The Planet Earth
Why is planet Earth unique?
It is the only planet that supports life.
True or False?
The stars in the Milky Way galaxy all have the same brightness, size, and color.
False
The stars in the Milky Way have different brightness, size, and color. The older stars are in the middle and the arms are made of new stars.
What planet ...
has the most rings?
Saturn
Decide if the characteristics apply to the inner, outer, or all planets.
Have rings
travel in an elliptical orbit
Outer have rings
All travel in an elliptical orbit
What do asteroids, comets, and meteors all have in common?
What galaxy is Earth found in?
the Milky Way galaxy
Which are true about Galaxies?
A. Galaxies contain everything that orbits the stars.
B. Galaxies are smaller than solar systems.
C. Galaxies are large systems made of gas, dust, and stars.
D. There are billions of galaxies in the universe.
E. Our home is the Andromeda galaxy.
A. Galaxies contain everything that orbits the stars.
C. Galaxies are large systems made of gas, dust, and stars.
D. There are billions of galaxies in the Universe.
What planet...
is the largest planet?
Jupiter
Decide if the characteristics apply to the inner, outer, or all planets.
Have many moons
Are located inside the asteroid belt
outer have many moons and inner are located inside the asteroid belt.
The asteroid belt is located between which 2 planets?
Mars and Jupiter
Earth and the Milky way are part of the _____________.
Universe
What is the name of the galaxy where Earth is located and which type of galaxy is it?
The Milky Way and Spiral Galaxy
Which planet is known as the red planet?
Mars.
Decide if the characteristics apply to the inner, outer, or all planets.
Are spherical in shape.
Orbit the sun
all
What is affecting the average surface temperature of the planets?
The distance from the sun
Earth is the ____ planet from the sun and between what two planets?
the 3rd planet between Mars and Venus
What happens when 2 or more galaxies collide?
Their gas, dust, and stars combine to create an irregular galaxy
What is the hottest planet? Which planet orbits on its side?
Venus is the hottest planet and Uranus orbits on its side.
Decide if the characteristics apply to the inner, outer, or all planets.
Have solid surfaces
Are mostly made of gas
Inner have solid surfaces
Outer are mostly made of gas
Why are comets different from asteroids?
Comets are made of frozen gases, dust, rock, and have a glowing tail. originate from the Kuiper belt.
Asteroids are rock bodies, originate from Asteroid belt.
State 3 facts to describe Earth's location in the Universe.
Earth is one of eight planets in the solar system
Earth is the 3rd planet from the sun
Earth is part of the Milky Way galaxy
Earth, the solar system, and the Milky Way are all part of the Universe.
Name the three types of galaxies and describe each of their characteristics.
Spiral: pinwheel shape, many young stars make it bright!
Elliptical: stretched out circle, thick pancake. Mostly older stars, not as bright.
Irregular: no distinct shape, smallest galaxies, lots of gas, dust, and bright young stars
What planet is farthest from the sun? closest?
Neptune is farthest, Mercury is closet to the sun.
Decide if the characteristics apply to the inner, outer, or all planets.
Are located in the Milky Way Galaxy.
Have warmer temperatures
All planets are located in the Milky Way galaxy.
Inner planets have warmer temperatures
What is the difference between Revolution and rotation?
Revolution is to go around the sun (earth takes 365 days or 1 year), causes seasons to occur.
Rotation is to spin on the planet's axis (Earth takes 24 hrs or 1 day), causes day and night.