G2: Tools & Testing
How do you test the hardness of a rock?
Scratch with fingernail or penny
What tools do scientists use to test rocks and minerals?
Hand lens or rock hammers
What does luster mean?
Luster is the rock’s shininess
What safety rules should we follow when collecting rocks
Wear protective gear
How many types of rocks are there?
Three: metamorphic, igneous, sedimentary