SCIENCE ASSIGNMENT!!

Category 1

• What rock is light enough to float on water? : Pumice is a volcanic rock that is light enough to float in water.
• Which rocks are formed from the remains of living things? : sedimentary rocks are the remains of living things such as clamshells, plankton skeletons, dinosaur bones, and plants
• Why are the crystals in pillow basalt smaller than those in many other examples of basalt? : pillow basalts where magma is erupted into direct contact with the cold sea form very fast and are therefore small.
• Describe two major differences between the appearance of granite and basalt : granite is a pink/white rock whilst basalt is a dark rock.
• List the three minerals found in granite: mica, plagioclase and feldspar are three minerals found in granite.
• From what are sedimentary rocks formed?: Sedimentary rocks are formed when sediment is deposited out of air, ice, wind, gravity, or water flows carrying the particles in suspension.
• How do you identify sedimentary rocks: Sedimentary rocks generally have a layered appearance.
• Metamorphic rocks: rocks such as gneiss, phyllite, schist, and slate have a layered appearance that is produced by exposure to heat.
• Mi

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