  - 1. The circumference of the Earth at the equator is about
A) 6.000 km B) 40.000 km C) 300.000 km
  - 2. The age of the Universe is estimated in about
A) 14.000 millions of years B) One million of year C) 15.000 years
  - 3. The solar system has ____ planets
A) 12 B) 7 C) 9 D) 8
  - 4. The prefix geo means..
A) Estrella (star) B) Luna (Moon) C) Sol (Sun) D) Tierra (Earth)
  - 5. The prefix helio means...?
A) Sol (Sun) B) Tierra (Earth) C) Luna (Moon) D) Estrella (star)
 - 6. Match the concept Geocentric with one of the next scientists
A) Copernico B) Newton C) Galileo D) Ptolomeo
- 7. Match the concept heliocentric with one of the next scientists
A) Copernico B) Arquimedes C) Galileo D) Ptolomeo
- 8. The theory that affirm the Universe was created by a great explosion at the beginning of the time is known as...
A) The Kinetic theory B) The Atomic theory C) The Quantum theory D) The Big Bang theory
- 9. You are doing it very well. Encourage. Go ahead !
Write down your: * Birthday date (day-month)
- 10. The speed of the light in the vacuum is...
A) 340 m/s B) 300.000 km/s C) 1000 km/h D) 40.000 km/h
- 11. The space traversed by light during one year is called
A) Light speed B) One light-year C) One match-year D) One astronomic unit (A.U.)
- 12. If light travels at 300,000 km per second, how much (in minutes) the sunlight takes to reach the earth surface?
DATA: Distance Sun-Earth=150 millions of km
A) About 9 minutes B) About 900 minutes C) About 90 minutes
- 13. Our galaxy is know as...
A) Black hole B) Orion C) The milky way D) Andromeda
- 14. The sun's energy comes from _______ fusion reactions
A) Hidrogen (H) B) Helium (He) C) Uranium (U) D) Carbon (C)
- 15. It is estimated that the temperature inside the sun (in the core) reaches...
A) 300.000 ºC B) 40.000 ºC C) 15.000.000 ºC D) 6.000 ºC
- 16. The motion of a planet around its AXIS is called...
A) Traslacion B) Turn C) Revolution D) Rotation
- 17. The motion of a planet around the SUN is called...
A) Traslation B) Rotation C) Turn D) Revolution
- 18. Mercury, Venus, Earth, Mars are rocky planets and all of them are called...
A) Inner planets B) Asteroids C) Outer planets D) Small planets
- 19. Jupiter, Saturn, Uranus and Neptune are liquid or gaseous and all of them are called...
A) Astronomic planets B) Big planets C) Inner planets D) Outer planets
- 20. All the planets except _________ and ________ have satellites (one or more)
A) Uranus and Neptun B) Mars and Venus C) Mercury and Venus D) Saturn and Jupiter
- 21. The nearest star to Earth (apart from the sun) is called _______
A) Orion B) Betelgeuse C) Proxima Centauri D) Andromeda
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