Light & Stars Crossword Puzzle

QUESTIONS LIST:

• electromagnetic: this spectrum is made of different wavelengths of light
• emission: this spectrum is produced when gasses are heated & excited, thereby producing light.
• continuous: this spectrum is emitted by hot objects
• absorption: this spectrum is produced when gasses in an atmosphere or nebula block light from traveling to our eyes
• concave: a lens that curves inward & diverges rays of light
• convex: a lens that curves outward & converges rays of light
• telescope: an instrument first used by galileo to magnify objects in space
• isaac newton: the inventor of the reflecting telescope
• refraction: the bending of light
• wavelength: the distance from the crest of one wave of light to the next
• atmosphere: we put telescopes in space because this interferes with the images of ground-based telescopes
• nanometers: the unit that we use to measure wavelengths of light; 1 billionth of a meter
• green: the color of light that the sun emits at its peak power density
• inverse: the relationship between a star’s color & temperature when graphed
• blueshift: the tendency of light to become compressed as an object moves towards the observer
• redshift: the tendency of light to be “stretched out” as an object moves away from an observer
• divergent: the path of light as it travels through a concave lens
• convergent: the path of light as it travels through a convex lens
• nebula: a cloud of gas & dust; a stellar nursery
• fusion: the process by which atoms are forced together, producing energy
• deuterium: fuses in a protostar; also known as ‘heavy hydrogen’