Science 8 Unit 1 Test😔

Orbit?

The repeating path that one object in space takes around another one

Rotate?

spinning motion of an object around its own axis

Solar Elevation?

How high the sun is in the sky, its measured in degrees from the horizon (where the sun meets the ground)

how often does the earth rotate around its axis?

once every day

how often does the earth fully orbit the sun?

once a year

why does the north star not appear to move?

because the northern hemisphere's axis is pointed directly towards it

where do the sun and moon appear to rise?

east

where do the sun and moon appear to set?

west

who created the fab space song?

Isla, Jules, and Sofia M.

which direction does earth rotate in the northern hemispher?

counter clockwise

how does earth's rotation affect how the stars appear to move?

It makes them appear to move counter clockwise around the north star

how does lower solar elevation affect temperatures?

When the solar elevation is lower the sunlight is more spread out(less light energy) causing the temperatures to be lower

how does higher solar elevation affect temperatures?

When the solar elevation is higher the sunlight is more direct (greater light energy) causing the temperatures to be higher

what is another word for the North Star?

Polaris

why do we have seasons?

Because as the earth orbits it is tilted on its axis causing the sunlight angle (solar elevation) to fluctuate throughout the year, causing seasons

Why are the temperatures always opposite between the two hemispheres?

Because when the sunlight is direct in one hemisphere it is at an angle in the other hemisphere and vice versa

What causes Manhattanhenge?

The light rays from the sun and sunset follow a straight path that align between two building in Manhattan because the solar elevation is at a specific angle that happens only two times a year

What causes the new moon?

When it is between us (earth) and the sun causing the light to only shine on one half of the moon. The one half is facing away from us.

What causes the full moon

when we (earth) are between the sun and the moon, so that the sun's light is shining on the half of the moon that is visible tho earth

True or False? we only see one side of the moon.

True.

How many phases of the moon are there?

8

How long is the moon phase cycle?

28 days

True or False? the moon isn't alway up during the night.

true.

How does the moon shine?

The sun shines onto the moon, causing moonlight