| A | B |
|---|
| What is a comet? | frozen mass of different types of ice and dust that orbit the sun. |
| What is an asteroid? | A rocky mass up to several 100 k wide the revolves around the sun. |
| What do several comets a year do? | They travel into the solar system and circle the sun. |
| When are most comets found? | Sunrise. |
| When do the coma and the tail of a comet form? | When the comet gets close enough to the sun to melt the nueclues. |
| What is the astroid belt? | Where astroids orbit the sun in a regin between Mars and jupiter. |
| Which planet's gravity holds the most astroids in the area beyond Mars? | Jupiter. |
| What Burn up before they hit earth's surface. | Metoers. |
| What is a satellite? | a moon, rock,or an object that orbits another object. |
| What is a tide? | The daliy rise and fall of the oceans on Earth. |
| What are moon phases? | The shapes of the lit side of the moon that can be seen. |
| Does the near side of the moon always face the Earth? | Yes. |
| Does the moon have an atmosphere of air and wter like Earth's? | No. |
| Does the moon make it's own light? | no. |
| Does gravity cause earth's land,water,&atmoshere2bulgeslightlytowardthemoon? | Yes. |
| What is a revolution? | one orbit around the sun that takes365 day or one yr. |
| what keeps objects in orbit? | gravity. |
| What is a rotation? | When the earth spins on it's axis. |
| What is an axis? | The imaginary line through space from the north pole 2 south pole. |
| How often dose the EARTH rotate? | every 24 hours. |
| Is the earth tilted? | yes. |
| what happens when it is winter? | The south pole is toward the sun. |
| What happens when its summer. | When the north pole is toward the sun. |
| What is the day where the day and night the same? | on sping and fall equinoxes. |
| What is the order of the planets? | mercury,venus,earth, mars,jupiter,saturn,uranus,neptune,pluto. |
| What is mercury's atmosphere like? | almost no atmosphere |
| What is mercury like? | small, rocky and lots of craters |
| What is mercury's size, compared to earth? | 40% of the earth's diameter |
| What is Venus's atmosphere like? | Thick and cloudy |
| What does Venus do? | Traps heat from the sun |
| What does Venus do with the light? | reflects it and makes it appear brighter in the sky |
| What is Venus's surface like? | very rocky |
| What is Venus's size compared to earth? | 90% if Earth's diameter |
| What is Mar's surface like? | rocky, red, dusty |
| What is Mar's atmosphere like? | thin, mainly carbon dioxide |
| What size is Mar's compared to earth? | 50% of the Earth's diameter |
| What is Ceres? | a dwarf planet in the astroid belt |
| Which planet is the largest? | Jupiter |
| What is Jupiter's surface like? | a gas giant, so no solid surfaces |
| What weather has been detected on Jupiter? | Lightning storms |
| How much bigger is Jupiter than Earth? | 11 times |
| How big is Saturn? | 2nd largest planet |
| What is Saturn famous for? | it's bright rings |
| How does Saturn compare to the Earth's size? | 10 times the Earth's diameter |
| What color is Uranus? | blue green |
| Why does Uranus have it's color? | due to methane gas |
| How much bigger is Uranus than earth? | 4 times |
| What is different about Uranus's axis? | It's nearly parallel to it's orbit plane |
| What color is Neptune? | deep blue |
| What is something weird about Neptune? | sometimes it's further from the Sun than Pluto |
| How much bigger is Neptune than Earth? | 4 times larger |
| How small is Pluto? | smaller than the moon |
| What is Pluto's orbit plane like? | tilted 17 degrees |
| What are the gas planets? | Neptune, Jupiter, Saturn, and Uranus |
| Where is Trans Neptunian? | beyond Neptune |
| What are astronomical units equal to? | the distance from the sun to the Earth, 93 million kilometers |
| What are comas? | clouds of dust and gas surrounding nucleus |
| When do comas form? | when a comet is close to a star and nucleus melts |
| The coma has two tails. Name one of them. | ion tail, charge cloud of gas that is narrow and blueish |
| What is the second tail? | dust tail, dust particles that are wide and yellowish |
| Where are tails always pointing? | away from the star it's passing |
| What causes the tail to go in the opposite direction of the star? | solar wind pushes it away |
| Why do we not see the far side of the moon? | It's rotating and not facing the earth? |
| Are the moon phases predictable? Why or why not? | They are predictable because it is a pattern |
| Which phases of the moon bring the highest tides? | new moons |
| What causes the low tides? | the moon goes a ninety degree angle and the moons tilt is strong |
| Differentiate between meteor, metearoid and meteorite. | Metearoid is a small astroid, Meteor burns up when it hits the Earth's atmosphere, and Meteorite is a peice of meteor on Earth |
| Describe two differences between comets and astroids. | comets are frozen and smaller |
| Explain at least two ways that comets and astroids affect the Earth. | Comets and astroids hit the Earth and make craters. If they are large, they can distract the orbit of the Earth |
| What happens during a high tide? | the moon and the Sun both exhert title forces on the Earth along the same line |
