Science A Closer Look - Earth And Sun

Front 1

The force of attraction between any two objects

Back 1

gravity

Front 2

The strength of gravity increases as the BLANK of objects increases and decreases as the distance between objects increases

Back 2

mass

Front 3

the sun's gravitational pull on the Earth is BLANK than it's pull on a planet much farther away, such as Neptune

Back 3

stronger

Front 4

a path that one object takes as it moves around another object is its

Back 4

orbit

Front 5

moving objects have the tendency to keep moving in a straight line; this is called

Back 5

inertia

Front 6

because of the effects of gravity and inertia, Earth moves in a nearly circular orbit shaped like an

Back 6

ellipse

Front 7

every year, Earth makes one complete trip around the Sun. This is called a.....

Back 7

revolution

Front 8

as Earth revolves around the Sun, sunlight strikes different parts of Earth at different

Back 8

angles

Front 9

Sunlight strikes Earth differently at different times of year because EArth's axis is...

Back 9

tilted

Front 10

Earth and the other planets move in orbits around the

Back 10

sun

Front 11

the changes in the angle of sunlight on Earth's surface cause the

Back 11

seasons

Front 12

when the northern hemisphere is tilted away from the sun, the season there is

Back 12

winter

Front 13

when it is winter in the northern hemisphere, it is BLANK in the southern Hemisphere

Back 13

summer

Front 14

the heat energy of sunlight is more concentrated in the summer because the hemisphere having summer is tilted BLANK the sun

Back 14

toward

Front 15

As Earth revolves around the Sun, it also BLANK on its axis

Back 15

rotates

Front 16

at any time, half of Earth faces the sun and has BLANK1 while the other half faces away and has BLANK2

Back 16

daylight, darkness