Make a kaleidoscope and make a presentation in a class it make make
Answers
To make a kaleidoscope, get three
rectangular mirror strips each about
15 cm long and 4 cm wide. Join
them together to form a prism as
shown in. Fix this
arrangement of mirrors in a circular
cardboard tube or tube of a thick
chart paper. Make sure that the tube
is slightly longer than the mirror
strips. Close one end of the tube by
a cardboard disc having a hole in
the centre, through which you can
see. To make the disc
durable, paste a piece of transparent
plastic sheet under the cardboard
disc. At the other end, touching the
mirrors, fix a circular plane glass
plate. Place on this
glass plate several small pieces of
coloured glass (broken pieces of
coloured bangles). Close this end of
the tube by a ground glass plate.
Allow enough space for the colour
pieces to move around.