Day 2: Earth's Revolution and the Seasons
While Earth around the Sun takes
rotates on its axis It also rovolves around the Sun. This journey Earth's revolution that causes the
seasons:It's the combination of Its rovolution with the tilt of its axis.
Earth's axis is an imaginary line that runs through its center, tilting at an angle of about 23.5 degrees As Earth
travels around the Sun, its tilted axis always points in the same diroction, towards the North Star. This tilt
means that different parts of the Earth recolve varying amounts of direct sunlight throughout the year.
During summer in the Northern Homisphore, the Earth is tilted so that the North Pole leans towards tho Sun.
This means the Northern Hemisphere receives more direct sunlight, resulting in longer days and warmer
temperatures.In contrast, the Southern Hemisphore experiences wintor, with shorter days and colder
temporatures.
As Earth continues its Journey around the Sun the tilt gradually changes In winter in the Northern
Hemisphere, the North Pole leans away from the Sun. This rosults in shorter days, less direct sunlight, and
colder temperatures. Meanwhile, the Southern Hemisphere experiences summer.
The changing seasons bring about a variety of observable changes in nature Plants bloom in the spring, trees
shod their leaves in the fall, and animals adapt to the changing temperatures and food availability throughout
the year.
1. What is the main cause of the seasons on Earth? a)The Earth's rotation on its axis b) The Earth's
revolution around the Sun c) The tilt of the Earth's axis as it revolves around the Sun d) The changing distance
between the Earth and the Sun
2. How does the tilt of Earth's axis affect the amount of sunlight received at different locations on
Earth? a) It has no effect on the amount of sunlight received. b)It causes some parts of Earth to receive more
direct sunlight than others throughout the year. c)It causes all parts of Earth to receive equal amounts of
sunlight throughout the year.d) It causes the Earth to be closer to the Sun during some parts of the year.
3. Which season occurs in the Northern Hemisphere when the North Pole is tilted towards the Sun? a) Spring b) Summer c)Autumn d) Winter
4. How do the changing seasons affect living things on Earth? a)They have no significant impact on living
things. b) They cause living things to hibernate during all seasons. c)They cause changes in plant growth.
animal behavior, and other natural phenomena. d) They cause all living things to migrate to warmer climates.
Explain why days are longer in the summer
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