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MERCURY - UNIT 12

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  • The explorers went on a dangerous but exciting __________ through the jungle.
    adventure
  • The rainforest is home to many species currently __________ because of deforestation.
    in danger
  • A strange flying object believed to be a __________was seen above the forest.
    UFO
  • That roller coaster ride was so __________! I want to go again!
    thrilling
  • In space you feel almost __________ because there is no gravity.
    weightless
  • The invaders tried to __________ the Earth but were stopped by the space defense team.
    take over
  • The astronauts can __________ freely inside the spacecraft.
    float
  • Some people claim to have seen a large __________ in the snowy mountains.
    creature
  • Can you __________ a city floating in the sky with robots and flying cars?
    imagine
  • The __________ marched in formation ready for battle.
    soldiers
  • Do you think it will be __________ for humans to live on other planets someday?
    possible
  • It’s not wise to openly __________ your superior officer in the army.
    oppose
  • The space crew will __________ Earth after completing their 18-month mission.
    return to
  • This story is made up and not based on real events—it’s a work of __________.
    fiction
  • The mission’s __________ gave orders before the launch began.
    commander
  • The spacecraft is expected to __________ on the moon at 3:45 p.m.
    land
  • After completing the mission the astronauts prepared to __________ Earth.
    return to
  • The rover is a robotic __________ used to explore the planet’s surface.
    vehicle
  • Unicorns are __________ animals that exist only in fairy tales.
    imaginary
  • Children are taught to __________ rules at home and in school.
    obey
  • Many people believe __________ life exists beyond our solar system.
    alien
  • Mars is the only __________ in our solar system that humans might live on someday.
    planet
  • The captain was __________ the safety of the entire crew.
    in charge of
  • If you break the rules you may face serious __________.
    punishment
  • My favorite genre is __________ because it mixes futuristic technology with imagination.
    science fiction
  • The astronauts began their six-month __________ to explore Mars.
    journey
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