Natural Sciences and Technology Grade 5-B ... - Thunderbolt Kids

6. Repeat this for the other 2wheels.
7. You now have a simple tractor like in the picture below.
8. Put an object in the box and push your vehicle along the floor.
QUESTIONS:
1. Can you see the wheels turning on the axles and how the axles
connect the wheels?
Yes
2. Which part of the vehicle that you made is the axle?
The pencils
Dierent ways to make wheels and axles
Teacher's Note
This section shows dierent ways of making wheels and axles
using materials which are easily obtainable. First go through some
of the ways to make wheels and axles, and finally the last activity is
to experiment with dierent materials and evaluate which set ups
work best.
We are now going to experiment with dierent ways of making
wheels and axles and finding out the best materials to use.
There are two ways to let wheels turn on an axle. One way is to
have the axle fixed to the body, and the wheels are free to turn on
the axle. The other way is to have the wheels fixed to the axle and
the axle turns in abigger tube called the bearing. The bearing is
the hollow tube that the axle goes through. The bearing must be
bigger than the axle so that the axle can turn easily.
60 Energy and Change