Over the weekend I started a Geologic Time Period timeline that showed accurately the time between each period. Click image for larger view.

Geologic Timeline on our wall

Geologic Timeline on our wall

I had more plans for it, but should’ve known better. The Quaternary period is so tiny you can barely see it! How will I fit early humans in there? (Satori is fascinated with them.) The huge benefit of that timeline is that it is right next to our Universe Wall Timeline, so not only can we see at a glance 15 billion years ago and visually how very long ago that is compared to the formation of Earth and the first life, but we can see in greater detail the different periods that life went through. Although not yet complete of course, I love it. Hopefully I can do it justice so it can hang on our wall for awhile. 🙂

However, I wanted to get equal space for each time period, so tonight I started a new one. I laid our colorful file folders for each period. My idea was for these to be super-interactive for our family. Firstly, they will stay separate and have  magnetic dots attached on the edge so we can mix them up and have Satori place them in the correct order. Secondly, I attached velcro squares to the middle, and printed off animal images also with Velcro. Now we can put all animal images in a pile and have Satori put them up on the right period. You may think this is too advanced for a four year old, and it probably is, but Satori actually knows quite a bit about ancient life.

I used a Trace font, set it to vertical, printed it out and had Satori trace it. Good handwriting practice!

Satori tracing "Cambrian"

Satori tracing "Cambrian"

Then I printed out images of sample creatures representative of each period. Satori found these lying on the floor and proceeded to glue them on before I could catch her! I carefully peeled them off and quickly put their velcro back on. Using a blue sheet for “sea”, and beige sheets for “land”, I pasted them on each period. The early periods like Cambrian of course only had “sea”. Then Satori placed the creatures on! As you can see, our magnetic backing allows us to put the period up on our magnetic whiteboard. 🙂 Satori LOVED this activity.

Cambrian animal images on timeline

Cambrian animal images on timeline

I have yet to finish the rest of the ages, but here’s my start. You can easily read the period, see at a glance if it had land and/or sea creatures, and there’s room for a few more things. Along the right side, I’ll be putting facts up (like first amphibians) and on the upper right corner, a view of what the earth looked like, and finally, along the top, the exact time period in years.

A good start

A good start