Bonus: Daily Drills included in download: additional $5 value
Why it is that Jupiter, Saturn, Uranus, and Neptune are called the "gas giants"? What celestial body orbits alongside Pluto? Learn the unique characteristics of each of the five planets farthest from the sun. Understand why Jupiter is called the “Spotted Giant†and learn why Galileo thought Saturn's beautiful rings were "ears" to the planet itself.