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Science Vocabulary

Across
The rigid outermost shell of a terrestrial type planet or natural satellite that is defined by its rigid properties.
The most basic building blocks of all living things.
A rock that was once one form of rock, but has changed to another due to heat, pressure, or another agent.
A fault line where two tectonic plates slide past each other horizontally.
A boundary where two tectonic plates move towards each other.
The action of revolving around an object.
A scientific instrument used for observing small objects.
A suit that astronauts wear to survive the conditions of space.
The four largest moons that revolve Jupiter, discovered by Galileo.
The color of powder produced from a mineral when scratched upon a hard surface.
A rock that is formed through the cooling of magma.
Down
A rock formed by layers of materials that have been squeezed and hardened.
When two plates move away from each other.
A missile, spacecraft, aircraft, or other vehicle that obtains the thrust from a rocket engine.
A force of attraction by which terrestrial bodies tend to fall towards the center of the earth.
Massive, irregular slabs of the lithosphere that move above the asthenosphere.
The region below the lithosphere and on top of the mantle.