science chapter 🙄

*sigh* someone put on shreksaphone, this is a long one

whats another name for planets and why are they called that?

wanderers, because they move independently.

what are the four inner planets

Mercury, Venus, earth, and mars

what are the four outer planets

Jupiter, Saturn, Uranus 😏 , and neptune

what type of planets are mostly terrestrial and made of rock

inner planets

what are outer planets called

Jovian or gaseous planets

what are outer planets mostly made of

made mostly of gasses with no solid surface

what planets have we known since the ancient times

the inner planets, Jupiter and saturn

mercury

the speediest planet; traveling at 30 miles per second. It takes Mercury only 88 days to orbit the sun.  That ‘s the shortest of any planet.

venus

seen around sunrise and sunset; it is often called the morning  and evening star. Venus rotates in a retrograde direction (backward from east to west). It’s the only planet that takes longer to rotate on its axis than it does to orbit the sun. Venus is sometimes called Earth’s twin.  It is also the hottest planet with temperatures over 460 degrees Celsius.

retrograde direction

backward from east to west

only planet suitable for life

earth

what is natural satellite

it revolves around another object

earths moon is a natural satellite true or false

true

maria

dark patches on the surface of the moon

what is Maria Latin for

seas

the moons craters have what?

light colored streaks radiating up to thousands of kilometers away from the crater.

what are the light colored streaks on the moons craters called

rays

Waxing gibbous

 the sunlit side continues to grow or bulge.

Full moon

entire face of the moon is illuminated (day 14/15 after new moon).

Solar eclipse

 new moon moves directly between the sun and the earth and blocks part or all of the sun from our view.

Annular solar eclipse

is when the moon is too small to cover the sun entirely and make the sun appear as a ring of light. 

Total solar eclipse

occurs when the moon completely covers the normally visible portion of the sun.  This can only happen when the sun and moon are in direct alignment with each other.  Only a narrow portion of the earth will experience a total eclipse. 

lunar eclipse

- full moon passes through the earth’s shadow during this the moon will darken because it can no longer reflect the sun’s light.

which planet is half the size of the earth

mars

what are mars two moons

Phobos and Deimos. Phobos orbits closer to Mars and at a faster speed than Deimos. 

 Olympus Mons.

The largest known mountain in the solar system