What is Earth Day?
Earth Day: How it started and why it matters | CBC Kids News
Earth's Evolution in 10 Minutes
Gaylord Nelson and the Origins of Earth Day
Our Planet, Our Home┃ An Earth Day Perspective
Earth 101 | National Geographic
The Evolution of Life on Earth
What is Earth Day? The History & The Now
SHOCKING! Earth's Day Wasn't Always This Long: New Theory Revealed
4.5 Billion Years in 1 Hour
Gaylord Nelson speaking before the first Earth Day
Our Story in 1 Minute
What Earth in 2050 could look like - Shannon Odell
Full History of Earth in 10 Minutes
Google Earth Timelapse shows how planet has changed in past 37 years
The History of Earth - How Our Planet Formed - Full Documentary HD
Earth Day and one of the first environmental laws passed in the United States.
EARTH'S ROTATION & REVOLUTION | Why Do We Have Seasons? | The Dr Binocs Show | Peekaboo Kidz
Earth Day 2022 in 5 minutes
How the first Earth Day started a movement.