SOILS
IGNEOUS ROCKS
SEDIMENTARY ROCKS
METAMORPHIC ROCKS
THE EARTH
100
Composed of sand, clay, and humus.
What is SOIL?
100
The type of molten rock which comes from the mantle and reaches the crust.
What is MAGMA?
100
Made from little rock fragments and often carried away by rivers.
What are SEDIMENTS?
100
Metamorphic rocks are formed.
What is through HEAT and PRESSURE?
100
The 3 main layers of the Earth.
What is CRUST, MANTLE, AND CORE?
200
This type of soil has the fastest drainage.
What is SAND?
200
Pumice, Basalt, and Obsidian are specific types of this rock.
What are EXTRUSIVE IGNEOUS ROCKS?
200
Tiny gaps between the sediments in sedimentary rocks allow water to be absorbed into the rock.
What is POROUS?
200
Sandstone is heated and squashed to form quartzite, a rock which does not allow water to enter into the rock.
What is NON-POROUS?
200
The never ending process of large rocks being broken down into smaller rocks.
What is EROSION?
300
This type of soil is made from dead organic matter.
What is HUMUS?
300
When molten magma erupts out of a volcano.
What is LAVA?
300
The remains of dead plants and animals can be found in sedimentary rocks.
What are FOSSILS?
300
The result of heat and pressure on limestone.
What is MARBLE?
300
The 1960's theory describing how the continents move around the Earth.
What is the THEORY OF PLATE TECTONICS?
400
Clay and sand are made from something which has undergone millions of years of weathering and erosion.
What are ROCKS?
400
This type of intrusive igneous rock has 3 large types crystals.
What is GRANITE?
400
This rock is formed when many layers of sand are squashed under great amounts of pressure.
What is SANDSTONE?
400
Metamorphic rocks are formed here.
What is DEEP IN THE EARTH?
400
The age of the Earth.
What is ~4.5 BILLION YEARS OLD?
500
3 large crystals which can be found in granite.
What is QUARTZ FELDSPAR, and MICA?
500
This igneous rock has the smallest crystal structure that we studied.
What is OBSIDIAN?
500
Limestone is composed of this part of dead sea creatures.
What are FRAGMENTS OF SHELLS?
500
When carbon gets trapped deep below the Earth where it is heated and squashed at extreme pressures.
What is DIAMOND?
500
Scientists used these rock fragments to form a hypothesis about the age of the Earth.
What are METEORITES?
M
e
n
u