NOTES Solar and Lunar Eclipses Chapter 6.2

What does ECLIPSE mean? The partial or complete blocking “darkness” of one celestial body by another The partial or complete blocking “darkness” of one celestial body by another

What causes an ECLIPSE? The revolution of the Moon The revolution of the Moon

ECLIPSES occur… ECLIPSES occur when the Earth or Moon temporarily blocks sunlight from reaching the other ECLIPSES occur when the Earth or Moon temporarily blocks sunlight from reaching the other ECLIPSES can ONLY occur when the Sun, Moon, and Earth line up perfectly ECLIPSES can ONLY occur when the Sun, Moon, and Earth line up perfectly

SOLAR ECLIPSE Solar Eclipse (Solar = Sun Eclipse = Blocked) Solar Eclipse (Solar = Sun Eclipse = Blocked) Can only occur during the New Moon phase Can only occur during the New Moon phase Can only occur during daytime hours Can only occur during daytime hours Occurs when the Moon moves directly between the Sun and Earth and it casts a shadow over part of the Earth Occurs when the Moon moves directly between the Sun and Earth and it casts a shadow over part of the Earth Umbra – total shadow (umbrella) Umbra – total shadow (umbrella) Penumbra – partial shadow Penumbra – partial shadow

SOLAR ECLIPSE SUN MOONUMBRA PENUMBRA EARTH

SOLAR ECLIPSE

The visible part of the Sun during a total eclipse is called the Corona (crown) The visible part of the Sun during a total eclipse is called the Corona (crown) CORONA

LUNAR ECLIPSE Lunar Eclipse (Lunar = Moon Eclipse = Blocked) Lunar Eclipse (Lunar = Moon Eclipse = Blocked) Can only occur during the Full Moon phase Can only occur during the Full Moon phase Can only occur during nighttime hours Can only occur during nighttime hours Occurs when the Moon moves into Earth’s shadow; the Earth is between the Sun and the Moon. Occurs when the Moon moves into Earth’s shadow; the Earth is between the Sun and the Moon.

LUNAR ECLIPSE SUNEARTH MOON PENUMBRA UMBRA PENUMBRA

LUNAR ECLIPSE

Winter Solstice Lunar Eclipse Lunar Eclipse Video Lunar Eclipse Video

Time to Demonstrate… Create a Solar and Lunar Eclipse! Create a Solar and Lunar Eclipse! Captains-Grab the baggie of Numbers… Captains-Grab the baggie of Numbers… 1-Moon (white dough) 2-Earth (blue dough) 3-Sun (light) 4-Orbit (pipe cleaner) 5-Manager/Fact Checker (use notes to verify)

Time to Demonstrate… 1-Moon (create a 1-inch ball) 1-Moon (create a 1-inch ball) 2-Earth (create 4-inch ball –all the dough) 2-Earth (create 4-inch ball –all the dough) 3-Sun (turn on light when time) 3-Sun (turn on light when time) 4-Orbit (stick the ends of the pipe cleaner in either side of the moon to create an “orbit”) 4-Orbit (stick the ends of the pipe cleaner in either side of the moon to create an “orbit”) 5-Manager/Fact Checker (use notes to verify accuracy of group diagram) 5-Manager/Fact Checker (use notes to verify accuracy of group diagram)

Time to Demonstrate… SOLAR ECLIPSE

Time to Demonstrate… LUNAR ECLIPSE

WRAP-UP! What does ECLIPSE mean? What does ECLIPSE mean? What are the two types of ECLIPSES? What are the two types of ECLIPSES?

Thinking Questions: Which eclipse lasts longer? Solar or Lunar? Why? Which eclipse lasts longer? Solar or Lunar? Why? Why have only a few people experienced a total solar eclipse? Why have only a few people experienced a total solar eclipse?

EXIT SLIP: 2. Solar or Lunar 1. Solar or Lunar