Science Tek

Day and night on Earth are caused by Earth's

• orbit

• rotation

• revolution

• axis

It takes ________ hours for Earth to complete one rotation.

• 8

• 16

• 24

• 36

It takes __________ days for Earth to complete one revolution.

• 120

• 250

• 365

• 420

People in the shaded area of Earth are experiencing ______________.

• sundown

• sunrise

• day

• night

Earth's _________________ makes it appear that the sun moves across the sky.

• revolution

• rotation

• orbit

• axis

Which of these best explains why the sun appears to move across the sky each day?

• Lunar cycle

• Earth's rotation on its axis

• Earth's revolution around the sun

• The position of the Moon around the Earth

A student builds a model of the solar system that includes a sphere representing Earth. The sphere turns in a full circle on its axis. By using a model of Earth that spins on its axis, the student can best demonstrate-

• the cycle of the four seasons

• the aging of a star

• the passing of a year

• the cycle of day and night

A student is looking for evidence that Earth is always rotating on its axis. Which of the following would provide the best evidence?

• The different amount of rain that falls each day

• The appearance of shadows changing throughout the day

• The presence of other planets in the night sky

• The different phases of the moon in a month

Which of these cycles is a direct result of Earth's rotation?

• Day and night

• Moon phases

• Rainfall and evaporation

• Seasons

On which side of a house in Texas should a window be placed so that the people inside the house can see the sunrise each day through the window?

• North

• South

• East

• West