Curated OER
Lunar Learning
Students learn about the phases of the moon. In this moon phases instructional activity, students learn about what causes the moon to look different to us everyday and how the Earth and Sun's position determine what phase the moon is in.
Curated OER
Earth's Rotation Changes and the Length of the Day
In this Earth's rotation and day length activity, students are given a table with the period of geological time, the age of the Earth and the total days per year. Students calculate the number of hours per day in each geological era,...