First we reviewed and then we took a quiz on Lesson 3: The Outer Planets. Then we began Lesson 4: Dwarf Planets – We learned that a dwarf planet is a sphere that orbits a star. It has objects similar in mass orbiting near it or crossing its orbital path. The dwarf planets in the solar system are Pluto, Ceres, Eris, Makemake, and Haumea. Ceres is the smallest dwarf planet in the solar system and it is the only one located in the asteroid belt. Pluto has a rocky core surrounded by ice. It has three known moons. The Eris is a largest dwarf planet. It is three times farther from the Sun than Pluto. Makemake and Haumea are dwarf planets in the Kuiper belt. Next we learned that asteroids orbit the Sun in a band between Mars and Jupiter. They are made of chunks of rock and ice. The largest asteroid is named Pallas.