Earth’s Moon
Earth and the Moon are more like a double planet than a planet and a moon. The Moon is quite […]
Earth
But it was only in the sixteenth century, around the time of Copernicus, that people began to see Earth as
Rock Cycle
This activity combines the concept of Earth’s rock cycle with the characteristics of other planets in the solar system. After
Scale Models
Without being informed of the expected product, the students will make a Play-doh model of the Earth-Moon system, scaled to
Exploring Our Own Back Yard
The structures of the terrestrial planets are similar. Each planet has a layered structure that developed through a process called
How was the size of Earth first measured?
Earth’s circumference was first accurately measured more than 2,000 years ago by the Greek astronomer Eratosthenes, who at the time
How fast is Earth moving through space?
To begin with, Earth is rotating on its axis at the familiar rate of one revolution per day. For those
What causes the Northern and Southern Lights?
The famous Northern and Southern Lights — Aurora Borealis and Aurora Australis for those Latin lovers among us — are
What is the nearest star?
Of course, the nearest star to Earth is the one we see every day — our dear old Sun. At
What causes tides?
For the most part, the rise and fall of the tides is caused by the gravitational influence of the Moon.