Gr3 .. (P2.L2 .. Ch5.L1) Revision

Which type of simple machine would be found on the bottom of a wagon?

• a pulley
• a screw
• a wedge
• a wheel and axle

Which  simple machine is found on the head of an ax?

• wedge
• lever
• pulley
• screw

The seesaw is an example of which simple machine?

• incline plane
• wedge
• lever
• pulley

The wheel and rope make up which simple machine?

• pulley
• lever
• wheel and axle
• inclined plane

What is a machine?

• It makes work harder

• It does not change anything in work

• It makes work easier

All of the living and nonliving parts that interact in an environment.

• population

• ecosystem

• community

• organism

All the living things AND nonliving things around us

• Environment

• Ecosystem

• Population

• Community

This is a population

• True

• False

This is a population

• True

• False

______________________ is part of a nonliving ecosystem.

• weather

• soil

• water

• All of these