graph
logos
photos
tele
geo
100

To write one's own name

What is an autograph?

100

word, study

What is logos?

100

A device which measure light.

What is a photometer?

100

Something to see distant things

What is television?

100

Drawing the earth and write about it

What is geography?

200

Picture drawn by light

What is a photograph?

200

Knowledge from the stars

What is astrology?

200

Light from far away

What is telephoto?

200

A device to hear sound from far away

What is a telephone?

200

Study of the earth and its formations

What is geology?

300

If "holos" means complete, then a three-dimensional phograph of a whole object 

What is a holgram?

300

If "zoo" means animal, then what is the study of animals?

What is zoology?

300

If "philia" means love, than what is a love of light.

What is photophilia?

300

If "pathos" means feeling, than to know how someone far away is feeling

What is telepathy?

300

Branch of study of ways to measure the earth

What is geometry?

400

If "phono" means sound, then a written symbol for a sound.

What is a phonogram?

400

If "syn" means together and "thesis" is putting,

the process of putting things together with light.

What is photosynthesis?

400

If "phobos" means fear, than to have a fear or dislike of light

What is photophobia?

400

A telephone fund raiser which runs non-stop

What is a telethon?

400

One who studies the formations of the earth's crust; rocks, minerals, oil

What is a geologist?

500

If "dia" means across, what is measuring across.

What is diameter?

500

If "opsi' means sight, then measuring eyesight

What is optometry?

500

If "thermos" means heat , than what measure heat.

What is thermometer?

500

If "baros" means pressure, than what is a device to measure air pressure?

What is a barometer?

500

Measurement of the earth

What is the geometry?