After teaching for 39 years and I have retired,I have changed the purpose of this blog.From this point on it will be designed for teaching students and teachers about the new information and trends in the science field.
1. Many birds' feathers weigh more than their bones. 2.Your fingernails take six months to grow from base to tip. 3.Honeybees can be trained to detect explosives. 4. Newborn babies are color-blind. 5. It takes 8 minutes and 19 seconds for light to travel from the sun to earth. 6. Saturn's rings are made of ice and rocks. Animals 7. Skunks can shoot their bad-smelling spray only about two yards, but you can smell it up to two and a half miles away. Foxes sometimes nip at the heals of cattle so the stomping of the cattle makes mice and other rodents come out of the ground, for the fox to eat.
8. Dinosaurs probably lived to be between 75 to 300 years of age. Scientists figured this out from looking at the structure of their bones.
9. One way to tell the age of a fish is by looking at its scales. They have growth rings just like trees. These are called circuli. Clusters of them are called annuli. Each annuli show one year.
10. The northern fur seal, rather than using a layer of fat to keep it warm, depends on its thick fur with some 300,000 hairs per square inch.
11. Almost two-thirds of the earths surface is covered by water. If the earth were flat, water would cover everything in a layer two miles deep!
12. During a solar eclipse, the shadows of leaves make the same crescent shape of the eclipsing sun. The image is made by light passing through tiny holes in the leaves.
13. Tired of the cold weather? Take a vacation on the hottest planet in the solar system - Venus. At over 800 degrees, it is hotter than Mercury because the clouds and abundant carbon dioxide hold in most of the heat received from the sun.
14. Geologists have discovered there seems to be more water miles deep between the rocks of Earths mantle than in all the oceans of the world. The intense pressure of the tons of rocks above keeps the hot water from turning to steam and escaping.
15. Water is the only substance on earth that is lighter as a solid than a liquid.