hello, earthman!
DESCRIPTION
elementary earth scienceTRANSCRIPT
Hello, Earthman!
What do you know about earth
Earth factsGalaxy: Milky WayStar System: SunPlanet Type: TerrestrialSize: MediumSatellite: 1 (Moon)Nickname: The Blue PlanetNotes:
The only planet in the solar system that could support life.
Earth Movement
RotationThe spinning of the
Earth on its own axis
AXIS - an imaginary line
that runs through the North and South poles
Rotation
AXIS
Observe the direction of the spin.
Rotation
WEST
NORTH
EAST
SOUTH
Rotation
Earth is tilted on its axis at 23 ½ degrees
AXIS
:Check
Which part of the Earth gets the most sunlight?
What countries are these?
Review
• Rotation is the spinning of the Earth on its axis
• 1 complete rotation = 1 Earth day
• Earth rotates from WEST to EAST or counterclockwise
• Earth is tilted at 23 ½ degrees
Revolution
The movement of a planet around the Sun in a path called an orbit.
ORBIT
Revolution OLD STYLE
Geocentric – Earth as center of the system
Revolution
Earth around the Sun
Earth’s revolution causes change in
season.
Revolution
Seasons
SPRING
FALL
WINTER
SUNSUMMER
:Check
Why is it colder during the month of December?
And why is it hot during April?
Why does it not snow here?
Review
• Revolution is a planet’s movement around the Sun
• Orbit is the path followed by a planet• 1 rev. = 1 Earth year = 354 ¼ days• Earth revolves counterclockwise• Revolution causes change in season
Earthman,Signing Off…
The End