Sedimentary rock which was formed out of soil, silt, sand, seashells,
bits of pieces of everything. The tiny bits settled and
built up in thick layers. Minerals from water seeped into
the spaces between the particles and bonded them into
solid rock. The Grand Canyon is made up of sandstone,
limestone, and shale which are all sedimentary rocks.
|You will need:
Small paper cup
Please have an adult's supervision for this activity.
Mix 1 cup of water and 1/2 cup of Epsom salt in a mixing
bowl. Stir until most of the salt dissolves. Place about
1 inch of sand in a small paper cup. Add enough salt
solution to just cover the sand. Mix well. Let the
mixture stand until dry (about 2 to 3 days). Cut off the
Take a close look at the rock. Where is the salt? How
does it hold the sand together?
The source of
this article taken from Wherever You Are On Earth. .
.You're On Rock! by WHAM, the minerals information
company. If you would like additional educational
information and materials, stop by at www.aggman.com