Vocabulary
Constant movement of water through the oceans, atmosphere, land, and living things
What is the Water Cycle?
A timeline that illustrates Earth's past
What is the geologic time scale?
Type of rock that forms from layers of sediment compacted and cemented together
What is sedimentary rock?
Process in which liquid water changes to water vapor
What is evaporation?
Water that contains little or no salt
What is freshwater?
Water that falls from clouds to Earth's surface
What is precipitation?
Age in comparison with other rocks, either older or younger
What is relative age?
Type of rock formed from cooled magma or lava
What is igneous rock?
Process in which water vapor changes to liquid water
What is condensation?
Liquid rock coming out of a volcano
What is lava?
This process makes puddles disappear
What is evaporation?
Age of rock in years as determined by radiometric dating
What is absolute age?
Type of rock formed under high temperature and pressure
What is metamorphic rock?
Process in which plants release water through their leaves
What is transpiration?
Liquid rock deep inside a volcano
What is magma?
How plants add water to the atmosphere
What is transpiration?
These give us clues about the plants and animals of Earth's past
What are fossils?
Rock formed from magma cooled beneath Earth's surface
What is intrusive igneous rock?
Rain, sleet, snow and hail are examples
What is precipitation?
Forms large crystals in intrusive igneous rocks
What is slow cooling?
The reason your cold drink in a glass "sweats"
What is condensation?
The largest division on the geologic time scale
What is Eon?
Rock formed from lava cooled on or above Earth's surface
What is extrusive igneous rock?
Where most of Earth's water is stored
What is the ocean?
How sedimentary rock could become igneous rock
What is melting and cooling?
In a sequence of rock layers, the oldest layer is at the bottom and the youngest layer is at the top
What is the Law of Superposition?
Earth's approximate age.
What is 4.6 billion years?
The law of superposition
What is "in rock layers, the oldest layer is at the bottom and the youngest is at the top"?
When ice or snow turns directly into water vapor, skipping the liquid phase.
What is sublimation?
How metamorphic rock could become sedimentary rock
What is weathering and erosion followed by compaction and cementation?