California Academy of Science
Which Way is North?
Who needs a compass to find cardinal directions? Just place a stick in the ground and record the movement of its shadow over the course of a day. Then, measure the shadow lengths in order to determine a north-south line. A simple...
Curated OER
Seasons of the Year
Students explore season change. In this season change lesson ,students investigate weather events, Earth's movement and celestial events. Students watch videos and list weather events that happen in winter, spring, summer, and fall....