Planet Earth

Planet Earth

Unit Overview:
The scientific study of Earth is based on direct observation of landforms and materials that make up Earth’s surface and on the sample evidence we have of Earth’s interior. By studying this evidence, we discover patterns in the nature and distribution of Earth’s materials, and in the kinds of changes that take place. This knowledge can be used in developing models for geologic structures and processes—models that help both scientists and students enlarge their understanding of their observations, and guide further investigation and research.



  1. What do we know about Earth – about the surface and what lies below?
  2. What evidence do we have that Earth changes?
  3. How do we use evidence of Earth’s changes to develop an understanding of our planet?

These notes are from EdQuest, a site for student information and resources for grade eight.  These are NOT my class notes, but they offer a great alternative with the same information.  To view the class notes, please visit the SECURED PAGE from the Science 7 menu at the top of this page.  You will need the password to view the secure page.

Section 1 – Earth’s surface undergoes gradual and sudden changes
Section 2 – The Rock Cycle describes how rocks form and change over time.
Section 3 – Landforms provide evidence of change
Section 4 – The fossil record provides evidence of Earth’s changes over time.


Coming soon!

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