What causes heat?
Six different __________________ can help make work easier.
____________________ is done whenever a force moves an object through a distance.
A _____________ moves or turns an object.
A slide is an example of what type of machine.
A machine that splits an object apart is a ____________________.
An object being lifted or moved is a _____________.
A _____________________ is a machine used to hold objects together.
A simple machine used to raise a flag is a _____________________
A lever turn back and forth on a ______________.
A Yo-Yo is an example of what type of simple machine?
A ____________________is made of two or more simple machines.
A T-Rex has a mouth full of _______________________.
What is the force that pulls objects to the earth's center?
When the cart slides on the carpet, ______________makes it move more slowly.
A _____________________ is a push or pull.