Science test Flashcards by Michelle Niewiadomska

perigee

point in an orbit that is closest to the earth

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what occurs when day and night are of the same length in both hemispheres

equinoxes

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A moon that is ( ) is one that is getting larger each night

Waxing

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Umbra

Darker inner part of the shadow in an eclipse

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what is the order of the sun earth moon in a solar eclipse

sun moon earth

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Day and night are caused by

Earths rotation on it’s axis

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What are the four inner planets

Mercury, Venus, Earth and Mars

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what are the 4 rocky planets

Neptune, Jupitar, Saturn, Uranus

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How long does it take for Mercury to make on full orbit

3 months

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How long did it take for Venus to make one full orbit

7 months

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How many years does it take for earth to make on full orbit

1 year

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How long does it take for Venus to make one full orbit

around 2 years

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How many years does it take Jupiter to make one full orbit

12 years

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How long does it take for Saturn to make one full orbit

29 years

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How many years did it take for uranus to make one complete orbit

84 years

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How many years did it take for Neptune to make one full orbit

164 years

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what are the planets from smallest to largest

Mercury, Mars, Venus, Earth, Neptune, Uranus, Saturn, Jupiter

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What are the 2 planets that have well-developed atomospheres

venus and earth

Which planet has really thin atmosphere

Mars

Which planet has no atmosphere at all

Mercury

Which planets are mostly “made of” atmosphere?

the outter planets

What force determines the motions of planets and other objects in the solar system?

The force of Gravity

Atmosphere is made of hydrogen and helium:

Uranus

This planet appears red because its surface is covered in iron oxide (rust).

Mars

This planet is very hot during the day and extremely cold at night:

Mercury

This is the second largest planet:

Saturn

This planets axis of rotation is sideways:

Uranus

This planet has the longest rotation period of all planets in the solar system:

Venus

This planet has a prominent red spot which is a giant storm that has existed since the 17th century:

Jupitar

This planet has a very dense carbon dioxide rich atmosphere:

Venus

These two planets are mostly composed of hydrogen:

Jupitar and saturn

This is the largest planet:

Jupitar

These planets have no moons:

Mercury and Venus

This is the brightest natural object seen on Earth:

Venus

This planet has 62 moons:

Saturn

This planet most likely does not have a definite solid surface:

Jupitar

Which planet has 2 moons

Mars

Which planet has 67 moons

Jupitar

Which planet has 27 moons

Uranus

This planet most likely has a core of iron and nickel that is surrounded by metallic (solid) hydrogen, liquid hydrogen, and gaseous hydrogen.

Saturn

What keeps the earths temperature at a proper level for life

The distance away from the sun

Which planet rotates the fastest

Jupitar

What is the difference between an umbra and a penumbra

penumbra is the larger shadow where a partial eclipse occurs and the umbra is the smaller shadow where a total eclpsce occurs

What location would experience 24 hours of darkness during a summer solstic in the northern hemisphere

south pole