this ppt is on rocks and minerals for kids

2. Minerals are always solid with particles in repeating
patterns- crystals
They are only found in Nature.
They are formed in the Earth’s mantle (from heat
and pressure) – near the surface when oxygen,
calcium and carbon combine in the ocean, and
when hot, mineral-rich water moves slowly through
the cracks in the Earth’s crust.

3. Quartz CalciteIron
Hematite DiamondCalcite

4. Quartz makes glass.
Diamonds make
jewelry.
Many things that we
see and use every day
are made from iron.
Hematite can be
used to make art.

5. • Rocks are made up of two or more minerals.
• They are not crystals
• Some rocks form near the surface while others
deep in the crust.
• There are THREE major categories of Rocks:
1. IGNEOUS
2. SEDIMENTARY
3. METAMORPHIC

6. • Form when melted rocks harden
• Fine-grained rocks (smooth) are from lava
• Coarse-grained rocks (rough) are from
magma.
Obsidian Basalt Pumice Granite

7. • Formed from layers of sediment,
created by weathering, and
erosion, that are dropped from
moving water, and are squeezed
and stuck together.
• Fossils are usually found in
sedimentary rocks.
• Conglomerate rocks have large
pieces and rom in shallow water
• Siltstone is made up of smaller
pieces
• Limestone is made up of fine
grained rock
• Sandstone is made up of grains
the size of sand.
Fossil
conglomerate rock
Limestone
Sandstone

8. • Existing rocks are changed through high heat and
pressure to form different rocks
• morph = change
Schist
Gneiss
Marble
Slate

9. • Like most cycles, the materials are used over and over.
• Process include weathering, erosion, deposition, melting,
compaction, and cementation.

12. MADE BY RIDDHIMA
GUPTA VC