Grade 6 Science Notes

Why do seasons occur?

·       The Earth is tilted on its axis

·       As the Earth orbits the Sun, different parts of the planet receive more direct rays of sunlight

·       When the North Pole is tilted toward the Sun, the northern hemisphere receives more direct rays of sunlight -  it is summer

·       When the North Pole is tilted away from the Sun, the northern hemisphere receives fewer direct rays of sunlight -  it is winter

·       When it is summer in the northern hemisphere, it is winter in the southern hemisphere

·       In spring and fall, the Earth receives a more even amount of sunlight – most temperatures on the planet are mild