by STAO ADMIN | Nov 12, 2019
This demonstration illustrates the presence and importance of chemistry in everyday objects, including our food. It is an interesting way to start the discussion of acids and bases or to connect acids and bases to the pH scale and extend the discussion to acid-base...
by STAO ADMIN | Nov 12, 2019
There are eight planets in the solar system in two distinct groupings. The four inner terrestrial planets (Mercury, Venus, Earth, and Mars) are very small and relatively close together. The outer planets or gas giants (Jupiter, Saturn, Uranus, and Neptune) are very...
by STAO ADMIN | Nov 12, 2019
The Moon is visible at some point during most nights. If you observed the Moon from one night to the next you would notice that the Moon rises 50 min later each night. With close observation you would see a little bit more or a little bit less of the Moon each night,...
by STAO ADMIN | Nov 12, 2019
The sky has been mystifying civilizations for thousands of years. Many civilizations have performed religious ceremonies and timed agricultural activities based on celestial events such as eclipses and full moons. Arguably the most important benefit of making...
by STAO ADMIN | Nov 12, 2019
An astrolabe illustrates how the sky looks at any given time of day and throughout the year. This is accomplished by drawing the sky (star patterns) on the astrolabe with moveable parts to adjust for the date and time. The traditional sky map astrolabe allowed people...
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