The Outer Planets (pages 720–727)

1 Pearson Education, Inc., publishing as Pearson Prentice Hall. All rights Outer Planets (pages 720 727)Gas Giants and Pluto (page 721)Key Concept: The first four Outer Planets Jupiter, saturn , Uranus, and Neptune are much larger and more massive than Earth, and they do not have solid surfaces. The Outer Planets include Jupiter, saturn , Uranus, Neptune, and Pluto. The first four Outer Planets Jupiter, saturn , Uranus, and Neptune are called the gas giants. They are very large, and they do not have solid surfaces. The gas giants are made up mainly of hydrogen and helium. All the gas giants have many moons. Each gas giant is also surrounded by rings. A ring is a thin circle of small ice and rock particles around a the following questions.

2 Use your textbook and the ideas Circle the letter of the sentence that is true about gas have rocky have no do not have solid of the gas giants is surrounded by circles Solar System Adapted reading and Study Pearson Education, Inc., publishing as Pearson Prentice Hall. All rights planetsincludeSaturnUranusGas the concept map about the Outer Solar System Adapted reading and StudyJupiter (pages 722 723)Key Concept: Jupiter is the largest and most massive planet. Jupiter s mass is about 21 / 2times the mass of all the other Planets combined. Jupiter has a thick atmosphere made up mainly of hydrogen and helium. A storm in Jupiter s atmosphere is called the Great Red Spot.

3 Jupiter has more than 60 moons. The four largest moons are Io (EYE oh), Europa, Ganymede, and Callisto. Pearson Education, Inc., publishing as Pearson Prentice Hall. All rights the following questions. Use your textbook and the ideas on page the letter of each sentence that is true about is the largest has a thick has no the following sentence true or false? The Great RedSpot is a storm in Jupiter s atmosphere. the letter of a moon of Red SpotSaturn (page 724)Key Concept: saturn has the most spectacular rings of any planet. saturn is the second-largest planet. saturn s atmosphere is made up mostly of hydrogen and helium. saturn has many rings. saturn s rings are broad and thin.

4 saturn has more than 31 moons. saturn s largest moon is named Titan. Titan is larger than the planet the following questions. Use your textbook and the ideas the following sentence true or false? saturn is thesecond-largest planet. The Solar System Adapted reading and Study Pearson Education, Inc., publishing as Pearson Prentice Hall. All rights picture shows the sun and the Planets of the solar system. Draw a circle around the planet Solar System Adapted reading and the letter of each sentence that is true about s rings are broad and s largest moon is named s atmosphere is made up mostly ofhydrogen and (page 725)Key Concept: Uranus s axis of rotation is tilted at an angle of about 90 degrees from the vertical.

5 Uranus looks blue-green from Earth because there is methane gas in its atmosphere. Uranus is surrounded by a group of thin, flat rings. Uranus s axis is different than the axes of other Planets . Uranus looks like it is rotating from top to bottom. Other Planets look like they are rotating from side to side. Uranus has over 25 moons. Uranus s five largest moons have icy surfaces with many craters. Pearson Education, Inc., publishing as Pearson Prentice Hall. All rights the following questions. Use your textbook and the ideas on page the letter of each sentence that is true about has no has no looks blue-green from the following sentence true or false? Uranus lookslike it is rotating from top to bottom.

6 Neptune (page 726)Key Concept: Neptune is a cold, blue planet. Its atmosphere contains visible clouds. Neptune is much like Uranus in size and color. Neptune looks blue from Earth. Neptune s atmosphere has clouds. Scientists think that Neptune is shrinking. Neptune has at least 13 moons. Neptune s largest moon is called the following questions. Use your textbook and the ideas the following sentence true or false? There are noclouds in Uranus s atmosphere. the letter of each sentence that is true about s largest moon is called think that Neptune is is much larger than Solar System Adapted reading and Study Pearson Education, Inc., publishing as Pearson Prentice Hall. All rights (page 727)Key Concept: Pluto has a solid surface and is much smaller and denser than the other Outer Planets .

7 Pluto is the farthest planet from the sun. Pluto is very different than the gas giants. For example, Pluto has a solid surface. Pluto is smaller than Earth s moon. Pluto is so small that some astronomers do not think it should be called a the following questions. Use your textbook and the ideas the following sentence true or false? Pluto is thenearest planet to the sun. is smaller than Earth s .The Solar System Adapted reading and Study