What is the Most Important Idea from this Unit?

I think the most important idea from this unit is the Big Bang.
Big Bang

• Make a Comic
• Make a Skit
• Watched a Video
• Explained/Learned about gravity

I think in another five years I will remember that we learned about gravity in sixth grade.I'll remember gravity, Because I learned it very 

I will also remember studying about stars

Stars

• Star Graph
• Life Cycle of a Star Video

In five years I will remember Life Cycle of a Star the Video.

We studied more about the solar system

Solar System

• Life on other Planets
• Impact Crater Lab

In five years I will remember the Life on other planets project, because I found it really interesting and researched a lot about that.