4th Grade
Quiz yourself by guessing what should be in
each of the black rectangles below before clicking
on it to display the answer.
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| Flap 2 | |
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| astronauts | pilots or members of the crew of a spacecraft |
| capsule | the enclosed front section of a rocket made to carry instruments, astronauts, etc., into space |
| hatch | a trapdoor covering an opening in an aircraft's or ship's deck |
| horizon | line where the earth and sky seem to meet; skyline |
| lunar | of or like the moon |
| module | a self-contained unit or system within a larger system, often designed for a particular function |
| quarantine | detention, isolation, and other measures taken to prevent the spread of an infectios disease |
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