Topic 1- Planet Earth

Proving the Earth is Round

• The Moon is round so Earth must also be round
• Shadow of Earth on the Moon during a lunar eclipse is round
• Tall ships appear to "sink" across the horizon

The Crust

• Solid layer
• Made of tectonic plates
• Composed of iron, oxygen and silicon

The Mantle

• Makes up 80% of the Earth
• Drive…