Our Solar System
What is the difference between a planet and star?
planets: are bodies that orbit a star.
Stars: are always made of gas and make its own energy and light
Name all four inner planets.
Mercury, Venus, Earth, Mars.
Name the four Outer planets
Jupiter,Saturn, Uranus,Neptune.
A rocky object smaller than a planet that orbits a star is called what?
An Asteroid
Why do planets appear to shine like stars in the night sky?
They reflect light from the sun?
Name 4 things that make up our solar system.
Answer depends.
What are the four inner planets made of?
Rock/Solid.
What are the outer planets made of and how do they compare in size with the inner planets.
made of mostly frozen gases
They are much larger in size.
Area that lies between Mars and Jupiter that has a large number of rocky objects.
Asteroid belt.
Describe venus's rotation.
It rotates in the opposite direction from most other planets.
An envelope of gas surrounding a body in space is called a(n)_______________.
Atmosphere.
Which planet is the fastest to orbit around the sun?
Mercury.
Which planet is the largest in the solar system?
Jupiter.
Once an asteroid enters earth's atmosphere the it becomes a _______________.
Meteor.
Is mars warmer or colder than earth and why?
colder.
distance from the sun and has a very thin atmosphere.
What two gases make up the sun?
Hydrogen and Helium
Name 3 features that allow earth to support life.
Perfect distance from the sun/temperature
dense atmosphere
Has water
Which planet rotates on it's side?
Uranus
What is the difference between a comet and asteroid.
comets: have ice, frozen gases, and dust that creates a tail as it gets warmed up from the sun.
What gas gives neptune it's blue color?
Methane gas
The sun's mass is _______ percent of the entire solar system.
99%
Name the hottest planet and the two reasons why?
Venus.
Distance from the sun.
Greenhouse effect (lots of CO2 in its atmosphere)
Which planets takes the longest to orbit the sun?
Neptune
Which planet has the most moons?
Jupiter.
What are the names of the suns three layered atmosphere?
1. Photosphere
2. Chromosphere
3. Corona.