🌞 SOLAR SYSTEM
What is soil?
A mixture of weathered rock particles, organic material, water, and air.
What are the three main types of rocks?
Igneous, sedimentary, metamorphic.
What is soil?
A mixture of weathered rock particles, organic material, water, and air.
What process breaks rocks into smaller pieces?
Weathering
What is humus?
Organic material from decomposed plants and animals.
What type of rock forms when magma or lava cools?
Igneous rock.
What is humus?
Organic material from decomposed plants and animals.
What process moves sediments to another place?
Erosion
Name the three main soil particle types
Sand, silt, clay.
Which type of rock often contains fossils?
Sedimentary rock.
Name the three main soil particle types.
Sand, silt, clay.
What is the rock cycle?
The continuous process where rocks form, break down, and change into different types.
Which soil type is best for growing plants?
Loam soil.
What two forces transform rocks into metamorphic rocks?
Heat and pressure.
Which soil type is best for growing plants?
Loam soil.
How can sedimentary rocks form?
Sediments settle in layers, then are compressed and cemented.
Why does sandy soil drain water quickly?
Because it has large particles with big spaces between them
Why do some igneous rocks have large crystals while others do not?
Because magma that cools slowly forms large crystals, while lava that cools quickly forms small or no crystals.
Why does sandy soil drain water quickly?
Because it has large particles with big spaces between them
Explain how an igneous rock could become a sedimentary rock.
Weathering → erosion → sediments → layers → compression → sedimentary rock.