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Science 8
Unit 2
Astronomy
Name: ______________________________
Date: ______________ Period: __________
Chapter 14 Vocabulary Wordsearch
Use the following vocabulary words to complete the sentences, and then find the words in the Wordsearch puzzle.
aurora
black hole
chromosphere
convection
core
corona
dwarf
galaxy
helium
hydrogen
light year
luminosity
main sequence
nebula
neutron star
nuclear fusion
nucleus
parallax
photosphere
prominence
protostar
quasar
solar flare
solar wind
spiral
star
sunspot
supergiant
supernova
universe
1. Huge streams of gases called ________________________ shoot up from the sun and spill back down.
2. A sudden eruption of gases from the chromosphere that travel far out into space are _______________________.
3. The joining of atomic nuclei in the core of sun that provides its energy is ________________________________.
4. A thin reddish layer of the sun is the ______________________________.
5. The ____________________ is the bright visible surface of the sun.
6. The outermost layer of the sun, the _________________________, is about 9 million degrees Celsius.
7. ____________________ are beautiful patterns of glowing lights in our atmosphere caused by electromagnetic radiation from the
sun.
8. The ________________________ is the earliest stage of a star’s life.
9. A star with a large mass will expand to a __________________________ before it explodes.
10. The remains of a massive star will form a ________________________ whose gravity is so strong that not even light can escape.
11. _____________________ is the apparent change in location of an object when viewed from two places.
12. Billions of stars in a group held together by their own gravity is a __________________________.
13. The ____________________________ is all of space and everything in it.
14. A cloud of gas and dust in space where new stars form is a ________________________.
15. A ___________________________ is an explosion of a giant or supergiant star.
16. A sphere of glowing hot gases is called a __________________.
17. The sun produces its energy in the _________________.
18. The center of a galaxy is its _________________________.
19. _____________________________ is the transfer of energy by the motion of moving gases.
20. A dark region on the surface of the sun called ______________________ are cooler than the surrounding gases.
21. The ________________________ is a constant streaming of electrically charged particles from the sun’s corona.
22. ______________________ and _____________________ are the most abundant elements in the sun.
23. The distance light can travel in a year, about 9.6 trillion km is also known as a ________________________.
24. A ___________________ is a tiny yet massively dense star that remains after a supernova.
25. A ___________________ is the remaining hot core of a red giant after the atmosphere has drifted away.
26. The brightness of a star determined by is distance from Earth is called its ___________________________.
27. A _________________________ shines brightly in the center of a distant galaxy because of the friction of materials spiraling
around it.
28. 90% of all stars are in the ___________________________________.
29. The Milky Way galaxy is a _________________________ galaxy.