Formative using Gizmo for students to explore eclipses.
Warm-up: Why do we see phases of the moon?

Where does their shadow fall?
Is it possible for them to place their hand so they no longer see the lamp?
When their hand blocks their view of the lamp, where does the shadow of their hand fall?
How does the view of the Sun from Earth change?

What do you think causes a solar eclipse?
How are the Earth, Moon, and Sun arranged at this time? Sketch them below. (Show Earth, Moon, and Sun in your sketch)
During a solar eclipse, what is causing the Earth's view of the Sun to be darkend?
What is needed for this to happen?

What do you think causes a lunar eclipse?
Sketch and label the Earth, Moon, and Sun at this time.
What causes the Moon to be darkened in a lunar eclipse?
How does this view change?