnetism
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