Transcript What is a planet? - IHMC Public Cmaps (3)

PLANETS
How many planets are in the
Solar System?
8
Name the eight planets in the
correct order as they go from
the sun.
Mercury Venus Earth Mars Jupiter
Saturn Uranus Neptune Pluto
Clue: My Very Eager Mother Just Sold Us Nine
Pizzas
What are the four inner planets?
Mercury Venus Earth Mars
What are the four outer planets?
Jupiter Saturn Uranus Neptune
What splits the four inner
planets from the four outer
planets?
Asteroid Belt
What is the farthest planet from
the sun?
Neptune
What is the sun?
Average-size star that gives off
light
What two things are the sun
composed of?
Hydrogen and Helium
What are stars?
Huge balls of gas
What is an orbit?
A path that planets follow
around the sun!
What orbits around the Sun?
Planets
What does the Earth orbit?
Sun
What does the moon orbit?
Earth
What two things keep the planets
in orbit and how?
Gravity: Force that pulls the planets toward
the Sun
Inertia: A moving object that tends to keep
moving in a straight line
What would happen to the
planets if gravity were only
working?
Pulled into the Sun
What would happen to the
planets if inertia was only
working?
Go in a straight line and fly off into
space
Why does life exist on Earth and
not on other planets in our
solar system?
1.
2.
3.
4.
Right Temperature
Air
Water
Resources
What is a day? What is the
reason for night and day?
A day is the amount of time it takes
a planet to complete one spin.
When the Earth spins, then only
one side can be facing the Sun.
Name some characteristics of
the moon.
1.
2.
3.
4.
5.
6.
No water
No air
No weather
Temperature changes greatly
Rocky Surfaces
Many craters
How long does it take for the
moon to complete all of its
phases?
One Month
What is Earth’s nearest
neighbor?
Moon
What are constellations?
Patterns formed by groups of
stars in the night sky
Why do constellations appear to
move across the sky?
Because Earth rotates
Describe the inner planets.
1. Solid, rocky crusts
2. Have atmospheres
3. Do not have rings
4. Warmer Temperatures
5. Slow rotation time
What planet is the only one that
can support life?
Earth
Describe the outer planets.
1.
2.
3.
4.
5.
Gaseous
Has rings
Cooler Temperatures
Many moons
Slow revolution time
What is an asteroid belt?
Region between Mars and
Jupiter where most
asteroids are found.
What are asteroids?
“Minor Planet”
Small, rocky objects that orbit
the Sun.
What are meteors?
A chunk of rock from space that
burns up as it travels through
Earth’s atmosphere.
A “shooting star”
What are meteorites?
A chunk of rock from space
that strikes the surface of
Earth or the Moon.
What are comets?
A “dirty snowball” orbiting the
Sun- a mixture of ices,
frozen gases, rock, and dust
left over from the formation
of the solar system.
What is a galaxy?
A collection of billions of
stars.
What is the Milky Way?
Our galaxy
What is our solar system?
The Sun and the objects that
are traveling around it.
What is a planet?
Any of the eight major objects
that travel around the Sun
and shine by reflecting its
light.
What is gravity?
The force of attraction
between any two objects
due to their mass.
What does revolve mean?
To move around, or orbit,
another object.
What is an orbit?
The path a planet travels in
as it goes around the Sun.
What are phases?
As the moon travels around
Earth, we see different
amounts of its lighted half.
What effect is there because of
the Earth’s tilt?
Sun’s light shines differently
throughout the year
What is an atmosphere?
The blanket of gases
surrounding the Earth
What is rotation time?
Time it takes for a planet to
turn on its axis
(24 hours)
What is revolution time?
Time it takes for a planet to
orbit the Sun
(One Year)
What is a light year?
Distance light travels in a
year
5.8 trillion miles
MERCURY
1. Closest planet to the Sun
2. Extremely hot and cold
temperatures
VENUS
Hottest planet
EARTH
1. Water Planet
2. Right temperature and
resources for life
3. Revolution time: 1 year
4. Rotation time: 1 day
MARS
1. Largest volcano in our
solar system
2. Red Planet
JUPITER
1. Largest planet
2. Gas Giant
SATURN
Has most visible rings
URANUS
Tilted Planet
NEPTUNE
Twin Planet
PLUTO
No longer a planetdwarf planet