Math
Science
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100

 corresponding in size or amount to something else

Proportional

100

 the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock

Fossils

100

not afraid, showing no fear

Brave

100

freedom from control

Independence

100

to suggest what someone should do

Advised

200

describes how elements between two sets, or within a single set, are connected or linked

Relationship

200

 to protect or keep safe

Preserve:

200

describe or draw attention to (a product, service, or event) in a public medium in order to promote sales or attendance

Advertise

200

to say that something is good

Recommend

200

the exact words someone says

Quote

300

expresses the relationship or relative size between two or more quantities, showing how many times one value contains another

Ratio

300

 a sheet, quantity, or thickness of material, typically one of several, covering a surface or body

Layers

300

 to recognize as special

Honor

300

a set of two things used together

Pair:

300

to help show that something is true

Support

400

to reduce the size of an object or measurement proportionally, resulting in a smaller, yet similar, version of the original

Scale down

400

a block or chunk of time 

Intervals:

400

a person who helps develop new things or ideas

Pioneer

400

to think of many ideas without stopping, by yourself or in a team

Brainstorm

400

to state you are writing, singing, or performing to honor someone

Dedicate

500

a comparison of two different quantities where the second quantity is always one

Unit rate

500

to make a decision or conclusion about something after studying it

Determine

500

to enlarge a figure or value, making it bigger by multiplying its dimensions or quantities by a scale factor greater than 1

Scale up

500

found or  practiced everywhere

Universal:

500

someone or something that provides what is needed

Source