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What are the main factors that determine seasonal temperature variations?

The 23.5˚ tilt in the earth’s axis combined with the earth’s elliptical orbit around the sun are the main factors that determine seasonal temperature variations.

How does sun angle affect temperature?

When the sun’s rays strike Earth’s surface near the equator, the incoming solar radiation is more direct (nearly perpendicular or closer to a 90˚ angle). At higher latitudes, the angle of solar radiation is smaller, causing energy to be spread over a larger area of the surface and cooler temperatures.

What are the factors contributing to polar climate?

Just like other areas on Earth, weather and climate in the Arctic depends on a lot of variables, including latitude that affects how much energy is received from the sun, and the distribution land and water. Arctic climates are highly varied.

How does the angle of sunlight affect the climate of each of the climate zones?

Sunlight rays are concentrated on smaller surface areas, causing warmer temperatures and climates. In the middle latitudes, the angle of the Sun’s incoming rays varies from lower in the winter to higher in the summer, causing seasonal temperature changes.

During which season does the angle result in the greatest area covered by the Rays?


Does the length of the shadows change from season to season?

The sun doesn’t change size or temperature during the seasons, only our position changes. The days get longer, our shadows get shorter, but the science stays the same.

What causes the length of shadows to change over the course of the day?

The sun is the star around which Earth moves in orbit. Since the sun’s position in the sky during the course of the day changes due to the rotation of Earth on its axis, the shapes of outdoor shadows also change during the course of the day.

Can the sun have a shadow?

Technically, like any non-transparent object, the Sun would cast a shadow on another object. So theoretically, it does cast a shadow, practically it would only do so if a brighter star (or other source of light) were to appear or move near it.

Why does the sun cast two different types of shadows?

The Sun is a very large light source, its diameter exceeding that of both the Earth and the Moon. This means that, on their journey through space, both objects produce all 3 types of shadows.

Why does the sun make different kind of shadows in the seasons?

Earth’s axis is tilted slightly off-center. During our summer, the northern half of Earth is tilted, or leaning, toward the Sun. So, the Sun’s light hits the northern half of Earth at a more direct angle. Because the Sun is more directly overhead, shadows are smaller in the summer than in the winter.

What is Sun shadow?

n. 1 a dark image or shape cast on a surface by the interception of light rays by an opaque body. 2 an area of relative darkness. 3 the dark portions of a picture.

How much of the moon is always lit by the sun?


How much of the moon is lit up at any given time?

At New Moon, the percent illuminated is 0; at First and Third Quarters, it is 50%; and at Full Moon, it is 100%. During the crescent phases the percent illuminated is between 0 and 50% and during gibbous phases it is between 50% and 100%.

When the lunar phases are growing or getting larger it is called?

When the Moon appears smaller than a quarter, we call it a crescent. When the Moon appears larger than a quarter, we call it gibbous. When the moon is getting bigger (phases New to Full) it is waxing. When it is getting smaller (phases Full to New) it is waning.

Does the dark side of the moon ever get sunlight?

While many misconstrue this to think that the “dark side” receives little to no sunlight, in reality, both the near and far sides receive (on average) almost equal amounts of light directly from the Sun. However, the near side also receives sunlight reflected from the Earth, known as earthshine.

Does Moon have a dark side?

The ‘dark side’ of the Moon refers to the hemisphere of the Moon that is facing away from the Earth. In reality it is no darker than any other part of the Moon’s surface as sunlight does in fact fall equally on all sides of the Moon.

Does the sun only shine on one side of the moon?

We know that the Moon is round like a ball, and we know that the Sun may shine on all sides of the Moon. So the only part of the Moon that is truly dark, is the side that’s aimed away from the Sun at any given time. At the time of the full moon, the Sun is shining full on the face we always see.