Question

studying space vocab
across

1. large collection of dust, stars and gas.
2. \below the red\ longer wave than red light on spectrum
3. point closest to the sun
4. movement of the earth around the sun
5. uses a curved mirror to gather & focus light
6. spectrum showing frequencies/wavelengths of radiation
7. equal hours of daylight and darkness
8. instrument that collects electromagnetic radiation for better observation
9. shortest wave length
10. point where the sun is as far north or south as possible

down

1. spin of the earth on its axis
2. point farthest from the sun
3. uses a set of lenses to gather & focus light
4. \beyond the violet\ shorter wave than violet on spectrum
5. study of the universe
6. group of stars organized into a recognizable pattern
7. system for measuring long intervals of time
8. light that humans can see
9. average distance between earth and sun (abbreviation)

Explanation:

We need to fill in the crossword with space - related vocabulary based on the given clues. For example, "large collection of dust, stars and gas" is a galaxy. "Spin of the earth on its axis" is rotation. We match each clue with the appropriate word and fill it into the corresponding crossword squares.

Answer:

Across:

1. Galaxy
2. Infrared
3. Perihelion
4. Revolution
5. Reflecting telescope
6. Spectrum
7. Equinox
8. Telescope
9. Gamma - ray
10. Solstice

Down:

1. Rotation
2. Aphelion
3. Refracting telescope
4. Ultraviolet
5. Cosmology
6. Constellation
7. Epoch
8. Visible light
9. AU