1. The Rock Cycle
Rock – a naturally occurring solid mixture containing one or more minerals

2. What is a rock?
A rock is a mixture of such minerals, rock fragments, volcanic glass, organic matter, or other natural materials.
Most rock used for building stone contains one or more common minerals, called rock-forming minerals, such as quartz, feldspar, mica, or calcite
When you look closely, the sparkles you see are individual crystals of minerals.

3. What is the difference between a rock & a mineral?
Minerals are solid, naturally occurring, inorganic, have a fixed composition and are made of one or more elements.
Rocks are made of one or more minerals.

4. What is the rock cycle?
To show how rocks slowly change through time, scientists have created a model called the rock cycle.
It illustrates the processes that create and change rocks.

5. Rock Cycle Continued
The rock cycle shows the three types of rock— igneous, metamorphic, and sedimentary—and the processes that form them.

6. The Rock Cycle
Weathering – the process by which wind, water, ice, or gravity break down rock into sediment.
Erosion: The process by which soil and sediment is transported from one location to another.

7. The Rock Cycle
Deposition – the process in which material is dropped and comes to rest…deposited.

8. Intense Heat and Pressure
Compaction and Cementation
SEDIMENTARY
ROCK
SEDIMENT
Weathering and erosion
Intense Heat and Pressure
Weathering and erosion
Weathering and Erosion
Melting
METAMORPHIC
ROCK
IGNEOUS
ROCK
Intense Heat and Pressure
Melting
Melting
Cooling
Intense Heat and Pressure
MAGMA

9. Recycling Rocks!
Did you know that rocks are constantly being recycled?
Recycle means to take something old and change into something new.
Some of the Earth’s oldest rocks that have been around for more than four billion years are being changed into different rocks.
The rock cycle takes millions of years.

10. What is the law of conservation of matter?
Law of conservation of matter states that matter cannot be created or destroyed.
The changes that take place in the rock cycle never destroy or create matter.
The elements are just redistributed in other forms.

11. Can be formed from solutions
Made of elements
Must be inorganic
Can be made from organic materials
Solid
Can be made of lava/ magma
Made only of compounds
Elements must be chemically bonded
Mixtures made of minerals
Have crystals
Can be
man made
Naturally occurring
Can be formed from solutions