Fill In Sentences:
Telescopes
INSTRUCTIONS:
Fill in each blank box with the word from the above list that best completes the sentence.
distortion
concave
astronomer
spectrum
convex
invisible
reflector
incredible
radiation
satelite
refracted
revolutionized
constellation
optical
galaxy
1. The telescope the study of the universe.
2. Gamma rays are , but visible light can be seen.
3. Nicolaus Copernicus said that the earth traveled around the sun.
4. Orion is a of stars that can be seen in the night sky.
5. A mirror is the main collector of light in a reflecting telescope.
6. The Hubble telescope has given astronomers an view of the universe.
7. A is an optical telescope that uses mirrors to reflect light and focus images.
8. Since it eliminates , the Schmidt combination telescope gives a good wide-angle view of the sky.
9. The Russians were the first to send a made by humans into space.
10. The objective in a refracting telescope is the large lens that curves outward.
11. The electromagnetic has gamma waves on one end and radio waves on the other.
12. Refracting and reflecting telescopes are both telescopes.
13. The solar system is just a small part of the Milky Way .
14. Microwave ovens use microwave to heat food.
15. Early refracting telescopes , or bent, light unevenly, creating a halo effect around images.
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Definition Matching:
Telescopes
INSTRUCTIONS:
For each vocabulary word in the left column, locate its definition in the right column.
Type the number of the correct definition in the blank before the word.
concave
1. to completely change; to change a great deal
refracted
2. not capable of being seen
invisible
3. scientist who studies objects in space
constellation
4. a group of stars that form a shape that is easy to recognize
optical
5. shaped like a shallow bowl; curved inward
satelite
6. extraordinary; unbelievable
distortion
7. a telescope that uses a mirror as the main focusing part
spectrum
8. change in the normal appearance; the twisting out of shape
convex
9. object that revolves around another object in space
reflector
10. curved outward
revolutionize
11. range or set
galaxy
12. of the eye or seeing; made to make sight better
astronomer
13. a system of stars formed by billions of stars
radiation
14. energy, such as light, that is emitted in waves or particles
incredible
15. to bend from a straight path
Be Sure to fill in all of the answers before you click submit.
You will not be able to edit the results after submission, but you will be able to retake the entire activity.
Hi! Our Vocabulary Activities work much better on a laptop or a desktop. Please try to use one of those devices when working on these activities. Thanks!
Crossword:
Telescopes
Words
REFRACT
REVOLUTIONIZE
GALAXY
RADIATION
CONCAVE
CONVEX
INVISIBLE
SATELLITE
ASTRONOMER
CONSTELLATION
DISTORTION
OPTICAL
INCREDIBLE
SPECTRUM
REFLECTOR
11
7
8
1
2
4
5
10
6
14
3
12
15
9
13
Across
2. to completely change; to change a great deal
3. scientist who studies objects in space
4. change in the normal appearance; the twisting out of shape
5. extraordinary; unbelievable
8. a telescope that uses a mirror as the main focusing part
9. object that revolves around another object in space
13. to bend from a straight path
14. curved outward
Down
1. a group of stars that form a shape that is easy to recognize
6. not capable of being seen
7. energy, such as light, that is emitted in waves or particles
10. range or set
11. shaped like a shallow bowl; curved inward
12. of the eye or seeing; made to make sight better
15. a system of stars formed by billions of stars
Hi! Our Vocabulary Activities work much better on a laptop or a desktop. Please try to use one of those devices when working on these activities. Thanks!
The twinkling stars that have been a source of wonder to humans for centuries come into sharp focus through the use of everyday telescopes, but with specially built ones, scientists can detect a whole other universe of light waves.
In Telescopes, kids are introduced to the electromagnetic spectrum, which includes the gamma rays generated in nuclear power plants and the radio waves that transmit TV signals. Compare refracting and reflecting telescopes, then see them in action in some of the largest structures on Earth, such as the VLA (Very Large Array), which is 22 miles square. But Earth is not the only place you’ll find telescopes; for kids obsessed with Space, coverage of the Hubble Telescope, which has confirmed the existence of black holes, and the finds of other space telescopes will impress to no end.
Far from being focused just on distant planets and stars, radio telescopes like SETI (Search for Extraterrestrial Intelligence) lead efforts to locate other forms of life, while infrared telescopes can tell us when the next big meteorite is likely to crash into Earth. Lastly, a section on how to become an amateur astronomer using common telescopes, for kids, will have them hurrying to the hobby store to price one of these amazing instruments.
8 Topics in this unit
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Waves of Energy
On a clear night, thousands of stars can be seen twinkling above Earth. Centuries ago, peo ...
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How Telescopes Work
A look into the night sky is a journey into the past. Why? Because even though light zips ...
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History of Telescopes
Long before telescopes, Greek scientists such as Aristotle (384–322 B.C.) and Ptolem ...
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Telescopes of Today
Observatories are places to study the sky.
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Images from the Hubble Telescope
Through its amazingly detailed and beautiful images, the Hubble Space Telescope is trying ...
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Space Telescopes
What causes stars to twinkle? The turbulent motion of the atmosphere, caused by wind and d ...
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Searching for Planets and Other Objects in the Sky
With telescopes, bigger is always better—because larger mirrors and lenses let in mo ...
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Backyard Astronomy
Constellations are random formations of stars that, when connected by imaginary lines, are ...
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1 Videos in this unit
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How Telescopes Work
Take the star Bellatrix in the constellation Orion, for instance. It is so far away from E ...
Vocabulary Activities for Telescopes
