Here we go
Keep going
Don't stop
More
100

The grey matter in your head that controls thinking and movement

the brain

100

The apartment complex is close ____ Hoosick Street.

to

100

A group of animals or plants that are similar

species

100

This problem is going to be ________ .

 a hard nut to crack

200

A period of ten years

decade

200

Something that may happen or be true

possible
200

People who study science

scientists

200

I bought this vintage vase _______  at a garage sale. 

for peanuts

300

Shows that something may be true

demonstrates

300

Development of living things over time

evolution

300

The most important part of something

key

300

Unemployment is rising, prices are increasing; _________  , the economy is in trouble.

in a nutshell

400

In all parts of the world

worldwide / everywhere

400

The way a person or animal acts

behavior

400

Very, very old

ancient

400

The constant noise from the construction is ________.

driving me nuts

500

Looking for and killing animals for food

hunting

500

In the same way or amount

equally

500

The ability to move different parts of the body well together

coordination

500

I know my students think I'm as _______ because of my weird methods.

nutty as a fruitcake