questions for jonathan and julia

1. Why are you measuring salt?
2. What kind of hands on work are you doing?
3. Have you seen any animals? if so what kind?

Questions For Jonathan and Julia

1. What are u looking forward to studying?
2. What kind of fish do you see if any?
3. Having fun?

Geologic Time Line

How many eras, eons are there? 11 periods

What are the differences between eras and eons? Eons were the first longest division of geologic time and eras is the second long and distinct period.

Why did scientist create eras and eons? They made it to divide things in to separate time frames .

What were three major geological events in history of the earth? Ice Age, Dinosaurs being extinct, Humans on earth.