Show:
Minerals
Soil
Rocks
Geological "Grab Bag"
100
What is a mineral?
Solid material formed by nature, not formed by living things
100

What is soil formed from and how is it formed?

Rocks, minerals, decaying plants & animals formed (small bits of weathered rocks mixed with organic materials from plants and animals) slowly over time

100

What are rocks?

Rocks are the hard, non-living parts of the earth

Rocks are made from 1 or more minerals

100

What is erosion?

movement of weathered pieces of rock, when wind or water carries sediment away

200
What are the physical properties of a mineral?
color, luster, hardness, streak, cleavage & fracture
200

How does soil support the growth of plants?

Provides them with nutrients (minerals, water, air) they need to grow

200

Name the type of rocks made from sediments and formed in layers over a long period of time (an example is sandstone).

Sedimentary Rock

200

What is weathering?

forces that break rocks into smaller and smaller particles

300
What is the hardest mineral on the Mohs' Scale of hardness?
Diamond
300

What are 3 types of soil?

Clay, Sand, & Loam
300

Name the type of rocks that are "changed" by great heat and pressure inside the Earth (like sandstone changing into quartz).

Metamorphic Rock

300

What are the types of weathering?

water, wind and ice

400
What tests are used to find out the kind of mineral?
Moh's Scale for Hardness, Streak test, acid test, looking at color, luster
400

Explain what type of grains sandy soil and clay soil have.

Sandy soil has large loose grains, clay soil has fine tightly packed grains.

400

What kind of rock is formed by lava or magma (molten rock) being cooled and becoming solid (examples- granite and obsidian)?

Igneous Rock

400

What is an example of erosion?

Heavy Rain can move soil down a hill. (or other acceptable responses)

500
Can more than one mineral share the same properties?
No, each mineral has its own set of properties. No two minerals have the same set of properties.
500

What is the best type of soil for growing most plants?

topsoil

500

How are rocks used?

Tools, building materials, counter tops etc.

500

Explain the rock cycle.

Igneous rocks form from magma or lava, weathering breaks igneous into sediments & then under great heat and pressure inside the earth's crust igneous and sedimentary rocks are changed into a new form of metamorphic rock.