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Become a nitrogen atom in the nitrogen cycle in our Traveling Nitrogen Classroom Activity Kit/Game. See all our games, activity kits and classroom activities.
Sketch based on a Viking pendant representing Freya and her precious necklace around her shoulders.

Njord

Njord was the god of the sea and wind in Norse mythology. He was the father of Freyr and Freya. He was married to the giantess Skadi. Skadi was used to living in the high, icy mountains, and Njord was used to living by the sea. This made it very difficult for them to live together, so eventually they decided to live apart.

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Traveling Nitrogen Classroom Activity Kit

Check out our online store - minerals, fossils, books, activities, jewelry, and household items!...more

Wind

Wind is moving air. Warm air rises, and cool air comes in to take its place. This movement creates the winds around the globe. Winds move at different speeds and have different names based on their speed....more

Arctic Cultures

Inuit Inuit people live in the chilly northern parts of Canada, Alaska (USA), Siberia (Russia), and Greenland. There are many different groups of people in this large area. Most have similar ways of living...more

Ahsonnutli

Ahsonnutli was the sky father and chief god of the Navajo. He created heaven, Earth, and the sky. The four main directions are believed to be supported by giants. Each direction has a specific color: white-east;...more

Amphitrite

In Roman and Greek mythology, Amphitrite was a beautiful sea nymph. Poseidon (Neptune), who was the god of the sea and earthquakes, fell in love with her at first sight. Amphitrite did not respond to his...more

Aphrodite

Aphrodite was the Greek goddess of love and beauty. She was known to the Romans as Venus. To the perfection of her figure and the purity of her features she added an innocent grace. On her sweet face she...more

Apollo

In Greek mythology, Apollo was the son of Jupiter(in Greek Zeus) and Leto (Letona). He was the god of the Sun, logic, and reason, and was also a fine musician and healer. He was known as the god who could...more

Cancer

According to an ancient Greek legend, the figure of a gigantic crab was placed in the nighttime sky by the goddess Hera to form the constellation Cancer. Hera swore to kill Heracles, the most famous Greek...more

Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part by the National Science Foundation and NASA, our Founding Partners (the American Geophysical Union and American Geosciences Institute) as well as through Institutional, Contributing, and Affiliate Partners, individual memberships and generous donors. Thank you for your support! NASA AGU AGI NSF