Error finding ID 1962 in

Error finding content SELECT * FROM win_content WHERE PageID=1962 AND Element=3 AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element Video

Error finding ID 1962 in

Error finding content SELECT * FROM win_content WHERE PageID=1962 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 1963 in

Error finding content SELECT * FROM win_content WHERE PageID=1963 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 1964 in

Error finding content SELECT * FROM win_content WHERE PageID=1964 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 1966 in

Error finding content SELECT * FROM win_content WHERE PageID=1966 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 1967 in

Error finding content SELECT * FROM win_content WHERE PageID=1967 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 1969 in

Error finding content SELECT * FROM win_content WHERE PageID=1969 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 1970 in

Error finding content SELECT * FROM win_content WHERE PageID=1970 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 1971 in

Error finding content SELECT * FROM win_content WHERE PageID=1971 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 4178 in

Error finding content SELECT * FROM win_content WHERE PageID=4178 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 4179 in

Error finding content SELECT * FROM win_content WHERE PageID=4179 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 4180 in

Error finding content SELECT * FROM win_content WHERE PageID=4180 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 4181 in

Error finding content SELECT * FROM win_content WHERE PageID=4181 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 4182 in

Error finding content SELECT * FROM win_content WHERE PageID=4182 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 4183 in

Error finding content SELECT * FROM win_content WHERE PageID=4183 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 4184 in

Error finding content SELECT * FROM win_content WHERE PageID=4184 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 4185 in

Error finding content SELECT * FROM win_content WHERE PageID=4185 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 4186 in

Error finding content SELECT * FROM win_content WHERE PageID=4186 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 4187 in

Error finding content SELECT * FROM win_content WHERE PageID=4187 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 4188 in

Error finding content SELECT * FROM win_content WHERE PageID=4188 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 4189 in

Error finding content SELECT * FROM win_content WHERE PageID=4189 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 4190 in

Error finding content SELECT * FROM win_content WHERE PageID=4190 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 4193 in

Error finding content SELECT * FROM win_content WHERE PageID=4193 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 5984 in

Error finding content SELECT * FROM win_content WHERE PageID=5984 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 6036 in

Error finding content SELECT * FROM win_content WHERE PageID=6036 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 6435 in

Error finding content SELECT * FROM win_content WHERE PageID=6435 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 6640 in

Error finding content SELECT * FROM win_content WHERE PageID=6640 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 6730 in

Error finding content SELECT * FROM win_content WHERE PageID=6730 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 6731 in

Error finding content SELECT * FROM win_content WHERE PageID=6731 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 6809 in

Error finding content SELECT * FROM win_content WHERE PageID=6809 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 6813 in

Error finding content SELECT * FROM win_content WHERE PageID=6813 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 6937 in

Error finding content SELECT * FROM win_content WHERE PageID=6937 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 7214 in

Error finding content SELECT * FROM win_content WHERE PageID=7214 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 7218 in

Error finding content SELECT * FROM win_content WHERE PageID=7218 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Error finding element ImageSmall

Error finding ID 7506 in

Error finding content SELECT * FROM win_content WHERE PageID=7506 AND Element= AND (Level='elem' OR Level='all') AND Lang='en'

Sharks - Windows to the Universe
This shark is looking for its next meal.
Click on image for full size
Windows Original, adapted from Corel Photography

Sharks

Look out! It's a shark!

Don't worry! Sharks aren't as mean as they look. Sharks are more scared of you than you are of them. Most sharks eat fish or crustaceans. Humans aren't on their menu!

The great white shark is very famous. Movies like Jaws make it well known. Great whites can grow to over 25 feet long! There are not very many left today.

There are many other types of sharks, like the blue, nurse and horn shark. They are all smaller than the great white. The horn shark hides under rocks during the day.

The whale shark is the biggest one of them all! He can grow to 40 feet long! It feeds on plankton and is very slow and peaceful.

You might also be interested in:

Traveling Nitrogen Classroom Activity Kit

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

Life in the Open Ocean

The open ocean is the largest area of the marine ecosystem. It reaches from coasts to the middle of the ocean. The living things that survive in the open ocean need to have a way to float or swim in ocean...more

Can there be Life in the Environment of Jupiter?

Jupiter's atmospheric environment is one of powerful winds, going 250 miles per hour, and temperatures from -270 degrees to +32 degrees (freezing temperature). These winds make it hard for life forms to...more

The possible discovery of Life on Mars

In July, 1996 a team of scientists said that they had discovered possible fossils of bacteria in a meteorite named ALH84001 that came from Mars. It was found in Antarctica in 1984 after having landed there...more

The Environment of Saturn

Saturn's atmospheric environment is one of powerful winds, going 250 miles per hour, and temperatures from -270 degrees to +80 degrees. With winds like these, it is hard to have peace and quiet. The region...more

Can there be Life in the Environment of Titan?

The air of Titan is a lot like the Earth's, except that it is very cold, from -330 degrees to -290 degrees! Like the Earth, there is a lot of Nitrogen and other complex molecules. There also may be an...more

Autotrophs

Organisms that are able to "make their own food" are called autotrophs, meaning "self-feeders". Some examples of autotrophs are plants and algae (shown in the picture). Both plants and algae use photosynthesis...more

Coacervates

In the warm early ocean, large molecules came together into a form called *coacervates*. Molecules such as these will form coacervates in the same way that beads of vinegar in oil come together. These...more

Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information. NASA ESIP NCSE HHMI AGU AGI AMS NOAA