Name Date Class Lesson Outline LESSON 4 Dwarf Planets and Other Objects A. Dwarf Planets 1. A dwarf planet is a sphere that orbits a(n) . 2. A dwarf planet has objects similar in orbiting near it or crossing its orbital path. 3. The dwarf planets in the solar system are , Ceres, Eris, Makemake, and Haumea. a. Ceres is located in the belt. It is the dwarf planet in the solar system. b. Pluto has a rocky core surrounded by . It has known moons. c. is the largest dwarf planet. It is three times farther from the Sun than the dwarf planet is. d. Makemake and Haumea are dwarf planets in the . B. Asteroids 1. Asteroids orbit the Sun in a band between and Jupiter. Copyright Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc. 2. The largest asteroid is called . 3. Asteroids are chunks of rock and . C. Comets 1. Comets are made up of rocks, ice, and . a. between the particles in a comet holds it together. b. Comets the Sun in long elliptical orbits. 2. As a comet approaches the Sun, a bright can develop on the comet. a. The is the solid, inner part of a comet. b. As the comet approaches the Sun, it heats, changing some ice in the nucleus into a(n) . c. Energy from the Sun pushes gas and dust particles away from the nucleus and makes it . 66 The Solar System Name Date Class Lesson Outline continued 3. comets take less than 200 years to orbit the Sun. They usually come from the . 4. comets take more than 200 years to orbit the Sun. They come from the . D. Meteoroids 1. A small, rocky particle that moves through space is a(n) . 2. As it passes through Earth’s atmosphere, friction with the air makes a meteoroid and the air around it . 3. A streak of light in the atmosphere made by a glowing meteoroid is a(n) . 4. Most meteoroids up in the atmosphere. a. A meteoroid that strikes the surface of a planet or a moon is called a(n) . b. A meteorite can form a bowl-shaped depression called a(n) in the surface it strikes. Copyright Copyright © Glencoe/McGraw-Hill, a of division The McGraw-Hill Companies, Inc. The Solar System 67.