Gr7 - Sun and Earth Relationship Quiz

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Questions and Answers

What is the name of the star that lies at the center of the solar system?

Sun (correct)

Mars

Venus

Jupiter

How long does it take for the Earth to rotate once on its axis?

12 hours

24 hours (correct)

36 hours

48 hours

What is the Earth's axis?

The path the Earth follows around the Sun

A straight line passing through the center of the Earth and around which the Earth rotates (correct)

A line connecting the North and South poles

The imaginary line that separates the Earth into two hemispheres

What causes the seasons experienced on Earth?

The tilt of the Earth's axis and its revolution around the Sun Signup and view all the answers

How long does it take for the Earth to revolve around the Sun?

365.25 days Signup and view all the answers

What causes daytime and nighttime on Earth?

The Earth's rotation on its axis Signup and view all the answers

In which season is the Sun highest in the sky?

Summer Signup and view all the answers

On which day is the Sun nearest to being overhead in South Africa?

21 September Signup and view all the answers

In which hemisphere is 21 June the shortest day of the year?

Southern Hemisphere Signup and view all the answers

Why do summer and winter bring different temperatures in most parts of the world?

Due to the height of the midday sun and the length of the day Signup and view all the answers

Which region shown on the diagram would be the hottest?

The region where the Sun is highest in the sky Signup and view all the answers

What does the height of the midday sun depend on?

Season and latitude Signup and view all the answers

What is the halfway region between the equator and the Poles called?

Mid-latitude Region Signup and view all the answers

What causes the changing seasons on Earth?

The tilt of the Earth's axis as it revolves around the Sun Signup and view all the answers

What would happen if the Earth's axis were not tilted?

There would be no seasons anywhere on Earth Signup and view all the answers

What causes the 'Lands of the Midnight Sun' phenomenon near the poles?

The Sun never setting for about six months Signup and view all the answers

What determines whether a hemisphere experiences summer or winter?

The hemisphere's tilt towards or away from the Sun Signup and view all the answers

What is the term for the varying amounts of solar energy received from the Sun?

Insolation Signup and view all the answers

What combination of Earth's movements and tilt results in changing weather conditions and characteristic seasons?

Rotation, revolution, and tilt of the Earth Signup and view all the answers

What causes the solstices to mark the Sun's highest position in the sky?

The Earth's revolution and 23.5° tilt on its axis Signup and view all the answers

What is the key factor in generating the world's weather systems?

Difference in solar heating at various latitudes Signup and view all the answers

What creates high-pressure areas, generating wind?

Cool air sinking Signup and view all the answers

What affects the heating effect on the Earth's surface?

The angle at which the Sun's rays strike the Earth's surface Signup and view all the answers

What happens on 22 December due to the Sun's position?

The Sun is almost directly overhead the southern tropic, leading to longer days Signup and view all the answers

What causes mid-latitude regions to experience moderate temperatures?

Varying Sun heights on 21 December Signup and view all the answers

Study Notes

The Relationship of the Sun to the Earth

The solstices occur on 22 December and 21 June, marking the Sun's highest position in the sky and the longest or shortest day of the year depending on the hemisphere.
Seasons are influenced by the Earth's distance from the equator, the amount of solar radiation it receives, and the Earth's revolution and 23.5° tilt on its axis.
The summer solstice in the Southern Hemisphere is on 22 December, while in the Northern Hemisphere it is on 21 June.
Equinoxes occur on 21 March and 22 September, with equal durations of day and night.
Temperatures near the equator remain relatively constant, while those further away experience greater seasonal variations.
The concentration of solar energy at different latitudes affects temperature variations and the length of day and night.
The difference in solar heating at various latitudes is a key factor in generating the world's weather systems.
Warm air rising from the Earth's surface creates low-pressure areas, while cool air sinking creates high-pressure areas, generating wind.
The angle at which the Sun's rays strike the Earth's surface, due to the Earth's curvature, affects the heating effect.
The height of the midday Sun varies throughout the year, influencing the length of days and seasons.
On 22 December, the Sun is almost directly overhead the southern tropic, leading to longer days, while in June, the Sun is largely invisible in the Southern Polar Region.
Mid-latitude regions experience moderate temperatures, neither very hot nor very cold, with varying Sun heights on 21 December.

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Description

Explore the relationship between the Sun and the Earth with this quiz. Test your knowledge of solstices, equinoxes, seasonal variations, solar radiation, and the impact on climate and weather systems. Gain insights into the Earth's tilt, the Sun's position, and its influence on day length and temperature variations at different latitudes.