NASA
Nasa: Great Images in Nasa
Fascinating collection of images from NASA, chosen for their historical or aesthetic significance. Images are searchable by subject, by NASA center, and by keyword, and each is available in three sizes. With links to more information...
Cornell University
Cornell University: Astronomy: Aristarchus
This site from Cornell University provides a discussion of how Aristarchus arrived at his conclusions of the distance from the Earth to the Sun and Moon. Also has his methods for determining the size of the Moon and the Sun.
Ministerio de Educación (Spain)
Observaciones Y Modelos en Astronomia
How does the length of the day change? How does the height of the sun change? Do we always see the same star? The answer to these questions and different observations about the sun, the moon and the stars that we can do from earth can be...
CK-12 Foundation
Ck 12: Physical Science: Orbital Motion
[Free Registration/Login may be required to access all resource tools.] Orbital motion and why it occurs, and the orbits of the Earth around the sun and the moon around the Earth.
Nine Planets
The Nine Planets: An Overview of the Solar System
A detailed overview of the history, mythology, and current scientific knowledge of each of the planets and moons in the solar system.
Annenberg Foundation
Annenberg Learner: Teachers' Lab: A Private Universe
This section is dedicated to educators to become expert instructors on topics like: distance between Earth, the Sun, and the moon, the phases of the moon, and reason for the seasons. Site includes information about how to address...
MadSci Network
Mad Scientist: Why High Tide Away From the Moon or Sun?
An excellent and thorough answer to the often asked question about high tide "bulges" on the side of Earth facing away from the Moon or Sun.
ClassFlow
Class Flow: Phases of the Moon
[Free Registration/Login Required] This flipchart demonstrates how the positions of the Earth, Moon and Sun cause phases of the Moon. It also illustrates the positions of the Earth, Moon, and Sun during a day and a month's time.
Utah Education Network
Uen: Trb 3:1: Investigation 4: Day and Night
A lesson for third graders in which they learn about the rotation of the Earth on its axis and how this movement creates day and night. They also examine the orbit of the moon about the Earth and the Earth's orbit around the sun.
Enchanted Learning
Enchanted Learning: Earth's Oceans Tides
This site explains what tides are and the difference between Proxigean Spring Tides, spring tides, and neap tides, and how these are formed. Graphic illustrations are provided.
Ducksters
Ducksters: Earth Science for Kids: Ocean Tides
Did you know the rising and falling of the sea level is caused by the gravity of the Moon and the Sun? Kids learn about ocean tides including tidal currents and types of tides on this site.
Exploratorium
Exploratorium: Third From the Sun
This site offers a short history of the evolution of the space program and man's quest for more revealing and detailed pictures of the earth.
![Text Project: Fyi for Kids: The Tides [Pdf] Article](https://static.lp.lexp.cloud/images/attachment_defaults/resource/large/FPO-knovation.png "Text Project: Fyi for Kids: The Tides [Pdf] Article")
Text Project
Text Project: Fyi for Kids: The Tides [Pdf]
This FYI for Kids (Volume 5, Issue 3) focuses on the tides. It explains the pull on the earth by the sun and moon and how the tides go in and out.
Khan Academy
Khan Academy: How Our Solar System Formed
An article describing how the sun, planets, moons, and beyond Pluto was formed. Learn more about the beginning of our solar system.
National Earth Science Teachers Association
Windows to the Universe: Geb
This article outlines the ancient Egyptian myth in which Geb, the Earth god, and Nut, the sky goddess, marry without the approval of the powerful Sun god, Re.
Other
Phy6: De Astronomos a Astronaves
This site contains four main categories: Astronomy of the Earth's motion in space, Newtonian mechanics, the sun and spaceflight and spacecraft.
American Geosciences Institute
American Geosciences Institute: Astronomy
Eight hands-on lessons module in which students explore the characteristics of planet Earth, its moons, the sun, the solar system, planets, and the difference between science fact and science fiction.
Utah Education Network
Uen: The Night Sky
Learn about the rotation of the earth, the movement of the moon, and the position of the sun.
PBS
Pbs Learning Media: Our Solar System Lithograph Set
View these amazing high-quality images of our solar system from NASA with this lithograph set. Each lithograph contains images, facts, dates, and general information on a particular subject. Background information and teaching tips are...
Better Lesson
Better Lesson: Our Sky
What objects are in the day sky and the night sky? How do they seem to move? Come and explore with us as we discover the sun, moon, planets and stars! This detailed lesson plan includes pictures and videos of the lesson in action,...
Scientific American
Scientific American: It's Back! Total Solar Eclipse Hits Skies
Discover information about the solar eclipse of the moon cutting between the Earth and the Sun in July 2008. [July 2008]
NASA
Nasa Space Science Data Archive: Ice on Europa
With the exception of Earth, Europa currently appears to be the only body in the solar system which potentially harbors a global ocean of liquid water. The possibility of liquid water raises the possibility of life, as well. This NASA...
NASA
Nasa: Solar System Exploration
Enter our solar system to interact with the planets, moons, asteroids, meteors, and more. Investigate with NASA scientists and explore missions related to space exploration. Read facts, compare statistics, look through resources, and...
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