Elementary Astronomy Lesson 1
Terms
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- The earth, planets, sun, stars, and everything in space is called the . . .
- universe.
- The study of the universe is called . . .
- astronomy.
- A pattern of stars in the sky is called a . . .
- constellation.
- Our night light and monthly calendar comes from the . . .
- moon.
- Our seasonal temperature changes and day light comes from the . . .
- sun.
- Sailors, birds, and travels figure out the right direction by looking at the . . .
- stars.
- A force that pulls objects toward a heavy object is called . . .
- gravity.
- The sun and all the planets that travel around the sun is called the . . .
- solar system.
- A large force that pulls the earth and keeps earth in its orbit is called the . . .
- sun's gravitational pull.
- A large force that pulls the moon and keeps moon in its orbit is called the . . .
- earth's gravitational pull.
- A large force that pulls the ocean and causes the tides is called the . . .
- moon's gravitational pull.
- The names of the nine planets are . . .
- Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto.
- The first astronomer to have the idea that the sun was in the center of the solar system was named . . .
- Nicholas Copernicus.
- The first astronomer to use a telescope to study the universe was named . . .
- Galileo Galilei.
- America's space program is called . . .
- NASA (National Aeronautics and Space Administration).
- Spaceships, telescopes, robots, rockets, and other useful items for space exploration are built by . . .
- engineers.
- Scientists who study the universe are called . .
- astronomers.
- People trained to travel in a spaceship are called . . .
- astronauts.
- NASA's enormous telescope floating in space is called the . . .
- Hubble Space Telescope.
- Objects made by humans to float around the earth, which helps us with TV channels, weather-pictures, telephones, and navigation are called . . .
- artificial satellites.