Question | Answer |
Astronomy | The study of space |
Galaxy | large system of stars held together by mutual gravitation and isolated from similar systems by vast regions of space. |
Universe | All matter in space |
Solar System | the sun together with all the planets and other bodies that revolve around it |
Star | any of the heavenly bodies, except the moon, appearing as fixed luminous points in the sky at night. |
Planet | Also called major planet. any of the eight large heavenly bodies revolving about the sun and shining by reflected light |
Nebula | Also called diffuse nebula. a cloud of interstellar gas and dust. |
Constellation | any of various groups of stars to which definite names have been given |
Satellite | a natural body that revolves around a planet |
Gravity | the force of attraction by which terrestrial bodies tend to fall toward the center of the earth |
What are all the planets in order. | Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune |
What is the name of our galaxy? | Milky Way |
How long does it take the earth to rotate around the sun? | 365 1/4 days |
Why does weight change on different planets? | The different masses |
Difference between revolve and rotate. | Rotate- spin in circles
Revolve- moving around the sun |
What does gravity do? | It helps us walk, and pulls us downward to keep everything steady. Also, gives us weight. |