Kids on the Net is going to make some it's workshop projects available
to teachers and students here at this part of the site. Complete with pictures
and instructions, you should be able to f ind everything you will ever
need to repeat workshops or further study something we covered.
Rockets you can make yourself, using the properties of air and water
pressure. This activity can be altered to allow for payloads (eggs!) and
they're safe landing after flight!
Materials:
-- pop bottles (2L works best, but use whatever you can get, and they
have to be small mouthed, to fit the cork from a wine bottle)
-- a bicycle pump with needle
-- a wine bottle cork (used or unused, it doesn't matter)
Method:
-- Fill the bottles with different amounts of water (to see which creates
the most pressure in the bottle to send the rocket highest)
-- Push the needle through the cork (you may need to trim the cork
to make sure the needle goes all the way through), and then use this as
a stopper for the mouth of the bottle
-- Create a launchpad with rocks or snow - enough to hold the bottles
upright while upside down
-- Use the bicycle pump to oump air into the bottles, creating pressure.
-- When there is enough pressure, the rockets (bottles) should pop
right off the cork and fly into the sky! Watch your heads when they come
falling down!
A really fun activity based ojn the principlesof hot air
Materials:
-- tissue paper (each balloon requires 12 sheets)
-- markers, gluesticks and scissors
-- cut out diagram, as given
Method:
-- Each group has to have 12 sheets of tissue paper
-- Glue the shorter edges together in pairs as shown in the diagram
-- You should now have 6 pairs of sheets per balloon.
-- They should now be folded in half lengthwise. Place the flat edge
of the cutout shape against the folded edges of the tissue paper.
--Trace out the cutout, and cut all the pieces.
-- Glue the edges of all the pieces together, and then flip over the
whole balloon to close it.
-- Let the balloon dry overnight.
-- Before flying, turn the balloon inside out (it takes time and patience,
but basically, you have to reach through to the top, and then pull it through).
Be careful not to rip the tissue paper! But if you do, it's not too hard
to make a patch.
Launch:
-- Using a Coleman stove and a stove pipe, focus the air into the balloon.
It should almost be floating on it's own by the time it is full and ready
to go. Lift Off!!
This project explores the properties of esters (artificial colour
and flavour), when you create
apple tarts without apples! You'll be impressed, with a chemical
reaction that you get to eat!
Materials:
-- pre-made tart shells (can be bought from a grocery store, or, as
in our case, flown in by the grocery store by speacial request)
-- 25 Premium Plus crackers
-- cream of tartar
-- 1 and 1/4 cups of sugar
-- 1 and 1/2 cups of water
-- pot, spoon, baking tray
This should make about 6 tarts (4'' diameter)
Method:
-- Pre-heat oven to 400 degrees F.
-- Boil the water. Once it starts to bubble, add the sugar and stir
until it is dissolved.
-- Add 3/4 teaspoon of cream of tartar
-- Slowly add the crackers at about 5 at a time, stirring them and
breaking them up (but not into mush!) until they look a little like apples!
-- As soon as the crackers have become part of the mixture (and some
of t he water boils off), it should have the consistency of clumpy paper
mache. : ) Pour the mixture into the tart shells and bake for about 20
minutes, or until the tart shells start to turn brown.
-- Aloow to cool for 15 minutes, and then enjoy apple pie, without
any apples!
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