This interactive globe allows you to get any view of the earth by entering latitude, longitude and season criteria.

This impressive compilation of ideas is a great source for space science. Loaded with extra links for further information on the solar system.

A section of NASA's site that highlights the science activity taking place on the International Space Station. Read latest news and groundbreaking findings, and also learn about the careful planning and preparation that go into conducting experiments on board Space Station.

NASA has discovered water in space. This interactive resource allows you to examine the different planets and moons in our solar system to find out where their water is located.

Learn how krill fight for survival as the sea ice melts and the population decreases. Discover how krill relate to our food chain and learn about their development.

This lesson teaches students about the characteristics of planets, comets, asteroids, and trans-Neptunian objects. After learning about these different things, students then are to debate about a new object that is found in space.

The difference between a code and cipher is explained. See if you can solve a simple cipher challenge at the bottom of the page.

By clicking on "Making a Stone Age Weapon," you will be able to watch the way a Clovis point was probably made. Requires QuickTime, RealVideo, or Windows Media.

Thanks to the Cassini spacecraft, you can view numerous pictures of Saturn's rings. There are also answers to eleven different questions about the rings.

Explore the science behind hot air balloons. Learn what makes them fly. Read about the history of ballooning. Engage in an interview with Steve Fossett, hot air balloon pilot. There is also a virtual flight which requires Shockwave.

In this interactive activity from NOVA Online, learn about a type of exploding star a Type II supernova that is so large it has a mass 10 times greater than the mass of our Sun.

In this interactive activity from NOVA Online, learn about a type of exploding star - a Type Ia supernova - that is so bright that astronomers can measure the distance to the galaxy in which it resides, and even learn which elements make up the star.

PBS site takes a look into a mysterious phenomena as to why and how certain sand dunes produce mysterious noises. Contains a link to watch a broadcast segment of an expedition into the desert as well as a recipe for noisy sands.

This activity is an introduction to the branch of science called dendrochronology. Discover what this science tells us about the past and see if you can create a tree ring timeline by matching up band patterns from several different trees.

This document from NOVA: "Into the Abyss" describes the physical and behavioral traits of some of the least-known and most unlikely creatures on Earth.

How would you do as an epidmeiologist? Find out in this interactive simulation. Your mission will be to interview people and trace the transmission of a mysterious disease.

PBS site provides links to understanding how glacier movement can reveal the effects of global warming. Contains links to view satellite images of glaciers from space, a video clip and slide show about a science expedition to a glacier in Greenland as well as an opportunity to ask an expert about glaciers and global warming.

Lost at sea with only your sextant? Use your knowledge of longitude to find your place. This interactive site makes the concept of longitude concrete. Requires Adobe Flash.

PBS site explores these building blocks of the universe as well as their various types and clusters.

View some before and after pictures of New Orleans to get an idea of the flood damage caused by Hurricane Katrina.