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Saturday, February 4, 2012

FROM HAIR CUTS TO GLACIER GAK




This boy got his 2nd hair cut...



ever...

He had dreads down to the middle of his back just a few months ago. so sweet, this boy!


"see?"  he says.
and then this boy. . .from THIS

TO THIS...(TEASING MAMA DURING THE CUT, CUZ I AM NOT FOND OF MOWHAWKS)

to this...

TO THIS SWEET FELLA!



We made Glacier Gak! You just need Glue, some borax and water.

This recipe came from our favorite science book " Naked Eggs and Flying Potatoes " by the science king Steve Spangler                 

mixing the goodies
        are you old enough to remember Silly Putty?  I certainly am! hehehe!

Gak resembles Silly Putty
and  do you remember how if you leave it unattended on the table, it spreads itself out?





adding the color  green to another batch

We made 2 batches.  1 white, the other one green (because we didn't have blue) and combined them to show the movements of Glaciers... when left unattended.
but they couldn't leave it alone quite yet :)


     Willow even gets in on the fun!




she stretches and pulls...
Basically the putty-like material produces a polymer, a long chain of molecules.   If the long molecules slide past each other easily, then the substance acts like a liquid because the molecules flow.  If the molecules stick together at a few places along a strand, then the substance behaves like a rubbery solid called an elastomer. Borax is responsible for hooking the glue's molecules together to form the putty-like  material.  We are learning about some of the properties of polymers.

and she throws it...

and she tries to mix up some more ...

and she plays the spoons too! lol

Here we put a cookie sheet on an incline (books stacked up underneath one end)  and put the Gak at the top of it

the gak SLOWLY moves down,

and it  moves so slowly to the bottom.  The mixture of green and white creates some amazing patterns and mixtures, simulating the slow movement of a glacier.


it feels so cold too, just like ice

making foot prints
9 year old human print
 which disappeared shortly after leaving it unattended!

Cai decides to play with colored pencils to make a "level"!  Line work and geometry.  Everything is a "level" to him.


The boys pictures of the Glacier Gak for their portfolio

 There are plenty of recipes of this Gak online and it is so much fun to play with polymers.  We put the used Gak in a ziplock and pull it out for some stretching, snapping, putty-like ball of clay fun,  almost daily!  Enjoy! It's GREAT to be a homeschooler
or a mama!  or someone that works with kids!  or any of the above :) 


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