ROCKS
ROCKS UNIT 8 6TH GRADE OF P.E.
ROCKS CHANGE. THEY ARE CONTINUALLY :
FORMING
ERODING
AND
MOVING FROM PLACE TO PLACE.
• Those changes are very slow.( over millions of years)
THE EARTH’S INTERIOR
• is very hot. • The heat inside the Earth
melts rocks.
• These melted rocks can
form VOLCANOES and cause EARTHQUAKES.
ROCKS MELT AND FORM VOLCANOES
Melted rock=MAGMA
magma chamber
magma
THE HEAT INSIDE THE EARTH CAUSES EARTHQUAKES.
• Earthquakes are
movements on the Earth’s surface.
• Volcanoes and earthquakes
change landscapes . Like the picture.
volcano
magma
earthquakes