Science
Social Studies
Grammar
Math
Spelling
100

This planet has the most moons.

Saturn

100

I sailed the ocean blue in 1492.

Christopher Columbus

100

Person, place, or thing

Noun

100

I am the smallest prime number.

2

100

I'm a vowel, but only sometimes.

Y

200

Most clouds float in this layer of the atmosphere.

Troposphere 

200

The three branches of government.

Judicial, executive, legislative

200

When two words are combined into one by using an apostrophe.

Contraction

200

Uh oh! I've solved a long division problem but there's something left over. What is this called?

Remainder

200

I before E except after C, but not in this word! Look up and you'll find me there.

Ceiling

300

What is a crow considered in the food chain?

Scavenger

300

What part of a map tells you what the symbols stand for?

Legend or Key

300

Words that have the same pronunciation, but different spelling and meaning, are called this.

Homophones

300

I am the bottom number in a fraction.

Denominator 

300

This word meaning "frozen water dripping from above" has two letter C's. The first one is soft, and the second one is hard.

Icicle

400
The process of transferring heat by electromagnetic waves.

Radiation

400

We were sent to explore further west in the US. Jefferson sent us!

Lewis and Clark

400

I come before a noun to express relation to the beginning of the sentence.

Preposition

400

I am expressed as a fraction of 100, or part over whole.

Percentage

400

I am the most commonly used vowel, but I'm often silent at the end of a word.

E

500

What is energy that is already in motion?

Kinetic energy

500

James Madison proposed that this list of laws be written for an orderly government.

The Constitution 
500

Two dogs is sitting on the grass. What grammar element is wrong in this sentance?

Verb agreement

500

I am expressed by powers of ten.

Decimal

500

People often clap when trying to figure out how many of me are in a word.

Syllable

M
e
n
u