Friday, 16 August 2013

Rocks-Classification and the Rock Cycle

Naturally after learning about volcanoes our conversations turned to rocks and their different forms.  The Internet is an amazing thing and I can see why so many people are homeschooling now.  In just a few seconds you can find an infinite amount of information, activities and handouts on any given subject!  Amazing!
 
We started with this cool rock cycle activity.  We grated some different colored crayons into piles.
For the sedimentary rock L layered the colored shavings on top of each other on some tin foil and then folded the sides up into a little package.  We both applied as much pressure as we could.
 

For metamorphic we made a little tin foil boat and L put the shavings into it.  We dipped it into a cup of boiling water for about 10 seconds and then folded up the tin foil again and pressed on it.
 
To make the igneous rock we once again put the shavings in a little boat but this time L stirred them around until they were completely melted.  We then folded up the tin foil and put it in the freezer for a couple of minutes.
These were the results.  A truly effective way to demonstrate the rock cycle.  Thank you to all of those bloggers that share their brilliant ideas!

 
While we were perusing our local book store I stumbled upon an absolute gem.  I found pamphlet called A Field Guide to the Identification of Pebbles all about the pebbles on Vancouver Island.  It has pictures of all of the different rocks and their classifications.  It is brilliant!
 
We took a stroll to the beach and collected our specimens.
 Once we got home L classified them using the pamphlet.  She also did the Mohs scratch test on some of them with a screwdriver to check hardness. 
 On our travels this summer we were lucky enough to visit a wonderful rock and gem shop with little caves that held gems that L could pick out and put in a little bag.  She was able to match them to the card that came along with them.
 I think a rock tumbler is now on the birthday list!!

2 comments:

Ania said...

Wonderful! I'm pinning your ideas not to forget them, when the time for rocks comes to us :)

Anees Rehman said...


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