Science
World Geography
History
Grammar
Fun Riddles
100

This force pulls objects toward the Earth.

What is gravity?

100

This river is the longest in the world.

What is the Nile River?

100

This man wrote the Declaration of Independence (U.S.)

Who was Thomas Jefferson?

100

 A word that describes a noun.

What is an adjective?

100

What has keys but can’t open locks?

What is a piano?

200

The process by which plants make their own food using sunlight.

What is photosynthesis?

200

The largest desert in the world.

 What is Antarctica?

200

The ancient civilization that built the pyramids.

 Who were the Egyptians?

200

The past tense of "run."

What is "ran"?

200

The more you take, the more you leave behind. What am I?

What are footsteps?

300

The largest planet in our solar system.

What is Jupiter?

300

This country is both a continent and an island.

 What is Australia?

300

The war fought between North and South in the U.S.

What was the Civil War?

300

The name for words like "but," "and," "or" that connect sentences.

What are conjunctions?

300

I speak without a mouth and hear without ears. What am I?

What is an echo?

400

The three states of matter?

What are solid, liquid, and gas?

400

The capital of Japan.

 What is Tokyo?

400

he first person to walk on the moon (1969).

Who was Neil Armstrong?

400

The correct form: "She ___ to the store yesterday.

What is "went"?

400

What comes once in a minute, twice in a moment, but never in a thousand years?

What is the letter "M"?

500

This gas do humans breathe out, and plants absorb.

 What is carbon dioxide (CO₂)?

500

The mountain range that includes Mount Everest.

What are the Himalayas?

500

The year World War II ended.

 What was 1945?

500

The difference between "its" and "it's."

What is "its" (possessive) vs. "it's" (it is)?

500

What has cities but no houses, forests but no trees, and rivers but no water?

What is a map?