Understanding Earth and Stars

Front

What is the main reason stars appear dimmer than the Sun when viewed from Earth?

Back

Other stars are much farther away

Front

What causes day and night on Earth?

Back

Earth's rotation on its axis

Front

How long does it take Earth to complete one full rotation on its axis?

Back

24 hours

Front

What is the primary cause of seasons on Earth?

Back

Earth's tilted axis and revolution (orbit) around the Sun

Front

Why do shadows appear to change length throughout the day?

Back

The Earth's rotation changes the Sun's position

Front

How many days does it take Earth to complete one revolution around the Sun?

Back

365 days

Front

The Sun is the biggest star. True or False?

Back

False. It is the closest star to the Earth, making it appear to be larger than others.

Front

What determines the direction of a shadow during the day?

Back

The position of the Sun in the sky

Front

The Sun's path is longer in the summer, making the days longer. True or false?

Back

True. Because of Earth's tilt, the Sun rises earlier and sets later in the summer season.

Front

Why do some stars appear brighter than others in the night sky?

Back

Stars produce different amounts of light and are at different distances.