Download - Welcome to Science 2/13
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Welcome to Science 2/13
Take out your 6 note cards that you made on Friday.
Today’s Schedule
1. Schedule for the week
2. Question of the Day
3. Earth, moon, sun Part 1
4. Interactive Activity
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Schedule for the Week
• Today- The Seasons
• Tuesday- Moon Phases
• Wednesday- Eclipses
• Thursday- Mrs. Pietrocini
• Friday-Projects & Presentations
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Question of the Day• At which diagram will Ohio experience the
season of Summer?
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The Earth Moon SunRelationship Part 1
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How are the sun, moon, and Earth related?
By their movements.
• 1. Rotation- the spinning of Earth on its axis• 2. Revolution- the movement of the Earth &
moon around the sun. the movement of the moon around Earth Explore a model of Earth's daily rotation. Explore a model of Earth's yearly revolution around the sun.
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Spring Summer Fall Winter
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The Seasons of EarthQ. Why does Earth have different seasons?
• A. Earth has different seasons because its axis is tilted as it revolves around the sun.
• Earth’s axis is always tilted at 23.5 degrees.
• Seasons_Interactive.swfEarth-Sun Relations
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Solstice• Twice each year the sun reaches its greatest
distance north or south of the equator.
• Summer solstice- the day when the sun is farthest north of the equator. June 21
• Winter solstice- the day when the sun is farthest south of the equator. December 21
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Equinox
• Halfway between the solstices. Twice a year. Means “equal night” 12 hours of day 12 hours of night
• Vernal equinox- start of spring. March 21
• Autumnal equinox- start of fall. Sept. 21
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The Midnight Sun or Noon Moon• What do you think happens at the poles during
the solstices?
• Areas around the poles experience 24 hours of daylight during the summer months.
• http://science.sbcc. Seasons_Interactive.swf
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Skills Lab• Earth experiences changing seasons because of the
tilt of Earth’s axis and its revolution. • Objective: Create a model using clay that represents
the relationship between the Earth, sun, and the changing seasons.
• Procedure:• 1. Chose 1 color and create a model of the sun.
Remember: The sun is much larger than Earth.• 2. a. Use the 2nd color and create 4 models of Earth b. Take the skewers and insert them through the Earth’s so that Earth’s axis is tilted roughly at 23°• 3. Create a model in which the Earths circle the sun
and are in the proper position according to the seasons.