5th - Science Unit 8 L1/2 study Guide Flashcards
The causes seasons
Changes in the angles of sunlight as earth revolves around the sun
Is the sun a star
Yes
What keeps the earth in orbit around the sun
Gravity and inertia
Why do we not feel the earth moving
Because we move with the earth as it rotates
What time is the earth closest to the sun and when is it the farthest
Closest is in the summer and farthest is in the winter
How long does it take the earth to complete a revolution around the sun
365 1/4 days (one year)
Define gravity
X
How long does it take to complete on its axis
24 hours (one day)
Because the tilt of the earth’s axis always the same direction, the seasons in the Northern hemisphere and the southern hemisphere are always
Changing
What Affects the length of a day
The tilt of Earths’s axis
What would happen if the earth was not tilted on its axis
We would not have an seasons
What is a constellation
C
And what direction does the earth rotate
West to east
Star
Object that produces its own light and thermal energy
Orbit
Path that one object takes around another object
