Horizon Education and Media
Tap this Geologic Time scroll and see how long it takes before you see dinosaurs or us!
Use a paper towel roll. One square of paper towel for each page of this 92-page online document. One page is about 50 million years. Mark each paper towel square with what happened (if anything) using the link: tap below to open.
Place a paper under the towels to stop any ink from spreading on furniture.
Optional: print the 92 page document if your parent or teacher gives you permission as this uses a huge amount of ink.
Note the change in life forms along the timeline, do you see any patterns?
Why don't we see much happening in the Pre-cambrian time period?
Each time period begins and ends with a major change, often a massive extinction event. What major organisms are found in each time period?
92-page lifes timeline.Â
Courtesy https://teach.genetics.utah.edu/content/evolution/ancestry/pdfs/geologic%20time.pdf