What is
1. nonliving
2. naturally occurring solid
3. that has its own regular arrangement of particles
100
Name the three kinds of rocks.
What is "igneous, sedimentary and metamorphic."
100
What is a mixture of nonliving materials and decaying materials from organisms?
What is "soil."
100
Define erosion.
What is "the movement of materials away from a place."
100
Why is wind erosion more likely to happen in dry areas than in moist areas?
What is "dry soil or sand is less heavy than moist soil or sand and thus easier to be carried away by wind."
200
Where are minerals found?
What is "in rocks and in soil."
200
Which rocks form when layers of materials and rock particles settle on top of each other and then harden?
What is "sedimentary".
200
Define weathering.
What is "a slow process that breaks rocks into smaller pieces called sediments."
200
Name at least two forces that make erosion happen.
What is "gravity, wind, water, and ice."
200
Name three kinds of soil and describe them.
What is …
1. Clay: smooth, with fine, packed particles
2. Silt: larger particles than clay, slippery but not sticky
3. Sand: even larger particles, includes quartz and particles from difference materials
300
Name two ways people use minerals?
What is
1. food-salt
2. jewelry
3. pencils
4. construction-mechanical parts or tools for grinding, cement
5. Quartz is used for making glass
300
What rock is formed inside the Earth after much heat and pressure?
What is "metamorphic".
300
Name at least three examples of weathering.
What is…
1. freezing and melting water
2. plant roots
3. chemicals in rain and snow
4. temperature
5. wind
300
What is the main force causing erosion and why?
What is "gravity is the main force because it is constantly pulling rocks and soil down."
300
How can you identify a ROCK?
What is "look at how it formed, its mineral content, its color and its texture."
400
Name 5 properties of minerals:
What is "hardness, luster, color, streak, shape, magnetism"
400
What rock comes from deep inside the earth or from lava that cools and hardens?
What is "igneous rocks".
400
What is another word for "decaying material."
What is "humus."
400
What process includes the laying down of materials such as rocks and soil?
What is "deposition."
400
Give examples of rocks for each of the three kinds of rocks.
How do you determine a minerals hardness? What scale do you use?
What is "do the scratch test and see what mineral is able to scratch another. Use Mohs Scale for Hardness to determine the minerals degree of hardness."
500
Rocks are continuously being formed and destroyed in a process called...
What is "the rock cycle."
500
What is the difference between organic and inorganic matter?
What is "organic matter includes LIVING materials and materials that were once alive, while inorganic matter includes all NONLIVING materials in soil."
500
Name at least three example of water erosion and deposition and explain each.
What is…
1. Rivers: As rivers flow downhill they carry sediments and deposit them.
2. Rain: It loosens sediments and carries them in runoff; may cause flooding and landslides.
3. Waves: They break rocks and carry pieces away.
4. Glaciers: They grind rocks as they travel downhill. Over a long time, they wear way a valley and deposit sediments elsewhere.
500
Explain why sometimes very small diamonds are used in powerful drilling tools?
What is "diamonds are the hardest minerals, ten in Mohs Scale for Hardness."