Earths Structure
What layer of Earth is made of solid iron and nickel?
Inner Core
What causes tectonic plates to move?
Convection currents in the mantle
What instrument measures air pressure?
Barometer
What galaxy contains our solar system?
Milky Way Galaxy
What are the three main rock types?
Igneous, sedimentary, metamorphic
Which layer of Earth is liquid?
Outer Core
What type of boundary forms mountains?
Convergent boundary
What is the difference between weather and climate?
Weather is short-term conditions; climate is long-term patterns.
What causes seasons on Earth?
Earth’s tilt
Which rock type forms from cooled magma or lava?
Igneous
What is the thin outer layer of Earth called?
Crust
What boundary occurs when plates slide past each other?
Transform boundary
What causes wind?
Differences in air pressure
What force keeps planets orbiting the Sun?
Gravity
What process turns sediment into sedimentary rock?
Compaction and cementation
Which layer slowly flows and allows tectonic plates to move?
Mantle / Asthenosphere
What forms at divergent boundaries in the ocean?
Mid-ocean ridges
What type of front forms when cold air pushes under warm air?
Cold front
What is a light-year?
A measure of distance light travels in one year
Heat and pressure create what type of rock?
Metamorphic
What is the independent variable?
The variable the scientist changes
What is the dependent variable?
The variable being measured
Why are repeated trials important?
To improve reliability/accuracy
What is a scientific theory?
A well-tested explanation supported by evidence
Closest star to Earth?
Sun