All About Earth
Name the planet...
Vocabulary Words
Stars & Galaxies
Random!
100
In what order is Earth from the sun?
Earth is the 3rd planet.
100
This is the smallest planet in our Solar System. It is also called a Dwarf planet.
Pluto
100
What is the asteroid belt?
Area between Mars and Jupiter where many asteroids travel around the sun.
100
What type star is our sun?
Type G
100
How many hours are in a sidereal day?
24 hours
200
Earth spins like a top. The imaginary center line that the Earth spins around is called Earth's axis. Earth spinning around its axis is Earth's _________.
Rotation.
200
This planet is called "the red planet" because of the iron rich soil on its surface.
Mars
200
A ______ is a large body of ice and rock that orbit the sun. From earth, the gas and dust that follows the comet appears as a bright tail.
Comet
200
Where is our sun found on a HR-diagram?
In the middle of themain sequence - center-right.
200
How many days are in a year?
365.24 days.
300
Earth moves around the sun in a regular, curved path called an ________.
Orbit
300
This is the biggest planet in our Solar System. It has a big, red storm that is in constant motion on its surface.
Jupiter
300
A ___________ are fragments of meteors from space that land on Earth. Hundreds of these fall to the Earth every year, but only a few are found.
Meteorite
300
Compare the temperatures of red stars, yellow stars and blue stars.
Red stars have the coolest temperatures. Yellow stars have medium temperatures. Blue stars have the hottest temperatures.
Red stars: < 3500 oC
Yellow stars: about 5500 oC
Blue stars: 10,000 - 30,000 oC
300
If hundreds of meteorites fall to the Earth every year, then why are only a few of them found?
Earth is made up mostly of Oceans. Most of the meteorites fall into the Oceans and cannot be found. Also, most are very, very tiny.
400
The movement of the Earth around the Sun is called a ____________.
Revolution
400
This is the 6th planet from the Sun. It has several rings that are made up of ice and rock.
Saturn
400
The rotation of the moon from full moon to full moon, give the period name and how long it is in days.
It is referred to as the synodic period, which lasts about 29 1/2 days.
400
Name the three kinds of galaxies and describe their shape. Bonus for a modified form of our own galaxy.
1. Elliptical Galaxy - shaped like a huge football
2. Spiral Galaxy - shaped like a pin wheel
3. Irregular Galaxy - does not have a specific shape.
4. bonus: barred-spiral
400
How long is a sidereal day?
That refers to 360o rotation - 23 hr 56 min (+ 4 sec.) If you have the 4 sec also --> + 200 pt
500
Why is Earth the only planet that has life?
Earth is the only planet that has life because we have oxygen, a magnetic field and liquid water.
500
This is the 7th planet from the Sun. It has an atmosphere made of hydrogen, helium and methane.
Uranus
500
What causes Earth's seasons?
The tilting of Earth's axis.
500
What is fusion?
Fusion is the process of combining light atomic nuclei (typically hydrogen) to form a heavier nucleus (helium), releasing massive amounts of energy. This reaction powers the sun and stars.
500
What is the name of the largest mountain on any planet in our solar system. Also, give its approximate height and breadth.
Olympus Mons, located on the planet Mars, is the largest volcano and tallest mountain in our solar system. It stands at an impressive height of approximately 13 - 16 miles, and spans about 375 miles across, making it roughly three times taller than Mount Everest and similar in area to the state of Arizona or France.
600
Name a planet or dwarf planet which has a moon which is proportionally bigger than the Earth's moon to the earth.
Pluto - Charon is over half Pluto's diameter. Charon roatets about a point not in Pluto's volume. It is essentially a double-dwarf planet system.
600
This planet is slightly samller than Uranus in diameter, but weighs more.
Neptune
600
The rotation of the moon from - 360o, give the period name and how long it is in days.
sidereal period, which is about 27 1/3 days
600
1) What is the name of the galzxy within which our solar system is found?
2) About how many stars are found in our galaxy?
3) How many lightyears spans our galaxy?
4) What is Mr. Bruce's favorite football team?
1) Milky way
2) ~ 200 billion stars
3) Over 100,000 LY across
4) NOT UGA... USC (as in University of Southern California)
600
How do you shoot a red elephant?
If you said "shoot it with a red elephant gun" - minus 100.
Hold its nose until it turns blue, then shoot it with a blue elephant gun.