Hardness
Soil
Rocks?
Classify
Tests
100
Can iron be scratched by a diamond?
Yet
100
What are the white things in potting soil
fertilizer
100
Is sand a mineral?
no
100
What does Igneous mean?
Formed from heat. ex. volcano
200
What hardness is a diamond?
10
200
Name two layers of soil
humus, sand, clay, gravel
200
Which rock or mineral make pencils?
graphite
200
What does erosion mean?
wind and rain changing rocks to sand and mushroom rocks. Moving rocks.
200
What rocks fizz?
Obsidian and limestone
300
What can scratch a diamond?
diamond
300
Soil is made from...
broken down rocks
300
Name 3 things made from rocks
glass, jewelry, bricks, bridges, houses, roads, weapons
300
What two things cause erosion?
Wind and rain
300
This test may use words like earthy, shiny, metallic or dull
lustre
400
How hard is talc?
1
400
The layer on the top of the jar in our soil test is called...
Humus - plants and dead animal matter
400
What is sidewalk made of?
Concrete
400
What holds soil together and prevents erosion?
roots
400
The Moh's scale tests what?
Hardness
500
Can a file scratch sandstone?
Yes
500
What material would you use if you were putting a beach in your backyard?
sand
500
If a rock can be scratched by a penny but not a fingernail it is hard, soft, medium or very soft.
Soft
500
What are cracks and how a rock breaks called?
Cleavage
500
Name a type of rock texture
bumpy, sharp, sandy, rough
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