K12 Reader
Why Does the Moon Orbit Earth?
Have you ever looked up at the moon and wondered why it looks different every night? Learn about the moon's orbit and the lunar cycle with a reading comprehension exercise. Using context clues, kids find the definitions of unfamiliar...
Voyage Solar System
Round and Round We Go — Exploring Orbits in the Solar System
Math and science come together in this cross-curricular astronomy lesson plan on planetary motion. Starting off with a hands-on activity that engages the class in exploring the geometry of circles and ellipses, this lesson plan then...
NASA
Chasing Down a Satellite
Calculate the speed of the International Space Station. By reading the article, pupils learn about the concept of orbits. Scholars work through a formula to determine how fast the International Space Station is traveling to stay in...
Curated OER
Universal Gravity and Kelper's Laws Worksheet
High school physicists apply their knowledge of planetary motion. Using Kepler's three laws, Newton's law of universal gravitation, and the provided properties of the moon, sun, and Earth, they proceed to solve 23 problems. An answer key...
McGraw Hill
Escape Velocity Interactive
How hard do you need to throw a ball in the air so that it never returns? Scientists call this measure the escape velocity. Classes can explore this concept through an intriguing interactive lesson. Pupils adjust velocities and observe...
CK-12 Foundation
Newton's Cannon
Gravity does more than keep our feet on the ground — it holds a satellite in orbit, too. Help learners understand the effects of gravity on an orbiting object through a simulation activity. Individuals adjust a launch speed and watch as...
American Museum of Natural History
Cosmic Connection
Do you see what I see? Individuals view eight images from the Hubble Space Telescope and then determine exactly what is being shown in the images. The pictures range from the rings of Saturn to views of billions of galaxies that take up...
Laboratory for Atmospheric and Space Physics
Looking to the Future
New Horizons set forth on a mission to Pluto in 2006. Ten years later, the spacecraft is still on its way. Here, enthusiastic scholars predict what they will be like—likes, dislikes, hobbies, etc.—when New Horizons arrives at its...
American Museum of Natural History
One-on-One With The Sun
Follow along as Stella Stardust interviews the sun. A fun and informative interview provides scholars with information about the sun.
American Museum of Natural History
Journey to the Stars
Fifteen detailed pictures and informative captions delve deep into the exploration of stars—their life cycle and importance in the universe.
American Museum of Natural History
A Closer Look at Mars
A website looks at how we know so much about Mars—telescopes, robots, and spacecraft—and the search for martian life. Following the informational text are three questions that quiz pupils about possible life on Mars.