2.  Astronomy- the study of all physical objects beyond earth.

3.  Refracting Telescope Reflecting Telescope

5.  The Eltromagnetic spectrum is made of all of the wavelengths of eltromagnetic radiation.

6.  Constellations are sections of the sky that contain recognizable star patterns.

7.  Is the apparent path the sun takes across celestial sphrtr

9.  Imaginary circle created by earth’s equator.

10. The earth’s sky is a very interesting place. There is so much to learn about it. You can never know what is out there if you never look.