Title
Question Set: Change Over Time
NGSS Science and Engineering Practices
NGSS Crosscutting Concepts
NGSS Disciplinary Core Ideas
Table of Contents
- Has Earth always looked the way it does now? Explain your reasoning for your answer.
- The following questions are about the Cambrian explosion.
- Explain what is meant by the term “Cambrian explosion”.
- Describe what life on Earth was like before this event.
- What is the evolutionary significance of the Cambrian explosion?
- The following questions are about extinction.
- What does the term “extinction” mean to you?
- What is a mass extinction event? Define the term using your own words.
- What is the significance of the Permian-Triassic extinction?
- What catastrophe likely caused the extinction of the dinosaurs and other reptile groups?
- If the earth is 4.5 billion years old, calculate the percentage of time the planet has:
- had life on it
- had multicellular life
- had vertebrate animals (beginning during the Cambrian explosion)
- had dinosaurs
- had modern humans
- How are the history of life on Earth and the geology of life on Earth related?