Put your knowledge to the test with this planet Earth quiz, covering its layers, its atmosphere, its oceans, its continents, and its place in the Solar System.
Seen from space, Earth is often nicknamed the "___ Planet" because of all its water. What color? Choices: Red, Green, Blue, White
Counting outward from the Sun, which planet is Earth? Choices: Second, Third, Fourth, Fifth
What invisible force keeps your feet on the ground and the Moon in orbit around Earth? Choices: Magnetism, Friction, Inertia, Gravity
About what percentage of Earth's surface is covered by water? Choices: 50%, 71%, 30%, 90%
One ocean alone covers more of Earth than all the continents combined. Which one? Choices: Atlantic, Indian, Pacific, Arctic
How many continents does Earth have? Choices: Five, Six, Seven, Eight
What is the imaginary line that divides Earth into the northern and southern hemispheres? Choices: Prime Meridian, Tropic of Cancer, International Date Line, Equator
What is the thin, outermost layer of the Earth called? Choices: Mantle, Crust, Outer core, Inner core
Which layer of the Earth is the thickest? Choices: Crust, Outer core, Mantle, Inner core
What is the name of Earth's innermost and hottest layer? Choices: Crust, Mantle, Core, Lithosphere
Besides nickel, which metal makes up most of Earth's core? Choices: Copper, Iron, Aluminum, Silver
What do we call the two points at the top and bottom of Earth's axis? Choices: Poles, Hemispheres, Meridians, Tropics
Which gas makes up most of Earth's atmosphere? Choices: Oxygen, Carbon dioxide, Argon, Nitrogen
Right above Earth's surface sits the atmospheric layer where all our weather happens. Name it. Choices: Stratosphere, Mesosphere, Thermosphere, Troposphere
About how old is Earth? Choices: 4.5 million years, 450 million years, 45 billion years, 4.5 billion years