Push-Pull Science
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Glossary
Forces-
A force is a power, energy, or physical strength.
Friction
the rubbing of one object or surface against another.
Gradient-
a slope or incline, a hill
Gravity-
the force which holds us to earth and holds things in the universe to each other, it is a pull force
Height-
the distance from the bottom to the top.
Push-
to move something or cause something to move by using pressure against it. Shoving it.
Pull-
to make something move forward by dragging, to move something towards you
Recommended Beginners Online Dictionary
http://www.wordsmyth.net/
.