Question

Hours of sunlight change throughout the seasons. This change directly relates to the average temperature during the seasons. Design an investigation that would support this claim.

Answer 1

Answer:

What causes our seasons?

We have seasons because Earth's axis – the imaginary line that goes through the Earth and around which the Earth spins — is tilted. It's tilted about 23.5 degrees relative to our plane of orbit (the ecliptic) around the Sun. As we orbit our Sun, our axis always points to the same fixed location in space. Our northern axis points almost directly toward Polaris, the North Star.

Earth Orbits Our Sun

This picture shows Earth from its side as it orbits our Sun. The axis is tilted and points to the North Star no matter where Earth is in its orbit. Because of this, the distribution of the Sun's rays changes. In June, in the northern hemisphere summer, the Sun's rays — and warmth — reach all the way to the north pole. In December, in the northern hemisphere winter, the north pole is tilted away from the incoming sunshine.

Answer 2

Explanation:

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The tilt of the earth doesn't just affect the amount of daylight reaching the earth's surface. The sun provides not only light, but heat, so the presence or absence of direct sunlight (solar insolation) affects seasonal temperatures.

The Earth's movement around this axis causes the change between day and night. During summer in the Northern Hemisphere, daylight hours increase the farther north you go. The Arctic gets very little darkness at night. The seasonal changes in daylight hours are small near the Equator and more extreme close to the poles.