Topic 4 Lesson 3 Rocks (4th)

Greater, Lower

A mineral with a ____ hardness can scratch a mineral with a ____ hardness.

Streak

A mineral's color in powdered form is called?

Particles of weathered rock combine to form sedimentary rock. Sedimentary rock undergoes heat and pressure to form metamorphic rock and magma is cooled to form igneous rock.

Describe how rock changes from one form to another at each stage of the rock cycle.

It's the color of mineral in powdered form the powder can be seen by rubbing a mineral along a streak plate.

Explain a mineral's streak.

Magma and lava cools and hardens.

Explain how igneous rock forms.

Luster

How a mineral reflects light is called?

by the way they are formed

How are rocks sorted?

Rocks are made of minerals when rocks break down. They become the particles that make up soil.

How are soil, rocks, and minerals related?

Scientist use the rock cycle to determine what the rock is made of, how old it is, or where it originated.

How can the rock cycle help geologists gain better understanding of different types of rock?

Sedimentary rock will typically be found near places where sediment builds up this could be near basins, deltas, or other flat surfaces.

How does the location of sedimentary rock connect to the landforms nearby?

Hardens

How easily the surface of a mineral can be scratched is called

Plate boundaries have volcanoes and earthquakes. These are areas where magma can reach earth's surface and cool to form igneous rock

Igneous rock is found along plate boundaries. Why do you think that is?

Sandstone, limestone, conglomerate

List 3 kinds of sedimentary rocks. _____ sedimentary rock that forms from ribbons of different sand. ____ sedimentary rock that is made from bones and shells of sea creatures. ____ sedimentary rock that is made from chunks of rock glued together by other rock.

Glassy, metallic, waxy, pearly, chalky.

List 5 types of luster.

Color, texture, luster, streak, cleavage, hardens.

List some properties that minerals have.

Sand, soil, clay

List the main rock particles that are in soil.

Cleavage

Minerals that break along smooth, flat surfaces have

Sandstone

Sedimentary rock that forms from ribbons of different sand.

Limestone

Sedimentary rock that is made from bones and shells of sea creatures.

conglomerate

Sedimentary rock that is made from chunks of rock glued together by other rock.

Sedimentary rock because it would be worn away more quickly than the other types of rock.

Sedimentary rock wears away more quickly, and igneous and metamorphic rock wears away more slowly. Which type of rock might make up a coastal cliff? Explain your answer.

1. Properties that can be seen easily: color, luster. 2. Properties that can be felt: hardness, texture 3. Properties that can be tested: streak, cleavage

Think about the properties of minerals. How might you sort those properties? Explain.

One or more minerals.

What are rocks made of?

New crystals

What do metamorphic rocks usually develop?

They affect how the soil drains.

What is important about the type of rock particles in the soil?

Humus

What is organic matter that mixes in the soil called

Broken down rock

What is the parent material of sand, silt, and clay?

Rock cycle

What is the process in which rocks continually change from one type to another type of rock?

Metallic

What kind of luster look like polished metal?

Glassy

What kind of luster looks like glass?

Sedimentary, igneous, or other metamorphic rocks can be changed into new metamorphic rocks when they go through extreme heat and pressure.

What kinds of rocks can be changed into metamorphic rock?

Soil with little topsoil is mostly rock particles it cannot support most plants the crops would not grow.

What might happen if you tried to grow crops in soil with little topsoil?

Igneous

What type of rock forms from magma cooling?

Sedimentary

What type of rock forms from sediment that settles to form layers?

Metamorphic

What type of rock is formed by heat and pressure?

Sand

What type of soil does water flow quickly through?

Sedimentary

Which type of rock contains particles from the environment that have become stuck together?

Metamorphic

Which type of rock is being formed? Heat and pressure change the rock and new crystals sometimes form.

Igneous

Which type of rock is being formed? The rock melts and forms magma. Magma is hot liquid rock. The hot magma cools.

Sedimentary

Which type of rock is being formed? Weather, such as rain, can change rocks into bits of rocks. The rock particles can be moved and settle in new places. The particles combine together.