8th Grade
Science
150

What elements make up the water molecule?

Oxygen and Hydrogen 

200

How does mass effect the amount of force needed to move an object?

The greater the mass, the greater the amount of force needed to move it

250

What is the formula for velocity?

V=d/t

300

What separates the first four planets and the last 4 planets in our solar system

The asteroid belt 

350

What do the Chloroplasts do? 

The chloroplasts take in energy from the sun.

400

What force causes a book to slow down when sliding across the floor?

Friction