Vocabulary
What is the opposite meaning of the word approximately?
a. almost
b. exactly
c. often
b. exactly
What is the main difference between planets in our solar system?
a. The planets closest to the sun have a rocky surface and planets farthest from the sun are made mostly of gas.
b. The planets farthest away from the sun have a rocky surface and the planets closest to the sun are made up mostly of gas.
c. The planets farthest from the sun travel outside their own orbits, but the planets closest to the Sun have their own orbits.
a. The planets closest to the sun have a rocky surface and planets farthest from the sun are made mostly of gas.
What does the word spheres mean?
a. round three dimensional objects
b. square three dimensional objects
c. triangular three dimensional objects.
a. round three dimensional objects
Which planet is closest to the sun?
A. Mars
B. Mercury
C. Uranus
B. Mercury
T or F-Pluto has five moons.
True-Charon, Nix, Hydra, Kerberos, and Styx. Charon is so large that Pluto and Charon orbit each other like a double planet.
Which of these items would best help a person do a calculation?
a. book
b. computer
c. scissors
b. computer
Most scientists think the world began as a
a. star
b. planet
c. nebula
c. nebula
What word means rules to measure or set standards?
a. calculation
b. criteria
c. diameter
b. criteria
What year did the International Astronomical Union declare Pluto is not a planet?
A. 1996
B. 2003
C. 2006
C. 2006
T or F-A child gave Pluto its name. In 1930, 11-year-old Venetia Burney of Oxford, England, suggested the name Pluto for the newly discovered planet
True-In 1930, 11-year-old Venetia Burney of Oxford, England, suggested the name Pluto for the newly discovered planet
Diameter is the distance
a. top to bottom
b. from side to side
c. around something
b. from side to side
What finding made astronomers begin to doubt that Pluto was a planet?
a. They discovered that it traveled around the Sun in an oval-shaped orbit.
b. They found that although it was they farthest planet from the sun, it had a rocky surface.
c. They found that although it was the farthest planet from the Sun, it was made up mostly of gas.
b. They found that although it was they farthest planet from the sun, it had a rocky surface.
Which word has almost the same meaning as the word evaluate?
a. anticipate
b. judge
c. structure
b. judge
What year was Pluto first discovered?
A. 1930
B. 1940
C. 1936
A. 1930
Is Pluto smaller or larger than the moon?
Smaller-Pluto is really small for something in space, in fact it’s smaller than Earth’s Moon. It’s radius is 1,188.3 km.
Something that is astronomical has to do with
a. cooking
b. measurement
c. space
c. space
According to the selection, what do the Planet Finders use to look for planets?
a. a camera and a computer
b. a wide-field telescope and a camera
c. the Hubble Space Telescope and a camera
b. a wide-field telescope and a camera
Which word fits best in this sentence?
Clem loves to play with __________ shaped toys.
a. astronomical
b. orbit
c. sphere
c. sphere
Astronomers thought Pluto could have been....
A. A solar system
B. Comet
C. A star
B. Comet
Pluto's orbit is oblong and tilted. Comets' orbits are often tilted so experts wondered if Pluto was a comet.
How many Earth years equals one year for Pluto?
A. 14 years
B. 36 years
C. 157 years
D. 248 years
D. 248 years-It takes Pluto 248 Earth years to orbit the Sun. This means a year on the dwarf planet is the same as 248 Earth years.
What does the word orbit mean?
a. to move away from another object.
b. to move around another object.
c. to collide with another object.
b. to move around another object.
As defined by the IAU, what category of celestial bodies orbits the Sun, is round and is not a moon or satellite of another planet?
a. asteroids
b. comets
c. dwarf planets
c. dwarf planets
Which word fits best in this sentence?
We had _________ 5 inches of rain on Monday.
a. diameter
b. approximately
c. evaluate
b. approximately
In 1976, American astronomer James Christy discovered that the tiny dot everyone thought was Pluto was really two objects. What were they?
A. Pluto and its moon
B. Pluto and a star
C. Pluto and a dward planet
A. Pluto and its moon-Charon
How cold does Pluto get?
A. -57 to -68 degrees
B. -110 to -122 degrees
C. -228 to -238 degrees
C. -228 to -238 degrees-Pluto is very far from the Sun so it’s super cold. In facts it’s -228 to -238 C, which is too cold for humans to live there.