- The sun may appear to be the hottest star because it is big and closest to Earth, but there are stars that are hotter. The sun is a yellow star with an average temperature of 6,000K degrees.
- Vega and Sirius are white stars that have an average temperature of 10,000K degrees. And Mintaka is a blue-violet (the hottest color) star with an average temperature of 30,000K degrees. Betelgeuse is another famous star. Its color is red and its average temperature is 3,000K degrees.
- In 1849 pioneers who are seeking gold in the California desert named the vast area Death Valley. This area, which is over 3 million acres of desert, is known to be one of the driest places on Earth. Death Valley has the lowest, driest and hottest climate in North America.
- The very warm climate in Hawaii is due to its location.
- In 1970 Earth Day was started by the United States Environmental Protection Agency and the passage of the Clean Air, Clean Water, and Endangered Species acts.
- To learn more about how to help our Earth, go to http://www.earthday.net
- Did you know the Earth weighs 6,588,000,000,000,000,000,000,000 tons?
- The lightest of all gases, hydrogen, makes up 90% of all matter in the universe.
- Benjamin Franklin reasoned that bioluminescence is caused by sea life, such as amoebas and other single-celled organisms, that reflect light. http://www.lifesci.ucsb.edu/~biolum/
History, Science &
Reading Comprehension