How does the Sun illuminate the Earth?
that the tilt of the Earth's axis in combination with its orbit causes changes in the Sun's height above the horizon.
what is the effect of the tilt in Earth's rotation axis on the creation of its climate zones;
mark the Earth's climate zones and their borders on the globe;
We already know that the length of day and night changes in Poland. Did you know that there are places in the world where the day and night are the same all year long? Do you know that at the poles for half a year the Sun does not go down, and for the next six months it does not rise at all?
Travelling around the Sun with a constant tilt in the axis of its rotation causes the Earth’s surface to be illuminated in different ways. On this basis, five climate zones on Earth can be distinguished. The zones have borders- tropics and polar zones, which are marked on maps and globes.
The most strongly illuminated and heated areas by the Sun are the tropicstropics, including the centrally located equator that crosses it. In the tropics, almost everywhere, twice a year, (on the summer and winter solstices) the Sun rises to its zenith. When this happens, it lights and heats the surface of the Earth the strongest. Only at the borders of the tropics does the sun rise to its zenith once a year. Days and nights on the equator always last for 12 hours, and in the entire tropics the differences in the duration of them are small. Two temperate zonestemperate zones extend between The Tropic of Cancer and The Arctic Circle (in the northern hemisphere) and between The Tropic of Capricorn and The Antarctic Circle in the southern hemisphere. In these zones the Sun does not reach its zenith, and every day the duration of day and night changes.
The least illuminated and heated are the two polar zonespolar zones the borders of which are the Arctic and Antarctic circles. In these zones there is a phenomenon called polar day, when for a long period of time the sun does not go down and glow low over the horizon 24 hours a day, and also polar night, when for a long period of time the Sun does not rise at all.
Choose the names of climate zones lying between the tropics and the polar zones.
- subtropical
- equatorial zone
- intertropical
- tropics
- southern temperate zone
- northern temperate zone
Summary
The tilting of the Earth's axis causes the creation of Earth’s climate zones.
We can distinguish 5 climate zones on Earth: the tropics, two temperate zones and two polar zones.
Keywords
tropics, polar zones, temperate zones
Glossary
strefa międzyzwrotnikowa – jedna ze stref oświetlenia Ziemi położona między zwrotnikiem Raka a zwrotnikiem Koziorożca
strefa podbiegunowa – strefa oświetlenia Ziemi położona za kołem podbiegunowym
strefa umiarkowana – strefa oświetlenia Ziemi położona między zwrotnikiem a kołem podbiegunowym