Scavenger+Hunt+Answer+Key

The Sun
1.[|The sun] is the largest object and contains approximately 98% of the total solar system mass, how many Earths would it take to fill up the interior ( or inside) of the Sun?
 * Answer:** 1.3 million Earths

2. What percent of the [|Sun] is made up of Hydrogen, Helium, and Metals? 70% [|hydrogen] and 28% [|helium] by [|mass] everything else ("[|metals]") amounts to less than 2%
 * Answer:** 70% Hydrogen, 28% Helium, 2% Metals.

3. How high do [|temperatures] rise to in the core of the sun?

 * Answer:** 27 million degrees F

4. The Suns energy output is produced by [|what]?
 * Answer:** nuclear fusion reactions

The Stars
Directions: The word BLANK is the missing word. Use the links to answer the questions.

1. Stars are a cosmic energy that produces heat, **BLANK**, ultraviolet rays, **BLANK,** and other radiation. **Answer**: Stars are a cosmic energy that produces heat, **light**, ultraviolet rays, **x-rays**, and other radiation.

2. When stars are being named, the **BLANK** star in the constellation has **BLANK** in part of its scientific name. **Answer**: When stars are being named, the brightest star in the constellation has **“alpha”** in part of its scientific name.

3. Stars come in various sizes. **BLANK** range from 10 to 1000 times the diameter of the sun and giants range from **BLANK** times the diameter of the sun. **BLANK** stars can be 1000 times than **BLANK** the sun. **Answer**: Stars come in different sizes. **Supergiant** stars range from 100 to 1000 times the diameter of the sun and giants range from **10 to 100** times the diameter of the sun. **Dwarf** stars can be 1000 times **smaller** than the sun.

Black Holes
1. What is a [|Black Hole]? Is it visible? **Answer:** A celestial body whose surface gravity is so strong that not even light can escape once trapped. It is Invisible.

2. What are the [|3] main parts of the black hole? **Answer:** //Outer Event Horizon, Inner Event Horizon and Singularity//

3. Name and describe the [|two types]of black holes. **Answer:** -One kind is called a **stellar-mass black hole**, this type of black hole forms when a big star burns up all its fuel and explodes (called a supernova). Then what’s left collapses into a super-compact object—a black hole. Stellar-mass black holes are only a few tens of kilometers across—maybe about 40 miles.

-Another kind of black hole is called a **supermassive black hole**. Known as a "million-big-star" black hole, because it contains as much matter as one million to 100 million Suns. Astronomers think that supermassive black holes are lurking at the centers of galaxies, including our own Milky Way galaxy.

Temperature of the planets
1.What is the average temperature of [|Saturn]?
 * Answer: ** -184°C(-300° F)

2.Which 2 planets have closest [|temperature] during the day?
 * Answer:** Mercury and Venus

3.What is the [|HOTTEST] planet?
 * Answer:** Venus

= The Milky Way and The Asteroid belt = http://coolcosmos.ipac.caltech.edu/cosmic_kids/AskKids/milkyway.shtml The (__Milky Way)__ is the galaxy in which we live. It is a spiral shaped galaxy that contains about 200 billion stars, including our Sun. It is about 100,000 light-years across and about 10,000 light-years thick. If you are at a place which has a very dark night sky, you can sometimes see the (__Milky Way)__ as a thick band of stars in the sky. We live near the edge of the (__Milky Way__). http://kids.yahoo.com/reference/dictionary/english/entry/asteroid%20belt The __(Asteroid Belt)__ is … The region of the solar system between the orbits of Mars and Jupiter, where most of the asteroids are found. http://www.kidsastronomy.com/asteroid.htm What are asteroids?
 * Answer:** An asteroid is a large rock in outer space.

= = =**Planets Ice Rings**= 1. How many different planets have rings?
 * Answer:** There are four planets in our Solar System with ring, Jupiter, Saturn, Neptune, and Uranus.

2. Which planets has the brightest ring system?
 * Answer:** Saturn has the brightest ring system of any planet in our Solar System, which is why it was the first planet with ring to be discovered.

3. How long ago did rings start to take form in the solar system? = = =Atmosphere=
 * Answer:** Rings started to take form when the solar system was still forming, about 4.5 billion years ago.

1. How many layers are in the Earth's atmosphere?
 * Answer**: 5

2. What layer does weather take place in?
 * Answer**: Troposhere

3. What layer do airplanes fly in?
 * Answer**: Stratosphere