Download 11 - Known Universe

NAME________________________________________ hour_______
Known Universe: The Biggest and Smallest
Planet
type
Rocky,
Inner
Gas
Giants,
outer
Planet
Average distance
from sun in miles
Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
1. Facts about Pluto:
o has an elongated ___________
o is smaller than our ___________
o was voted out of the _____________ _____________
o is now considered a _____________ ______________
2. Facts about the Sun:
o More than ___________ of the mass of the solar system is in the Sun
o More than ________________Earths could fit inside the Sun
3. Our distance from the Sun is called the “Goldilocks Zone” because it is not too hot, and not
too cold.
If we were ________ closer to the Sun, searing heat would burn us up.
If we were 10% further out from the Sun, Earth would be an icy wasteland, covered with
__________________.
4. When measuring distances beyond our solar system, astronomers use__________
__________.
5. Light travels at ________________ miles per second.
6. 186,000miles/second X 60 seconds/minute X 60 minutes/hour X 24 hours/day X 365 days/year
= _______________ miles light can travel per year.
7. Near stars are light years away. Next galaxies are ____________ of light years away.
8. The Milky Way galaxy is _____________________light years across.
9. The Universe spans tens of __________________ of light years.
10. ______________ years ago, we thought the Milky Way galaxy was our entire universe.
11. It takes 100,000 years for a ____________ ___________ to travel from one side of the
Milky Way to the other.
12. There are over ____________________ galaxies in the cosmos.
13. In each galaxy there are hundreds of billions of _____________.
14. In the 1990’s we had not yet discovered other ______________ beyond our solar system.
15. We discovered other planets by watching stars _____________.
16. The problem with this method is that we can only detect _________ planets (Gas Giants)
using the “wobble” technique. We want to find planets that are like ________________.
17. The _____________ project is a plan to look for Earth-like planets around Sun-like stars.
18. Kepler will check for changes in star _________________, as a planet crosses and blocks
some of that star’s light.
19. We will have an answer to the question, “Could there be life on other planets?” within
_____ years.
20. When talking about size, a/an _______________ is to an orange as an orange is to the Earth.
21. The fundamental building block of ____________ is the atom.
22. A human hair is ______________ atoms wide.
23. There are a billion atoms in the _____________ at the end of a sentence.
24. Nuclei are made up of __________________ and ______________.
25. At the edge of atoms are________________.
26. The heaviest element on Earth is ____________________.
27. The atom is 99.99999999999999% _____________ _________________.
28. The universe (and yourself) is mostly _____________ _______________!
29. Electrons have a strong ________________ force, which keeps anything from ever really
touching anything else.
30. Super charged collisions have helped us find _______________, which are the particles that
make up protons and neutrons.
31. _______________ are combinations of atoms.
32. Elements combine to form ______________.
33. Molecules combine to create _____________!
34. A nanometer is on billionth of a _____________.
35. Nano-diamonds are being used to treat ______________.
36. All matter in the universe was created ______________ years ago. It has been recycling
ever since!
37. Our bodies are composed of __________ stuff! We are all made up of ____________
atoms.
38. The structure of the large looks very similar to that of the __________.
39. Whether looking into a microscope or _____________, scientists are trying to answer the
same question, “How did we get here?”