Educational toys are a brilliant way for kids to learn about the science all about them, and making your very own science toys is simple and great fun.
Here is a description of how to make a simple science toy which led to the modern camera, the science toy is known as The Pinhole Projector.
This science toy demonstrates how light behaves. To make these exiting learning toys all you require is an empty Pringles tin, some baking foil or old news paper, tape, a hammer, nail, and scissors.
In the beginning you will need to take about 5cm off the bottom of the Pringles tube and using the hammer and small nail, make a hole in the centre of the metal base at the bottom of the 5cm piece you cut off.
This hole will let the light travelling in straight lines from whatever is being viewed into the pinhole projector.
Next, you need to place the plastic lid onto the top of the Pringles tube and tape the two pieces back together with tape, only this time with the plastic lid toward the opening of the 5 cm cut off piece of tube.
The polythene lid, now set within the cylinder 5cm away from the pin hole in the bottom, acts like a screen for the light travelling through the tiny hole in the tin base to produce an upside down image upon.
Next wrap some silver foil or wrapping paper around the tube to make it look good and stop the light from entering the tube through gaps.
Now point your new educational toy with the small hole towards a bright strong image like a tree on a sunny day and if you put your eye against the open end you will see an inverted image projected onto the plastic lid.
Why do you think the image is projected upside down?