What is the largest organ of the human body?

The Skin

The Liver

The Brain

The Heart

Please select at least one answer.

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

Nitrogen

Oxygen

Hydrogen

Carbon Dioxide

Please select at least one answer.

Which planet is known as the 'Red Planet'?

Saturn

Mars

Venus

Jupiter

Please select at least one answer.

Which planet in our solar system is the largest?

Neptune

Earth

Saturn

Jupiter

Please select at least one answer.

Water boils at what temperature in Celsius?

50 degrees

0 degrees

212 degrees

100 degrees

Please select at least one answer.

Which part of the cell is known as the 'Powerhouse'?

Ribosome

Nucleus

Mitochondria

Cell Membrane

Please select at least one answer.

What type of rock is formed by volcanic activity?

Igneous

Metamorphic

Limestone

Sedimentary

Please select at least one answer.

Which state of matter has a definite volume but no definite shape?

Liquid

Plasma

Solid

Gas

Please select at least one answer.

What force pulls objects toward the center of the Earth?

Inertia

Friction

Magnetism

Gravity

Please select at least one answer.

Which scientist developed the theory of relativity?

Marie Curie

Albert Einstein

Isaac Newton

Stephen Hawking

Please select at least one answer.

How many bones are in an adult human body?

106

512

206

306

Please select at least one answer.

What is the center of an atom called?

Electron

Orbit

Proton

Nucleus

Please select at least one answer.

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

Respiration

Evaporation

Pollination

Photosynthesis

Please select at least one answer.

What is the hardest natural substance on Earth?

Iron

Gold

Granite

Diamond

Please select at least one answer.

Which of these is a mammal that can fly?

Ostrich

Bat

Penguin

Flying Squirrel

Please select at least one answer.

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Are You Smarter Than a 5th Grader: Science Edition

What is the largest organ of the human body?

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

Which planet is known as the 'Red Planet'?

Which planet in our solar system is the largest?

Water boils at what temperature in Celsius?

Which part of the cell is known as the 'Powerhouse'?

What type of rock is formed by volcanic activity?

Which state of matter has a definite volume but no definite shape?

What force pulls objects toward the center of the Earth?

Which scientist developed the theory of relativity?

How many bones are in an adult human body?

What is the center of an atom called?

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

What is the hardest natural substance on Earth?

Which of these is a mammal that can fly?