igneous rocks. states that in a series of rock layers, the layers toward the bottom had to be laid...
TRANSCRIPT
States that in a series of rock States that in a series of rock layers, the layers toward the layers, the layers toward the
bottom had to be laid first and bottom had to be laid first and were therefore older than were therefore older than
layers higher up.layers higher up.
Because they believed that simple Because they believed that simple fossils came before complex &fossils came before complex &
Rocks containing similar fossils must Rocks containing similar fossils must have similar ages even if they are have similar ages even if they are horizontally far aparthorizontally far apart
Linked fossils together in a “guide Linked fossils together in a “guide fossil”fossil”
This is molten rock found beneath the This is molten rock found beneath the surface of the earth.surface of the earth.
This is molten rock found above This is molten rock found above the earth’s surface.the earth’s surface.
This rock forms when molten rock This rock forms when molten rock solidifies above the earth’s surface.solidifies above the earth’s surface.
This is formed when molten This is formed when molten rock solidifies after squeezing rock solidifies after squeezing into other rocks or intruding into other rocks or intruding
into theminto them
Intrusive rocks can eventually appear Intrusive rocks can eventually appear at the earth’s surface becauseat the earth’s surface because
Magma that intrudes into cracks that Magma that intrudes into cracks that cut through existing layers of rock cut through existing layers of rock
hardens to form what?hardens to form what?
This rock is similar to scoria but is a This rock is similar to scoria but is a light-colored rock. It often contains light-colored rock. It often contains so many trapped bubbles that it can so many trapped bubbles that it can
float in water.float in water.
This “natural glass” made of lava cools This “natural glass” made of lava cools rapidly and has no crystals. It occurs rapidly and has no crystals. It occurs
in the colors black, brown, and red in the colors black, brown, and red and it fractures conchoidallyand it fractures conchoidally