Sun Earth Moon - Solar System

If the Earth completes one orbit around the sun then it has completed one

• revolution

• rotation

• one day

• year

An earth day is

• ~ 24 hours

• one earth rotation

• one lunar month

• one earth revolution

Moon phases...

• occur in irregular patterns

• have two full moon per cycle

• are caused by changes in the relative positions of the moon, sun, and earth as the moon revolves around earth.

• occur due to the earth's shadow covering parts of the lit moon

A lunar eclipse occurs...

• when the moon casts a shadow on a portion of Earth’s surface

• when Earth casts a shadow on the moon

• when the moon is between the Earth and the sun

• when the sun is between the Earth and the moon.

The following statements are about the time of day and night on Earth.

• The day and night are a result of the Earth’s rotation.

• The day and night are a result of the Earth’s revolution.

• Daylight in the northern hemisphere lasts longer during the winter.

• Daylight last longer in the southern hemisphere when the North Pole is pointed towards the sun.

The shape of Earth’s orbit around the sun is...

• unpredictable.

• extremely elliptical.

• almost circular / slightly elliptical.

• a straight line.

• the cause of the seasons.

The moon phase between a quarter moon and a full moon is called __________ moon.

• a gibbous

• a full

• a quarter

• a crescent

The ______________are caused by the tilt of the Earth’s axis as it moves around the sun.

• rotation

• changes between day and night

• seasons

• lunar cycle

A __________ is a natural satellite that orbits any planet and Jupiter has about 70 of them.

• stars

• planets

• rings

• moon

A ____________eclipse can occur when the moon passes between the sun and the earth.

• solar

• lunar

• full moon

• neap tide