Presentation on theme: "Welcome! You are about to embark on a mind spinning adventure to learn…"— Presentation transcript:
Welcome! You are about to embark on a mind spinning adventure to learn…
Why We have Night and Day! 1. I can describe how night and day are caused by Earths rotation or spinning.
Words to know! Rotation- this refers to the Earths spinning. Imagine sitting in a chair and turning yourself around and around. Axis-imaginary line through the Earth from North to South. Earth spins on this.
Think before you learn! Why do you think we have night and day? 1.The sun rises giving us day. 2.The keepers of day and night switch places each morning. 3.The Earth revolves around the sun. 4.The Earn spins on its axis. 0 of 30 :30
Yay! Its a Day! The Earth spins on its axis. The Earth spins on its axis.
Dizzy Spells Lab Pretend you are the Earth. Pretend you are the Earth. Rotate. Rotate. –Earth rotates counter clockwise. (west to east) Your nose is North America: Your nose is North America: Rotate to show day. Rotate to show day. Rotate to show night. Rotate to show night. Rotate to show dawn. Rotate to show dawn. Rotate to show dusk. Rotate to show dusk. Lab Sheet Lab Sheet
What is one result of the Earths rotation? 1.The sun appears to move in the sky. 2.Earths revolves around the sun. 3.The length of the year. 4.The change from Spring to Summer. 0 of 30 :30
How long does it take the Earth to make one complete turn on its axis? days 2.24 hours 3.3 months 4.31 days 0 of 30 :30
What determines the length of one day on Earth? 0 of 30 :30 1.Time it takes Earth to revolve around the sun. 2.Time it takes the moon to circle the sun. 3.Time It takes the Earth to rotate on its axis. 4.Time it takes the sun to spin on its axis.
What is a result of the rotation of Earth? 1.Four seasons 2.Day and night 3.The calendar year 4.The moons changing size 0 of 30 :30
Why is nighttime so long in Alaska in the winter? 1.The Earths distance from the sun. 2.The speed of the Earths rotation. 3.The moons gravitational pull. 4.The tilt of the Earth on its axis. 0 of 30 :30