Question

step 9 what did you observe about sunlight on earth in winter? why does the northern hemisphere have lower temperatures in winter? use what you observed to explain.
step 10 look at the sphere. when the northern hemisphere tilts away from the sun, what season would you expect to experience in the southern hemisphere? why?
the tilt of earth
the spherical shape of earth explains why it gets colder as you get closer to the poles, and why the height of the sun appears lower in the sky as you get closer to the poles. but these ideas alone do not completely explain why it is warmer in summer than in winter.
what did you learn as your model earth moved around the model sun? because earths tilt did not change, the amount of sunlight reaching a specific area of earth did change. as earth orbits the sun, the area of earth that is pointed more toward the sun changes because earth is always tilted in the same direction. so, the reason we have seasons is because of a combination of earths tilt and earths revolution.
when the northern hemisphere points toward the sun, the southern hemisphere points away from the sun. seasons in the southern hemisphere are opposite from those in the northern hemisphere. in december, it is winter in canada and summer in australia.

1. do the north and south poles always stay in the same position relative to the sun? explain your reasoning.

Explanation:

The Earth's tilt and its revolution around the sun cause the position of the North and South Poles relative to the sun to change. As Earth orbits the sun, different hemispheres tilt towards or away from the sun at different times of the year. This is why we have seasons. For example, when the Northern Hemisphere tilts towards the sun, it is summer there, and the North Pole has more sunlight. At the same time, the Southern Hemisphere tilts away, and it is winter there with the South Pole having less sunlight. As Earth continues its orbit, this relationship reverses.

Answer:

No, the North and South Poles do not always stay in the same position relative to the sun. This is because of Earth's tilt and its revolution around the sun. As Earth orbits the sun, the hemisphere (and thus the pole) that is tilted towards the sun changes. For instance, in June, the Northern Hemisphere (and the North Pole) is tilted more towards the sun, while in December, the Southern Hemisphere (and the South Pole) is tilted more towards the sun.