DOGO Media
Dogo News: Spacewalks Have Come a Long Way in Fifty Years!
Learn about the evolution of spacewalking over the last fifty years. Includes video.
Curated OER
Science Kids: Science Images: Earth Horizon
This beautiful NASA image taken from the International Space Station as it makes its way over the Pacific Ocean shows the Earth horizon illuminated by light from the Sun.
Khan Academy
Khan Academy: What Is Newton's First Law?
Newton's First Law also called the law of inertia is the most important thing to realize about motion. This article offers more information on motion and explains solved problems involving Newton's First Law. Also included is a video...
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Does Air Really Exist?
Given a teacher demonstration and various learning stations, the students learn that air is a real substance which occupies space, exerts pressure, and has weight.