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Our Solar System
Transcript of Our Solar System
The planets only reflect
the light they receive,
but the stars emit light
produced in their interior.
The Sun is very
important for us.
The Sun gives off heat and
light that the Earth needs to
support life (us).
Unlike the Earth, the Sun
is completely gaseous;
there is no solid surface on the Sun
Our Solar neighborhood is an
The Solar System is full of planets,
moons, asteroids, comets, minor planets...
and many other exciting objects.
The Solar System consists
of eight planets.
The orbits are not round
but elliptical which means
This video will show you
how the planets revolve around
Notice how the planets
closest to the Sun revolve
around it faster than the
planets farther from it.
Starting from the one closest
to the Sun they are:
Remember that Pluto is no longer
an official planet. It is now called a dwarf planet.
The first four planets are called
the inner planets.
They are made mostly of rock
so they are known as :
and as they are closest to the
Sun, they are very hot.
They are known as "Gas Giants"
because they are made mostly of gases.
Comets are big balls of
ice, rocks and gas.
They are dirty snowballs made of
leftovers from the beginning of our
Their coma, or tail, can either be
behind the comet or in front of it.
An Asteroid is a large
rock in outer space.
Asteroids do not have enough
gravity to pull themselves into
the shape of a ball.
Our Solar System
We see them every night.
What are they?
to this online lesson.
My name is Lilly Cardoso.
I live in León, Guanajuato.
I'm an English teacher for
We will learn about some characteristics of the planets in the solar system.
The Sun is nearly 145 million km from Earth.
Closest to our Sun
Small rocky planet
Covered with craters
88 days rotation around the Sun
Only one side with light
Dark side extremely cold
Second planet from the Sun and 6th largest
Hot temperature due to "Green House Effect"
Earthly life could not survive here
Rocks can handle the high temperature and crushing pressure
Small rocky planet with a variety of life
Moves around the Sun
Moon goes around Earth
Moon smaller than Sun
384,400 kilometers from Earth
Disarranged mountains, valleys, old volcano sites, and many bowl-like holes called craters
Regulates the ocean tides on Earth
Keeps the Earth's tilt on its axis
Small rocky planet
No seas, always cold
Very thin air
Smaller than Earth but bigger than Earth's moon
Poles made up of solid carbon dioxide
Very strong winds and vast dust storms
5th planet from Sun and largest of all
Made up of gases
"The Great Red Spot"
from Sun and 2
Made up of gas
Six rings around it made of bits of ice
53 official moons
Cold gas giant planet
Made up of of mostly rock and various ices
Faint ring system
21 known moons
It sits on its side
Cold, giant gas planet
Made up of mostly rock and various ices
Half as big as Saturn
Its bluish color comes from its atmosphere of methane gas
Eight known moons
You have successfully studied our Solar System. Remember that the sun is a vital part of our lives and is not only the core of our Solar System, but the thing that keeps Earth alive.
Answer the questions.
1. How many planets and dwarf planets are in our Solar System? ____________________________________
2. Which planet is nearest the Sun? _______________________
3. Which planet is farthest from the Sun? _______________________
4. Which planet is the biggest? _______________________
Eight planets and a dwarf planet called Pluto.
5. Which planet has the biggest, most easily-seen rings orbiting it? _____________________
6. What is at the center of our Solar System?_______________________
7. Are the inner planets made of rock or gas? ________________________
8. Which planet is called the "red planet" and why?
They are made mostly of rock.
Mars due to the presence of iron oxide dust or rust
Called the Red Planet