March Quiz
Published: April 2, 2007
Week 4: Q
When you turned in your last assignment at school that contained more than one page, how did you hold it together? With a paperclip? You used an invention of Johan Vaaler, a Norwegian inventor! A rather simple twisting of thin line replaced a method in use for over 600 years previously. What was that system? Try: http://inventors.about.com/library/
inventors/blpaperclip.htm
A:
Yes, sir, waxed ribbons through the upper margin of papers!
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A: Well, among the several listed on that page, I chose Baking Powder added to the feet inside socks to dry and deodorize!
Week 2: Q Gorillas are hugh! They are strong and move about mostly on land. They are endangered in the wild as people take up their habitat. The movie character King Kong is based on a gorilla, although real gorillas are not quite that large. The gorillas live in Africa. What does a gorilla sound like? Try: http://www.nationalgeographic.com/kids/
creature_feature/0007/gorillas.html.
A: Click on the audio button at that web site for National Geographic and you will hear one!
Week 1: Q Strange creatures live in the sea! You know about unusual fish and squids and jellyfish. But what about creatures that are hard to identify as animals, which they are? Take the sea urchin for example. It has many spines sticking out from it. It eats kelp. It is radially symmetrical, that is, it’s body goes outward from a central point, like a star fish. How big does one of the largest of the sea urchins, the red sea urchin, tend to get? The red sea urchin is found along the coast from California north to Alaska. Try: http://seaurchin.org/
Sea-Grant-Urchins.html#red.
A: About seven inches in diameter!
Q: I need to know about nematodes for science class tomorrow. What is the big deal about nematodes?
A: Well, for one thing, nematodes are one of the most numerous animals on earth! Thousands are found in samples of soil. Many are microscopic – must be viewed with a microscope. Nematodes are particularly interesting to scientists studying genomics and genes and the prime target of study is the C. elegans worm! It has larger and fewer genes that can be studied in many ways to learn much about gene control of functions in the human body. For an interesting web site on this worm, go to: http://www.sanger.ac.uk/Projects/C_elegans/. Best wishes!
Toolbar sponsored by: David Stanley Ford
Related Topics:
Science and Technology, Nature and the Environment, Sciences, Life Sciences, Wildlife, Biology, Marine Animals, Genetics

