Science Project

The Earth is Born

• The earth was born 4.5 billion years ago.
• Earth was made from clouds of dust and rocks.
• Earth formed when giant rocks collided.

The Origin of Life

• Life began around 4 to 3.5 billion years ago.
• The oldest fossils were single celled microogranisms

Life Harnessing the Power of Sun Light

• Earth's main source of energy is The Sun.
• Early microorganisms evolved to start the process of photosynthesis.

The Great Oxidation Event

• In the beginning of Earth's history there was very little oxygen in the air.
• Bactria started to harness sunlight to make sugar from carbon dioxide, which made oxygen, and the Bactria would give the oxygen off as waste.

The Beginning of Plate Tectonics

• Plate tectonics started around 3 billion years ago.
• Plate tectonics is when two plates of rocks ploughs under another to be melted under the earth's crust.

Cited sources

• www.bbc.com
• www.google.com