Earth’s Structure
What is the thin, outermost layer of Earth?
The crust
What is the breaking down of rocks into smaller pieces called?
Weathering
What type of rock forms from cooled magma or lava?
Igneous rock
What tool measures temperature?
Thermometer
What is a testable explanation called?
Hypothesis
Which layer of Earth is made of solid iron and nickel?
The inner core
What process moves sediments from one place to another?
Erosion
What type of rock forms from heat and pressure?
Metamorphic rock
What metric unit measures mass?
Grams
What variable does the scientist change on purpose?
Independent variable
What layer creates Earth’s magnetic field?
The outer core
What process drops sediments in a new location?
Deposition
Sedimentary rock forms through which two processes?
Compaction and cementation
What tool measures liquid volume?
Graduated cylinder
A scientific theory is supported by what?
Repeated evidence
What is the thickest layer of Earth?
The mantle
Plant roots breaking rock is which type of weathering?
Physical weathering
Fossils are most commonly found in which type of rock?
Sedimentary rock
What tool measures length precisely?
Meter stick or ruler
What is a scientific law?
A pattern in nature that always happens the same way
What theory explains that Earth’s lithosphere is broken into moving plates?
Plate tectonics
Rust forming on rock is which type of weathering?
Chemical weathering
What is the name of the cycle that changes rocks from one type to another?
Rock cycle
What tool separates substances using rapid spinning?
Centrifuge
Why do scientists replicate experiments?
To confirm results and increase reliability