21 review for the earth's movement
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Exploring Earth Science The Earth and Moon
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Transcript of 21 review for the earth's movement
Exploring Earth ScienceThe Earth and Moon
Travel along and we will find out where we live in space and what we can see
in space.
Do you know what a solar system is?
Do you know what is in our solar system?
Our solar system is made up of an enormous sun and everything that
travels around it.
The closest planet to the sun.
The beautiful planet.
The planet we live on.
The red planet.
The biggest planet.
The king of rings.
A planet made of gases.
The coldest planet.
Planet
A large ball of rock or gas that moves around
the sun.
We live on one of the nine
planets in our system. Other small bodies
called asteroids and comets can be found in our
system also.
Draw the path of the earth around the sun.
OrbitThe planets move in a path around the sun.
StarsA huge ball of hot gases.
(Sun is the nearest star to earth)
• Sunlight comes from the sun to the Earth. The sunlight that warms our faces right now left the sun over eight minutes ago. The sun warms the Earth.
What causes daytime and
night time on the Earth?
What causes the changing of our
seasons?
The spinning around like a top is called rotation. As it spins only one side faces the sun. Day begins when our part of the world turns to face the sun.
Night falls when our part of the Earth turns away from the sun. The side facing away from the sun has nighttime.
This rotation or spinning of Earth causes day and night. The Earth rotates on its axis. The axis is an
imaginary line through its center. It rotates once every 24 hours causing
day and night.
Every day the Earth travels around the sun. The
Earth and the moon travel
together in an orbit around
the sun once a year.
One revolution around the sun equals 365 days. This revolution causes the
changing of the seasons.
• http://kids.msfc.nasa.gov/earth/seasons/EarthSeasons.asp
When the Earth moves closer to the sun, summer returns. When the Earth moves farther away from the sun in its
orbit, winter returns.
Asteroids• Rocks that revolve around the sun.
Meteoroids• Very small objects in space.
