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Geology Investigation
Grain Size Mystery
Time to go on a sedimentary rock hunt! Students use grain size cards to describe grains within their rock samples.
Materials:
Meeka microscopes
Sandstone, mudstone and limestone samples
Sorting cards
Pippi Pippette
Vinegar or lemon juice
Petri dishes (Remember to use a petri dish when placing the rocks on the microscope)
Nail (to scratch the sample to identify if it is a limestone)
How Do Geologists Sort Sedimentary Rocks?
What Characteristics Do Your Rock Samples Have?

Earth's Place in the Universe 4-ESS1-1:
Identify evidence from patterns in rock formations and fossils in rock layers to support an explanation for changes in a landscape over time.
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