Saturday, April 28, 2012

Rocks Around Us

We classify rocks based on their colors and their textures.
We can describe the texture of rocks as...
1. coarse or fine (size of the grains)
2. jagged or rounded (shape of the grains)
3. indefinite, banded, or swirled (pattern of the grains)


What can you say about these rocks?
1
2
3
4
5

We observed rocks in our schoolyard.





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