Welcome to Science 2/13

Take out your 6 note cards that you made on Friday.

Today’s Schedule1. Schedule for the week2. Question of the Day

3. Earth, moon, sun Part 14. Interactive Activity

Schedule for the Week

• Today- The Seasons• Tuesday- Moon Phases• Wednesday- Eclipses• Thursday- Mrs. Pietrocini• Friday-Projects & Presentations

Question of the Day• At which diagram will Ohio experience the

season of Summer?

The Earth Moon SunRelationship Part 1

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.

 

Spring Summer Fall Winter

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

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

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

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

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.