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Salk 6th Grade Science
Exploring Space
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Earth, Moon, & Sun
Exploring Space

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Name ____________________________ Date ____________________ Class ____________

Exploring

Space

Exploring Space

Multiple Choice

Write the letter of the correct answer on the line at the left.

____ 1. The force that propels a rocket forward is called

a. velocity.

b. escape velocity.

c. an action force.

d. thrust.

____ 2. Humans first landed on the moon in

a. 1957.

b. 1961.

c. 1971.

d. 1969.

____ 3. A ________________________ can carry satellites into orbit.

a. space shuttle

b. space station

c. space probe

d. rover

____ 4. Astronauts orbiting Earth experience microgravity because

a. gravity is not pulling on them.

b. their mass decreases when in space.

c. they are falling around Earth.

d. they are in a vacuum.

____ 5. Rockets were first developed in

a. the United States.

b. China.

c. Great Britain.

d. the Soviet Union.

____ 6. The goal of the Apollo program was to

a. land astronauts on the moon.

b. establish a permanent colony on the moon.

c. put the first American in space.

d. prove that the moon is solid.

____ 7. The main advantage of a multistage rocket is that

a. it requires less fuel to overcome gravity at the time of launch.

b. it can carry humans into space.

c. the total weight of the rocket is reduced as the rocket rises.

d. it can be reused after returning to Earth.

Exploring Space

Chapter Test. Pearson Education, Inc., publishing as Pearson Prentice Hall. All rights reserved.

Name ____________________________ Date ____________________ Class ____________

____ 8. The main purpose of a space station is to

a. show that different countries can work together.

b. use solar panels to produce electricity for people on Earth.

c. carry out experiments in space.

d. take photos and readings of other planets in the solar system.

____ 9. An example of an artificial satellite is

a. the Eagle.

b. Explorer 1.

c. a rover.

d. the moon.

____ 10. Which is a cooperative effort among many different countries?

a. the space race

b. the Apollo program

c. NASA

d. the International Space Station

Completion

Fill in the line to complete each statement.

11. Joysticks and memory metals are examples of ________________________.

12. The speed of a rocket in a given direction is its ________________________.

13. The first person to walk on the moon was ________________________.

14. Some space probes have small robots called ________________________

that collect and analyze samples.

15. Space has extreme temperatures because it is nearly a

________________________.

True or False

Determine whether each statement is true or false. If it is true, write true. If it is

false, change the underlined word or words to make the statement true.

_______________ 16. The first American to orbit Earth was Alan Shepard.

_______________ 17. In remote sensing, observation satellites collect data

about Earth and other objects without being in direct contact.

_______________ 18. A space probe is a spacecraft that has no human crew.

_______________ 19. Orbital velocity is the velocity a rocket must reach to fly

off into space.

_______________ 20. The force of gases shooting out the back of a rocket is an

example of a reaction force.

Exploring Space

Chapter Test. Pearson Education, Inc., publishing as Pearson Prentice Hall. All rights reserved.

Name ____________________________ Date ____________________ Class ____________

Exploring

Space

Using Science Skills

Use the diagram below to answer questions 21 and 22.

21. Interpreting Diagrams In the diagram above, a spacecraft is orbiting

Earth. Two forces keep the spacecraft in orbit. Label the arrows on the

diagram to name these forces.

22. Predicting On the diagram above, draw a dotted line showing the path

you believe the spacecraft would follow if Earth suddenly disappeared.

Essay

Write an answer for each of the following questions.

23. Describe how the Apollo astronauts studied the moon and some of the

things scientists have learned from the Apollo missions.

________________________________________________________________________

________________________________________________________________________

________________________________________________________________________

________________________________________________________________________

________________________________________________________________________

________________________________________________________________________

24. Compare and contrast solid-fuel, liquid-fuel, and ion rockets.

________________________________________________________________________

________________________________________________________________________

________________________________________________________________________

________________________________________________________________________

________________________________________________________________________

25. How are space probes alike and how are they different from one another?

________________________________________________________________________

________________________________________________________________________

________________________________________________________________________

________________________________________________________________________

Earth

a

b Spacecraft

Exploring Space

Chapter Test. Pearson Education, Inc., publishing as Pearson Prentice Hall. All rights reserved.

Name ____________________________ Date ____________________ Class ____________

Using Science Skills

Use the diagrams below to answer question 26.

26. Inferring The X in Figure A shows the position of a communications satellite at 6:00

A.M. Eastern Standard Time in geosynchronous orbit around Earth. Later that same

day, the satellite is in the position shown by the X in Figure B. What time is it in

Eastern Standard Time in Figure B? Explain how you know.

________________________________________________________________________

________________________________________________________________________

________________________________________________________________________

27. In which position, A or B, will the satellite be the next morning at 6:00 A.M.?

________________________________________________________________________

Essay

Write an answer for each of the following questions.

28. Describe the events that led to the establishment of the National

Aeronautics and Space Administration.

________________________________________________________________________

________________________________________________________________________

________________________________________________________________________

29. Use three examples to describe how the technology of the space program

has benefited recreational activities of people on Earth.

________________________________________________________________________

________________________________________________________________________

________________________________________________________________________

________________________________________________________________________

30. How is a space shuttle designed to perform its tasks?

________________________________________________________________________

________________________________________________________________________

________________________________________________________________________

________________________________________________________________________

X

X

Figure A Figure B

Earth Earth

Exploring Space

Chapter Test

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