Rocks
What is a rock?
A solid material made of minerals.
What is a mineral?
A solid, natural material with certain structure.
What is mitochondria?
The powerhouse of the cell.
What are the three types of rocks?
Igneous, sedimentary, metamorphic
What is luster?
The way a mineral reflects light.
Name an example of an igneous rock.
Obsidian
How are sedimentary rocks formed?
When small particles/sediment are compacted together.
What is hardness?
Name an example of sedimentary rock.
Sandstone
How are igneous rocks formed?
When molten rock cools and hardens.
What is streak?
Name an example of metamorphic rock.
Marble
How are metamoprhic rocks formed?
When existing rocks are changed by high pressure or heat.
Name the different properties of minerals.
Hardness, color, luster, streak, fracture, and cleavage.
What is a common use of a rock in real life?
Answers may vary