UNIT 6: EARTH PHYSICS
Unit 6.4: Changes in the Earth
Unit 6.1: Sound waves
Unit 6.2: Reflections of sound
Unit 6.3: Structure of the Earth
Unit 6.5: Solar and lunar eclipses
Where does sound come from?
Sound waves
What is a soundwave?
Vibration in a vacuum
Sound waves on the move
Reflections
Useful echoes
Unwanted echoes
The crust
The mantle
The core
Outer core
Inner core
Continental drift
Tectonic plates
Geological change
Movement of plates
Fold mountains
Plate boundaries
Example of geological change and event
Where does the geological change happen?
Plates moving together
Plates moving apart
Plates sliding past
What are fold mountains?
The newest fold mountains
The oldest fold mountains
Volcanoes
Where are volcanoes formed?
What is magma?
What is lava?
Earthquake
Shadows
Solar eclipse
Lunar eclipse