A slideshow and a short multiple-choice quiz on the topic of seasons and how they are caused by the Earth's rotation and orbit.

Students learn how engineers navigate satellites in orbit around the Earth and on their way to other planets in the solar system. In accompanying activities, they explore how ground-based tracking and onboard measurements are performed....

[Free Registration/Login Required] An informational text about some of the objects circling the Earth. A question sheet is available to help students build skills in reading comprehension.

How do we communicate with each other? How do we communicate with people who are close by? How do we communicate with people who are far away? In this lesson, students will explore the role of communications and how satellites help...

This site provides a Java-based program called Mars24. You can download this to your computer to keep track of time on Mars.

This unit will use demonstrations and student examples to help students gain an understanding of rotation, revolution, and orbit. Through hands-on activities students will explore the concepts of day and night. Technology will be...

A brief outline of the third American Earth orbit mission. Links to other NASA websites are available.

Find out what the seasons are and how they change. Through the use of excellent graphics, content explores the Earth's orbit around the sun and how sunlight reaches the earth at equinox and the winter solstice.

After listening to excerpts from four of the violin concertos from "The Four Seasons" by Italian composer and violinist, Antonio Vivaldi, decide which excerpt was meant to go with which season, and also decide where the earth would be in...

This webpage uses diagrams and video to explain the causes of the seasons.

Here is a clear, simple picture of the solar system. Click on the names of the planets to learn more about each. Clicking on underlined terms takes you to more and more detailed scientific information.

This activity is designed to assess a student's comprehension of a basic meteorological phenomenon.

Discusses the information from the NASA spacecraft Messenger as it orbits Mercury and transmits photographs of the planet's surface to Earth.

Discover how satellites that orbit the Earth can save lives. Then use images obtained by satellites to construct a three-dimensional paper model of the Earth.

An online version of a book pertaining to task of launching rockets into space and subsequently navigating them through space. The first several "chapters" (pages) describe the influence of gravity on Earth and the barriers which it...

This lesson will analyze the role of the sun and moon relative to the earth's orbit. It is 3 of 4 in the series titled "The Sun and Moon."

This lesson will analyze the role of the sun and moon relative to the earth's orbit. It is 4 of 4 in the series titled "The Sun and Moon."

This site from NASA provides a detailed description of events following the successful 3 Earth orbit mission of the Friendship 7 Mercury spacecraft.

Explains the design of a simple device that shows the progress of the phases of the Moon on its 29 1/2 day orbit around the Earth.

Where is our Solar System? How far away is the sun? What makes up the sun? Find out all you want to know about our solar system. This is a comprehensive on-line site about space and astronomy. Check out all of the excitement!

This site from the Astronomy Department of Cornell University provides brief introduction to both solar and lunar eclipses. Links are provided for pictures and charts of the eclipses, and this is a good site to check out on the subject.

This site from NASA has information on the Galileo space mission, which launched in October 1989. In spite of technical problems, Galileo transmitted enormous amounts of new data, especially about Jupiter and its satellites and rings,...

Students perform many inquiry activities related to Earth's orbit. Included are recording daily temperatures, observing the sun's path over several weeks, tracking sunrise and sunset times, and angle of sunlight. Diagrams make lessons...

Students perform many inquiry activities related to Earth's orbit. Included are recording daily temperatures, observing the sun's path over several weeks, tracking sunrise and sunset times, and angle of sunlight. Diagrams make lessons...