- 1. Have you ever found clues that a landscape was once very different than it is today? For example, have you found seashells in soil far from the ocean?
Teacher’s Questions for Electronic Skin
Teacher’s Questions for Bedbugs
To learn more about David Crystal and language development via the Internet, see www.bangor.ac.uk/news/Crystal.htm (University of Wales, Bangor).
You can learn how instant messaging works at computer.howstuffworks.com/instant-messaging.htm (How Stuff Works).
Information about the Guardian text poetry contest can be found at books.guardian.co.uk/textpoetry(Guardian).
Learn about the WSU Bear Center at www.natural-resources.wsu.edu/research/bear-center/ (Washington State University).
For more information about Lynne Nelson and her grizzly research, including pictures and videos, visit www.vetmed.wsu.edu/features/Bears (Washington State University).
POWER WORDS (from the Yahoo! Kids Dictionary)
engineering The application of scientific and mathematical principles to practical ends such as the design, manufacture and operation of efficient structures, machines, processes and systems.
wavelength The distance between one peak or crest of a wave, such as of light, and the next corresponding peak or crest.
frequency The number of times a specified periodic phenomenon occurs within a specified interval. Waves per second is frequency, for example.
electric field A region of space characterized by the existence of a force generated by electric charge.
Additional information about the Discovery Channel Young Scientist Challenge (DCYSC) is available at school.discovery.com/sciencefaircentral/dysc/ (Discovery Channel) and www.sciserv.org/dcysc/Index.asp(Science Service).
You can learn more about the history of diving, including scuba diving, at www.mtsinai.org/pulmonary/books/scuba/sectiona.htm (Mt. Sinai Medical Center, Cleveland, Ohio).
To see how scuba equipment works, go to entertainment.howstuffworks.com/scuba.htm (How Stuff Works). Information about scuba hazards is available at entertainment.howstuffworks.com/scuba3.htm(How Stuff Works).
For history and other information about zoos, see en.wikipedia.org/wiki/Zoo (Wikipedia).
To learn more about the Denver Zoo's Predator Ridge exhibit, visit www.denverzoo.org/about/newConstruction.asp.
Read about the Minnesota Zoo and its soon-to-open exhibit on Russia's Grizzly Coast at www.mnzoo.com/guests/RGC/rgc.asp.
(adapted from Merriam-Webster online, www.m-w.com)
hydrogen: The simplest and lightest of the elements, it is normally a colorless odorless highly flammable gas.
infrared light: Light made of waves that are too long for human beings to see with their eyes.
fusion: The joining together of atomic nuclei to form heavier nuclei, resulting in the release of enormous quantities of energy.
helium: A light colorless inert gaseous element found especially in natural gases. In the core of most stars, helium is formed when hydrogen atoms join together in fusion.