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18 Cards in this Set

  • Front
  • Back

Earth's spinning on its axis is called its

rotation

Earth makes a complete rotation on its axis every

24 hours

When the south end of the Earth's axis is tilted toward the sun it is winter in the

Northern Hemisphere

When the sun, moon, and Earth line up we have a

Spring tide

The darkest part of the moon's shadow is the

umbra

The moon's surface gets very hot in direct sunlight because

there is no atmesphere

The two days on which the sun is overhead at either 23.5 degrees north or south are called

solstices

A tide with the smallest difference between low and high tides are called a

neap tide

A lunar eclipse occurs when the moon is in the ___________ phase

full moon

Each of the two days of the year when neither hemisphere is tilted toward the sun is known a

equinox

In one year, Earth completes 365

rotations

The day in March on which the sun is overhead at noon at the equator is called the

vernal equinox

A ___________ occurs during a full moon when Earth is directly between the moon and the sun

Lunar Eclipse

When the moon is in Earth's ________________, you see a total lunar eclipse

Umbra

The tendency of an object to resist a change in motion is

inertia

The pull of gravity on the surface of the moon is ____________ that of Earth

1/6th

The force of gravity on an object is its

weight

The distance between two objects and the ___________ of the objects determine the strength of the force of gravity

mass