Vocabulary
Planets
Travel
Miscellaneous
100
rise and fall of ocean water's surface
What are tides
100
large objects that orbit the sun
What are planets
100
vehicles that carry tools into space
What are rockets
100
an object that revolves around another object
What is a satellite
200
force of attraction between objects
What is gravity
200
the sun and objects that orbit it, including planets, their satellites, and other smaller objects
What is the solar system
200
curved path traveled by planets around the sun
What is an orbit
200
instruments launched by rockets and sent to distant places too far away to send astronauts
What is a space probe
300
objects built by humans to be launched into space to orbit Earth
What is an artificial satellite
300
why the moon revolves around Earth
What is they exert a gravitational pull on each other
300
reusable vehicles made to carry astronauts to and from space
What is a space shuttle
300
tools to view distant objects
What is a telescope
400
what would the solar system be like without gravity
What is planets having no regular orbit and crashing into each other, no tides on Earth, length of days and years would change
400
how does the length of a year on Earth compare to other planets
What is planets that are closer to the sun have a shorter year while planets further from the sun have longer years
400
what are space shuttles capable of doing that rockets and space probes can not
What is take astronauts to and from outer space
400
what causes tides
What is the gravitational attraction between Earth and the moon
500
compare and contrast artificial satellites with natural satellites...give an example of each
What are answers may vary
500
Describe one planet and its location in the solar system...include at least 4 facts
What are answers may vary
500
why do scientists use space probes
What is to get information about places where astronauts can not travel to
500
compare and contrast the outer planets with the inner planets
What are outer planets are further away from the sun and made from gas...inner planets are closer to the sun and made of rock.
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