Exploring the Science Behind Seasons

What are the two main factors that broadly characterize seasons?

• Length of day or night and precipitation

• Average temperature and humidity

• Average temperature and length of day or night

• Average temperature and precipitation

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NGSS.MS-ESS1-1

NGSS.MS-ESS2-6

What is the primary cause of the seasons on Earth?

• The tilt of Earth's rotational axis

• The speed of Earth's rotation

• The varying distance of Earth from the Sun

• The shape of Earth's orbit

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NGSS.MS-ESS1-1

When the Northern Hemisphere is tilted towards the Sun, what season does it experience?

• Winter

• Spring

• Summer

• Autumn

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What are solstices?

• Times when the poles are either farthest or closest to the Sun

• Times when the Earth is farthest from the Sun

• Times when day and night are of equal length

• Times when the Earth is closest to the Sun

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NGSS.MS-ESS1-1

What marks the beginning of spring in the Northern Hemisphere?

• March equinox

• Summer solstice

• Winter solstice

• September equinox

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NGSS.MS-ESS1-1

When is the Earth closest to the Sun?

• December

• June

• September

• January

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NGSS.MS-ESS1-1

Does the axial tilt of Earth change over short periods of time?

• Yes, it changes every year

• No, it remains constant throughout the year

• Yes, it changes every month

• No, it changes only over long periods of time