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Solar System Test Review There are several planets in the . What do all of these planets have in common?

A.They all the . B. They are all close to the . C.They are all called . D.They all orbit the Moon. What is the largest object in our solar system?

A. B. the Sun C.the Moon D.Earth What are the large objects that revolve around the Sun called? A. B. C. planets D.

What are the large objects that revolve around the planets called? A. moons B. the Sun C. comets D. Which of the following correctly fills in the blank in the statement below?

The Earth is the ____ planet from the Sun. A. 5th B. 4th C. 3rd D. 2nd Image courtesy NASA.gov scale is relative only

Which planet has an orbit that is closer to the Sun than Earth? A. B. C. D. Jupiter Image courtesy NASA.gov scale is relative only

Which planet has the orbit that is the farthest away from the Sun? A. Neptune B. Earth C. D. Mars Another name for the inner planets is ______, which describes their physical characteristics. A. the gas giants B. the terrestrial planets C. the cold planets D. the large planets

The eight planets of the solar system can be divided into two groups, as shown in the table below.

Group 1 Group 2 larger planets smaller planets made mostly of gases made mostly of and rings present no rings present several moons per planet 0 - 2 moons per planet

Which of the following correctly identifies the planets in these groups?

A. Group 2 is the two outer planets, and, Group 1 is the six inner planets.

B. Group 1 is the four outer planets, and Group 2 is the four inner planets.

C. Group 1 is the four inner planets, and Group 2 is the four outer planets.

D. Group 2 is the six outer planets, and Group 1 is the two inner planets.

Look at the table below, and answer the question that follows.

Inner Planets Outer Planets Jupiter Based on the planet group Venus Saturn it is in, Mars Earth A. has rings around it. Mars Neptune B. is small and made mostly of rock. C. is large and made mostly of gases. D. has several icy moons. There are eight planets in the solar system. Each planet is different from the others, but they all share some common characteristics.

Which of the following is a similarity of all planets? A. All planets have liquid . B. All planets have organisms on them. C. All planets orbit a . D. All planets are the same size.

Pluto used to be considered one of nine major planets in our Solar System. It is now considered ______.

A. a B. a planetary C. an D. a Many technological advances have helped people perform scientific studies. An important area of that has been influenced by technology is study. Without the invention of special equipment, much of what is known about space would not be known today.

Which of the following inventions has contributed to the study of space? A. B. C. space crafts D. all of these Beginning in January of 2004 there have been many photographs and other data collected from the surface of Mars.

How was this data collected?

A. by very powerful telescopes

B. by a team of astronauts who traveled to Mars

C. by satallites orbiting Mars

D. by unmanned rovers Which of the following small objects revolve around the Sun? A. B. comets C. asteroids D. all of these A student rubs two wooden sticks together very hard and fast. What effect will this rubbing have?

A. The sticks will begin to melt

B. The sticks will become magnetic

C. The temperature of the sticks will increase

D. The sound of the rubbing will become lower. A ______, such as the one shown above, is a small body that the Sun and has a tail.

A. comet

B. meteor

C. planet

D. asteroid Sometimes, small pieces of rock or dust enter the Earth's . When this material heats up and , it glows and becomes visible from the Earth's surface.

These burning pieces of material are called ______. A. meteors B. comets C. moons D. planetoids What is the name for a group of planets that revolve around a central star? A. the Sun B. solar system C. D. Which of the following best describes the Earth? A. It is one of several moons that orbit around the Sun.

B. It is one of millions of stars in the galaxy.

C. It is the only known planet that orbits around the Sun.

D. It is one of several planets that orbit around the Sun. Which of the following is a planet in the Solar System? A. the Sun

B. the Earth

C. Halley's Comet

D. the Moon

What tool is most helpful in observing the Moon? A. a microscope B. binoculars C. a D. a In terms of size, the Earth is A. the smallest object in the galaxy. B. much larger than all stars. C. much smaller than the Sun. D. the largest planet in our solar system.

Which of the planets listed below is the largest? A. Mercury B. Mars C. Jupiter D. Earth

What keeps a planet in orbit around the Sun? A. radiation B. magnetism C. D. heat Gravity keeps A. the planet Jupiter in orbit around the Sun.

B. the Moon in orbit around Earth.

C. moons in orbit around the planet Jupiter.

D. all of these

The Sun is a ______. A. B. planet C. meteor D. star

Which of the following words best describes the Sun? A. star B. planet C. moon D. comet

The Sun is more than 100 times as wide as the planet Earth. How big is the Sun compared to most other stars?

A. It is a very large star but not the largest.

B. It is an average-sized star.

C. It is much smaller than most other stars.

D. It is much larger than all other stars. Colin was driving to a football field. The stadium lights at the field are large and very bright. When Colin was still far away from the field, he could see the stadium lights, but they appeared very small.

How are the lights at the stadium similar to stars in the ?

A. Stars cannot be seen from far away.

B. Stars appear large because they are very far away.

C. Stars actually grow bigger as you move closer to them.

D. Stars appear to be small because they are very far away.