Math:
grades 2-6
Science
grades ???
(warning: difficulty is random)
100

'hint: It's in the equation.' 

grade 2-3:

10x2-15=

What is 15?

100

We live on this planet.

What is Earth?

200

'%=divided by'

grade 3?-5:

18+30%4=

What is 12?

200

An object made from light hitting water droplets in the air that gets refracted, or bent.

What is a Rainbow?

300

(' ' = hints)

'%=divided by'

grade '3'-5?:

'15-3' %2=

What is 6?

300

The moon going in front of the sun.

What is Solar eclipse?

400

'note: by 5th or 6th grade you should know what "P.E.M.D.A.S." means.'

grade 5-6:

(12+5)-(3x2)=

What is 11?

400

The science of humans.

What is Anthropology?

500

(' ' = hints)

'note: by 5th or 6th grade you should know what "P.E.M.D.A.S." means.'

'%=divided by'

grade 4,5, or 6?:

'(20x4)' %16- '(2x3)'=

What is (negative/-) 1?

500

1. The Sun looks like it's rising.

2. The Sun looks like it's falling.

1. What is Sunrise?

2. What is Sunset?