Earth Science

Front 1

When the earth changes from a solid to a liquid, What is it called?

Back 1

Athenosphere

Front 2

The zone that makes up nearly two thirds of the eath's mass is the.

Back 2

mantle

Front 3

The boundary between the earth's crust and mantle is called the

Back 3

Moho

Front 4

The amount of matter in an object is the object's

Back 4

mass

Front 5

The wobbling motion made by the earth's axis as it turns in space is called.

Back 5

precession

Front 6

When the sun's rays reach their highest angle in the Northern Hemisphere, the season there is

Back 6

summer

Front 7

At noon on the winter solstice, the sun's vertical rays strike the earth along the

Back 7

Tropic of Capricorn

Front 8

The force of attraction betwen all matter in the universe

Back 8

Gravity

Front 9

The principle that the force of attraction between two objects depends on the masses and the distance between the objects.

Back 9

Law of Gravitation

Front 10

The zone of rock below the Earth's crust.

Back 10

Mantle

Front 11

The center of a planetary body, such as the Earth.

Back 11

core

Front 12

The outermost zone of the solid Earth.

Back 12

Crust

Front 13

The movement of a planet around the Sun

Back 13

Revolution

Front 14

The spinning of a planet on its axis

Back 14

Rotation

Front 15

The beginning of spring

Back 15

Vernal Equinox