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Science.

Published on Nov 19, 2015

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1.

WHEEL&AXEL

Photo by psmithson
2.

The wheel and axel are at the bottom of the bike. The wheel and axel make it go forward .

Photo by CJS*64
3.

Pulley

Photo by cdw9
4.

The pulley is the chain on the bike.

Photo by you mee
5.

LEVERS

Photo by Tommi Komulainen
6.

The Handel bars on the bike are the levers. They allow you to turn.

Photo by -Dreamflow-
7.

FORCES

Photo by Ben Mortimer Photography
8.

Gravity

Photo by [Adam Baker]
9.

Gravity allows you to pull you down hills.

Photo by marcp_dmoz
10.

DRAG

Photo by sickmonk
11.

The brakes are the drag.

Photo by PaulGon
12.

The brakes on the bike are the drag they allow you to stop your bike.

Photo by srslyguys

Dominic Wooldridge