How can we help?

You can also find more resources in our Help Center.

33 terms

5th Grade Science - Earth's Surface

Introductory Earth Science vocabulary
STUDY
PLAY
Igneous
hardened/cooled liquid rock
Metamorphic
rock changed by heat/pressure
Sedimentary
bits mashed together into rock
Weathering
breaking down of Earth's surface
Erosion
broken bits going bye bye
Mechanical Weathering
physical weathering (usually touch)
Chemical Weathering
weathering due to molecular change
Lava
liquid rock above surface
Magma
liquid rock below surface
Crust
topmost layer of Earth
Mantle
hot liquid layer below crust
Oxidation
rusting (for example)
Permeable
hole-y rock
Soil
weathered material (with water & air)
Humus
decayed waste from life
Leaf Litter
plant remains
Decomposer
living things that create humus
Crop Rotation
changing plants to help soil
Conservation Plowing
leaving dead plants to rot
Abrasion
rock grinds rock
Sediment
little bits of weathered rock
Fossil
evidence of past life
Mold
hollow space where life was
Cast
solid copy of a mold
Trace Fossil
fossil evidence of activity
Paleontologist
person who studies fossils
Law of Superposition
lower sedimentary rocks are older
Extrusion
hardened lava (formed on surface)
Intrusion
hardened magma (formed under surface)
Fault
crack in the crust
Unconformity
missing time in the rocks
Oil
compact energy from really-old-dead-stuff
Limestone
sedimentary rock made from shells