Science Starter Define the following terms: Rock Rock Cycle Igneous Rock Metamorphic Rock Sedimentary Rock

1. When a mineral breaks smoothly, it is called ____________. 2. ___________ is when a mineral breaks into jagged pieces. 3. A mineral’s _____________ is its resistance to being scratched. 4. Hematite leaves a reddish powder when scratched along a surface; this powder is called _______________. 5. The particles in gold are more tightly packed than the particles in ice. Gold must be more ___________ than ice. 6. A mineral that is very shiny has a metallic ___________.

ROCKS

What is a Rock? Solid Naturally-occurring Mixture of minerals and other materials. Fill in your Guided notes

What is the difference between a rock and a mineral? Rocks are mixtures of ONE or MORE minerals. Fill in your Guided notes

What is the difference between a rock and a mineral?

What is a Rock? Rocks are divided into 3 groups based on how they were formed: SEDIMENTARY IGNEOUS METAMORPHIC

Sedimentary Rocks Formed from sediments (rock fragments, mineral grains, animal & plant remains) that are pressed or cemented together. Fill in guided notes: Pieces of rock and other materials get pressed together

Sedimentary Rock

COLOR THE ARROWS BROWN SEDIMENTARY Weathering Erosion Compacting

Once a rock is formed, does it stay the same rock forever? NO!

Rocks are continually changed by many processes, such as weathering, erosion, compaction, cementation, melting, and cooling Rocks can change to and from the three types

What is a Rock? Rocks are divided into 3 groups based on how they were formed: SEDIMENTARY IGNEOUS METAMORPHIC

“Ignis” = Latin for “fire” Igneous Rocks “Ignis” = Latin for “fire” Formed from the cooling of either magma or lava The most abundant type of rock Fill in your guided notes: Melted rock cools and hardens

IGNEOUS Color the igneous arrows RED SEDIMENTARY Weathering Erosion Compacting Melting Cooling Hardening Melting Cooling Hardening SEDIMENTARY Weathering Erosion Compacting

What is a Rock? Rocks are divided into 3 groups based on how they were formed: SEDIMENTARY IGNEOUS METAMORPHIC

Rocks that have changed due to intense heat and pressure Metamorphic Rocks Rocks that have changed due to intense heat and pressure “Meta” means “change” and morphosis means “form” in Greek Igneous, sedimentary and other metamorphic rocks can change to become metamorphic rocks Fill in guided notes: Heat or pressure changes rocks

IGNEOUS 18.____________ 16. _____________ Melting 17.___________ Hardening Heat and Pressure Weathering Erosion Compacting Heat and Pressure 16. _____________ 18.____________ Weathering Erosion Compacting

What is the process through which rocks change? The Rock Cycle—earth materials change back and forth among the different types of rocks in a never-ending cycle. Answer Question in guided notes

IGNEOUS METAMORPHIC SEDIMENTARY Weathering Erosion Compacting Heat and Pressure Melting Cooling Hardening Melting Cooling Hardening SEDIMENTARY Heat and Pressure METAMORPHIC Weathering Erosion Compacting

There is no set path a rock takes to become another kind of rock

How are rocks redistributed? The core, mantle, & crust are one giant rock recycling machine

Rocks Have Been Used For Many Years and For Many Things

A Rock’s Story Tell the story of a rock’s life cycle. Explain the rock cycle in your own words. Describe all the ways a rock can change. Your answer should include: The 3 types of rocks The way each type of rock is formed How one type of rock can change into another. You may include pictures when you have finished your story