A lunar eclipse occurs when a full Moon enters Earth's shadow.
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LIVE VISUAL LAB
SUN
EARTH
Interactive teaching model • relationships are controlled; scale, distance or timing may be simplified and are labeled here.
The big idea
A lunar eclipse occurs when a full Moon enters Earth's shadow.
Earth blocks direct sunlight, although red light bent through the atmosphere can make the Moon appear copper colored.
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HOW SCIENTISTS KNOW
Eclipse timing, shadow shape and atmospheric spectra confirm the geometry.
WORDS TO OWN
lunar eclipseumbrafull Moonatmosphere
!A COMMON WRONG MODEL
Lunar Eclipses is only a name or picture to memorize.
✓REBUILD IT WITH EVIDENCE
Connect lunar eclipses to the observable relationship, evidence and system described in the lesson.
A scientifically true sentence can still create a false picture. This repair makes the relationship visible.
Take learning into real life
Try it together
Use a ball as the Moon, a larger ball as Earth and a stationary lamp as the Sun. Move one body at a time and label every simplified distance. Connect what you notice to lunar eclipses using lunar eclipse and umbra.
GREEN SAFETYOrdinary low-risk activity with normal caregiver awareness.
01TALKWhat do you predict before we try it?02LOOKWhat changed? What stayed the same?03EXPLAINWhich evidence supports your idea?
Check understanding
Which statement best explains lunar eclipses?
Choose the explanation that matches the evidence—not just the most familiar words.
Three things to remember
✓A lunar eclipse occurs when a full Moon enters Earth's shadow.
✓Earth blocks direct sunlight, although red light bent through the atmosphere can make the Moon appear copper colored.
✓Evidence matters: eclipse timing, shadow shape and atmospheric spectra confirm the geometry.
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