Monday, January 30, 2012Monday, January 30, 2012

• No HW; Test Friday, February 3, 2012• Warm Up –

1) If you use your fingernail to scratch a mineral, what property of the mineral are you testing?2) If you rub a mineral against a tile to see the color of its powder, what property of the mineral are you testing?

AgendaAgenda

• Review Study Guide• Review Games

DefinitionDefinition

• A rock is a solid mixture of minerals and other materials.

• A mineral is a naturally occurring, inorganic solid that has a crystal structure and a definite chemical composition.

3 Types of Rocks3 Types of Rocks

• Sedimentary rocks forms from particles from other rocks, or remains of plants and animals that are compacted and cemented together. Fossils are found in these rocks.

• Igneous rocks form when magma or lava cools.

• Metamorphic rocks form when a rock is changed by heat and pressure.

To identify a mineral: SNIFC it out!To identify a mineral: SNIFC it out!

• Solid– Cannot be a liquid or a gas

• Naturally Occurring– Found in nature, not man-made

• Inorganic– Is not alive and never was, non-living (generally not made from Carbon)

• Fixed composition– Has a chemical formula, most are formed from compounds of two or more

elements, some minerals consist of one element ex. Au

• Crystal Form– A definite structure in which atoms are arranged

Identifying MineralsIdentifying Minerals

1. Color2. Streak – color of a mineral’s powder3. Luster – way a mineral reflects light 4. Density – mass per unit volume5. Hardness – uses a scratch test6. Crystal Systems7. Cleavage & Fracture – cleavage splits easily

along flat surfaces; fracture breaks in a irregular way

8. Special Properties – magnetism, fluorescence

1) Mineral 4) gemstone2) Rock 5) ore3) Crystal or polyhedron

5) Magnet6) Luster7) Streak

1) Cleavage2) Hardness3) Fracture4) Crystal

Rock Cycle AnimationsRock Cycle Animations

• http://www.learner.org/interactives/rockcycle/diagram.html

• http://www.phschool.com/atschool/phsciexp/active_art/rock_cycle/index.html

• http://www.quia.com/files/quia/users/stephene/ES56_match_2.swf

• http://www.smithsonianeducation.org/students/smithsonian_kids_collecting/Rocks.swf

BrainPOP: Mineral IDBrainPOP: Mineral ID

http://www.brainpop.com/http://www.brainpop.com/science/earthsystem/science/earthsystem/mineralidentification mineralidentification

BrainPOP: Rock CycleBrainPOP: Rock Cycle

http://www.brainpop.com/http://www.brainpop.com/science/earthsystem/rockcycle/ science/earthsystem/rockcycle/

I am …I am …

Vocabulary GameVocabulary Game