NASA
Packing for a L-o-o-o-ng Trip to Mars
Pack just enough to fit. Crews determine what personal items to take with them on a trip to Mars. Each team must decide what to take with them on a two-and-a-half year trip to Mars and whether their items will fit within the allotted...
NASA
Water Works on a Blue Planet
Keep within a water budget. Learners find out that less than 2.5% of Earth's water is available to drink—and that there is a fixed amount of water. Scholars read an interesting article comparing the available water to a game of Monopoly...
![Nasa: Atoms and Molecules in Motion, States of Matter [Pdf] Article](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "Nasa: Atoms and Molecules in Motion, States of Matter [Pdf] Article")
NASA
Nasa: Atoms and Molecules in Motion, States of Matter [Pdf]
Everythingin the universeis either matter or energy. All matter is made of combinations of about one hundred basic building blocks, the chemical elements on the periodic table. Going a step further and breaking these elements down to...
American Institute of Biological Sciences
Action Bioscience: Evidence of Evolutionary Transitions
Charles Darwin's theory that all living organisms are connected in some way has been confirmed through intense studies over centuries. Understand the similarities that bond all things living to the same family tree by checking out this...
Physics Classroom
The Physics Classroom: Image Formation for Concave Mirrors Case A
This animation depicts the path of light to each person's eye. Different people are sighting in different directions; yet each person is sighting at the same image location. In this animation the image location is the intersection point...