| A | B |
| The Earth is this many times as wide as the moon. | four |
| a word used to refer to the sun | solar |
| caused the moon's craters | meteorites |
| The sun is a _____. | star |
| The sun is made of _____. | gases |
| an instrument that makes distant objects look nearer and larger | telescope |
| a dark area on the surface of the sun caused by a solar storm | sunspot |
| large chunks of rock or metal that fall from space | meteorites |
| a scientist who studies space | astronomer |
| a bowl-shaped pit | crater |
| a force that pulls objects toward each other | gravity |
| To learn about objects in space, astronomers use _____, ____, and _____. | cameras, telescopes, and space probes |
| a building which contains a large telescope | observatory |
| a bright area on the surface fo the sun caused by a solar storm | solar flare |
| the layer of gases surrounding Earth or another planet | atmosphere |
| a ball of very hot gases that gives off light and heat | sun |
| a huge loop of gases that appears on the edge of the sun | prominence |
| a machine that travels alone through space to study what is there | space probe |
| a word that refers to the moon | lunar |
| How many minutes does it take for the sun's light to reach the Earth? | eight |
| Gravity is ____ times stronger on the Earth than on the moon? | six |
| The color of the sky from the moon looks _____. | black |
| The temperature on the moon during the day is very_____. | hot |
| The temperature of the moon at night is very_____. | cold |
| The Earth goes around the _____. | sun |
| The moon goes around the ____. | Earth |
| The first people to walk on the moon | Neil Armstrong, " Buzz" Aldrin |
| Ways the moon and earth are alike | Round, heavenly bodies, mountains, craters, soil, some gravity, go around another heavenly body |
| Things earth has that moon doesn't have | water, air, life, sound, more gravity, grass |
| Things about moon that are not true of earth | lifeless, less gravity, smaller, made completely of gray powdery rock |
| the year that men first walked on the moon | 1969 |
| The moon is about_____ miles away from Earth. aw | 240,000 |
| The temperature on the surface of the sun is about _____degrees Farhenheit. | 10,000 |
| The sun is about_____ times larger than Earth. | one million |
| three kinds of magnetic storms on the sun | sunspots, solar flares, prominences |
| The sun gives us what two kinds of energy? | heat, light |
| colorful sights that appear in the sky at the North Pole because of solar storms | Northern Lights |
| a set of clothing worn in space for protection | spacesuit |
| a scientist who travels in space | astronaut |