Science Unit 3 Vocabulary
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  • Question 1
    10 seconds
    Q.

    a circular shape that looks like a narrow or flattened circle

    answer choices

    dwarf planet

    comet

    orbit

    ellipse

  • Question 2
    10 seconds
    Q.

    an imaginary line that passes through Earth's center at its North and South Poles

    answer choices

    space probes

    axis

    hemisphere

    equator

  • Question 3
    10 seconds
    Q.

    an imaginary line around Earth equally distant from the North and South Poles

    answer choices

    axis

    equator

    constellation

    revolution

  • Question 4
    10 seconds
    Q.

    one half of the Earth

    answer choices

    hemisphere

    axis

    ellipse

    equator

  • Question 5
    10 seconds
    Q.

    A star and all the planets and other objects that revolve around it

    answer choices

    universe

    constellation

    moon phase

    solar system

  • Question 6
    10 seconds
    Q.

    a body that orbits a planet

    answer choices

    star

    planet

    rotation

    moon

  • Question 7
    10 seconds
    Q.

    a large, round body that revolves around a star

    answer choices

    sun

    moon

    comet

    planet

  • Question 8
    10 seconds
    Q.

    a huge ball of very hot, glowing gases in space that produces its own light and heat

    answer choices

    galaxy

    sun

    star

    moon

  • Question 9
    10 seconds
    Q.

    a pattern of stars, named after a mythological or religious figure, an object, or animal.

    answer choices

    universe

    asteroid

    constellation

    rotation

  • Question 10
    10 seconds
    Q.

    everything that exists, including galaxies and everything in them

    answer choices

    universe

    lunar

    solar system

    galaxy

  • Question 11
    10 seconds
    Q.

    a group of billions of stars, objects that orbit those stars, gas, and dust

    answer choices

    solar system

    light-years

    ellipse

    galaxy

  • Question 12
    10 seconds
    Q.

    the appearance the moon assumes in the sky, created by sunlight reflecting off of the moon's surface

    answer choices

    space probes

    Milky Way

    Orbit

    moon phase

  • Question 13
    10 seconds
    Q.

    having to do with the moon

    answer choices

    moon

    moon phase

    lunar

    inner planets

  • Question 14
    10 seconds
    Q.

    a chunk of rock or iron less than 1,000 km (621 mi) in diameter that orbits the sun

    answer choices

    moon

    star

    planet

    asteroid

  • Question 15
    10 seconds
    Q.

    distance light travels through empty space in one year, equals 5.878 trillion miles

    answer choices

    hemisphere

    axis

    orbit

    light-years

  • Question 16
    10 seconds
    Q.

    a medium sized star at the center of our solar system

    answer choices

    Lunar

    constellation

    Sun

    Axis

  • Question 17
    10 seconds
    Q.

    to spin on an axis

    answer choices

    revolution

    orbit

    rotation

    equator

  • Question 18
    10 seconds
    Q.

    when Earth travels in a closed path around the sun

    answer choices

    rotation

    orbit

    revolution

    atronomy

  • Question 19
    10 seconds
    Q.

    the path one body takes in space as it revolves around another body

    answer choices

    orbit

    rotation

    revolution

    ellipse

  • Question 20
    10 seconds
    Q.

    a chunk of frozen gasses, rock, ice, and dust orbitng the sun

    answer choices

    asteroid

    comet

    moon

    planet

  • Question 21
    10 seconds
    Q.

    our home galaxy

    answer choices

    galaxy

    constellation

    Hemisphere

    Milky Way

  • Question 22
    10 seconds
    Q.

    the four closest planets to the sun

    answer choices

    outer planets

    inner planets

    dwarf planet

    space probes

  • Question 23
    10 seconds
    Q.

    any of the four planets in our solar system beyond Mars

    answer choices

    inner planets

    outer planets

    space probes

    Milky Way

  • Question 24
    10 seconds
    Q.

    a spacecraft that gathers data without a crew

    answer choices

    astronomy

    constellation

    solar system

    space probes

  • Question 25
    10 seconds
    Q.

    the study of objects in space and their properties

    answer choices

    Ellipse

    Hemisphere

    Universe

    Astronomy

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