Pre assessment Questions Rocks & Landforms
What are rocks made of?
How do rocks change over time?
What causes the shape of land to change over time?
What questions do you have about rocks & landforms?
Rocks & Minerals
ALL ROCKS ARE MADE OF MINERALS
Minerals Found in nature Made of substances that were never alive (inorganic) have the same chemical makeup anywhere it is found Have atoms that are arranged in a regular pattern & form solid crystals.
Rocks A combination of one or more minerals They are classified by how they were formed There are 3 groups of rocks
“born of fire” Forms from solidified magma or lava Igneous Rock
Sedimentary Rocks Forms from accumulation and compaction of sediments
Metamorphic Rocks “change form” Forms when a rock changes due to heat & pressure