History of the Earth

10SCIE - Geology

Finn LeSueur

2019

Ngā Whāinga Ako

  • Get an overview for the history of the Earth

Mahi Tuatahi

  1. Draw a vertical line in the center of your page and label it from top to bottom with: 5 billion years ago, 4 billion, 3 billion, 2 billion, 1 billion and now.
  2. Label one side Scientists Estimation and the other My Estimation.

Guess the dates of the following on your line:

  • When the Earth was first formed
  • When life first began
  • When plants first appeared
  • When dinosaurs first appeared
  • When dinosaurs became extinct
  • When early humans first appeared
  • When humans started to record things
  • When the Earth was first formed: 4.5 billion years ago
  • When life first began: 3.5 billion years ago
  • When plants first appeared: 470 million years ago
  • When dinosaurs first appeared: 230 million years ago
  • When dinosaurs became extinct: 65 million years ago
  • When early humans first appeared: 200,000 years ago
  • When humans started to record things: 5,000 years ago

Whakamātau: Toilet Paper Timeline

Research / Mahi Kāinga

  • Find out how scientists have aged the Earth.
  • What evidence have they used for their estimation.
  • Bring your research to class tomorrow!