Sometimes low, sometimes high, but always in motion! Explore Earth's tidal system in the 10th interactive in a series of 13. Engaging life and earth science students alike, the versatile resource demonstrates cause and effect between...

Get to know our little part of the vast universe. Learners read about the common and not-so-common facts about each of the planets in the solar system. The interactive lesson includes a large amount of information as well as a quiz to...

Searching for an eclipse activity that sends scholars over the moon? Try an interesting interactive to get their minds active! The resource, part of an extensive Space series from PBS Learning Media, uses modeling and data analysis to...

Develop an understanding of the universe. Learners answer 10 multiple choice questions about several topics in astronomy. Questions contain information about the age of the universe, gravitational attraction, galaxies, planets and comets...

Researchers think they have evidence of a new planet deep in our solar system that is the size of Neptune and orbits the sun far beyond Pluto. The orbit simulator shows the orbits of our well-known planets, as well as Pluto and the comet...

A website all about planetary mysteries—it's a one-stop-shop for all things, stars, planets, and space travel. Scholars read an astronomy overview to discover the page's big ideas, then choose from the plethora of resources, including...

In this "Curious?  Will you be eclipsed?" activity, 4th graders answer 4 questions interactively about eclipses, then check answers online.

Go study the universe. Pupils learn seven aspects about astronomy and astronomers. They begin to learn about constellations; distance and motion between objects; gravity; the electromagnetic spectrum; dark matter and energy; and teams of...

In this space science instructional activity, students complete 5 multiple choice questions pertaining to the planets and other space bodies. This is an online interactive quiz. Prior knowledge is assumed.

In this online interactive philosophy learning exercise, students respond to 10 short answer and essay questions about Galileo's contributions to science. 

Help Sarah Jane and her team put the solar system's planets back in order. Following the activity, read more about the sun, the Earth, and its moon, and then take a quick quiz to check for understanding.

What would it be like to travel across the solar system and explore space? Take a look at some of the places that humans might go to someday, and the questions that scientists are asking.

Solar system surface map database. Includes maps of all solid planets and many moons. Maps of gas planets are either based on images taken by Voyager, or are fictitious maps including general storm systems.

A science simulation launches a projectile from the top of a mountain testing Newton's theory introduced in Principia.