Transcript Pre-Assessment PowerPoint

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
Igneous Rock
“born of fire”
Forms from solidified magma or lava
Sedimentary Rocks
Forms from accumulation and compaction of
sediments
Metamorphic Rocks
“change form”
Forms when a rock changes due to heat &
pressure