An on-line supplement to chapter 3 of Science Explorer - Astronomy.
 
 
Electromagnetic Radiation
Star Light, Star Bright
  This activity includes three lessons:
 
  • Catch the Wave introduces the electromagnetic spectrum.
  • Making Waves allows you to generate waves.
  • Heating Up intoduces the idea that everything emits electromagnetic radiation.
  • Stellar Encounters tests your knowledge of the first three lessons. This lesson should be done after you have completed Catch the Wave, Making Waves, & Heating Up.
Telescopes
From Galileo to the Hubble
  This is a history lesson of the light telescope. Take notes as you proceed through the lesson.
The Online Planetarium Show
  This is an interactive planetarium program called "Hubble: From Here to Eternity." In the show, you will view spectacular images from the Hubble Space Telescope, uncover its incredible findings and read about other interesting topics.
. . Astronaut Challange
  Learn about the 1997 Servicing Mission of the Hubble Space Telescope and successfully complete the "Astronaut Challenge".
Distances to Stars
Cosmic Survey
  The Universe is very large and contains objects of varying sizes, ages, and distances from Earth. Test your knowledge by completing this survey.
Deaths of Stars
No Escape: The Truth About Black Holes
  This lesson includes two activities:
 
  • Is a Black Hole Really a Hole?
  • Beats Us - You Explain It
Voyage to a Black Hole
  Scientists address popular questions about black holes and provide evidence for black holes.
Galaxies
Galaxies Galore
  This lesson includes 6 activities
 
  • Build the Milky Way
  • Spiral Shapes
  • Elliptical Slide
  • Imagine Irregulars
  • Galaxy Card Games - Concentration & Trading Cards
  • Galaxy Hunt
Hubble Deep Field Academy
  In this activity you will go through the processes actual scientists go through to organize and synthesize new information.
The Big Bang Theory
Beyond The Big Bang
  Scientists address popular questions about the size, origin, and expansion of the universe.