What is...
What is a mineral made of?
Elements
How are metamorphic rocks formed?
when heat and pressure change older rocks
How is an igneous rock formed?
cooling magma or lava
Through weight and pressure
What is the rock cycle?
a process in which one type of rock changes into another type
What is a rock?
hard, soild material
What causes a sedimentary or igneous rock to turn into a metamorphic rock?
heat and pressure
if an igneous rock cools fast...
it is smooth and looks like glass
Give an example of a Sedimentary rock
Sandstone, coal
What are some ways to describe a rock?
by their hardness and texture, by their color and patterns, by their size and shape
What is a fossil?
A fossil was made millions of years ago from dead plants and animals that settled at the bottom of lakes, rivers or seas.
if an igneous rock cools slow...
it is small, rough and has holes
Why are sedimentary rocks easy to break apart?
They are made up of bits of rock that have been pressed together.
Weathering is related to changing in the same way that erosion is related to _________.
Moving
What causes a metamorphic or igneous rock to turn into a sedimentary rock?
weathering and erosion on Earth’s surface
What can weathering do to a rock?
change the shape or size