Revolution Of The Earth Causes The Seasons

key notes :

  1. Introduction to Seasons:
    • Seasons are different times of the year with distinct weather patterns and temperatures.
    • There are four seasons: spring, summer, autumn (fall), and winter.
  2. Earth’s Tilt:
    • Earth is not straight up and down but tilted on its axis, like a spinning top.
    • This tilt is about 23.5 degrees.
  3. Revolution Around the Sun:
    • Earth goes around the Sun in a path called an orbit.
    • It takes approximately 365.25 days to complete one orbit.
  4. Effects of Earth’s Tilt:
    • Earth’s tilt is the main reason for the changing seasons.
    • As Earth orbits the Sun, different parts of the Earth get more or less sunlight at different times of the year.
  5. Summer Season:
    • When one hemisphere (half) of the Earth is tilted towards the Sun, it’s summer in that hemisphere.
    • Days are longer, and it’s warmer during summer.
  6. Winter Season:
    • When the same hemisphere is tilted away from the Sun, it’s winter in that hemisphere.
    • Days are shorter, and it’s colder during winter.
  7. Spring and Autumn:
    • During spring and autumn, neither hemisphere is tilted towards or away from the Sun. They are in between.
    • This is why spring and autumn have moderate temperatures.
  8. Seasons in Different Hemispheres:
    • When it’s summer in one hemisphere, it’s winter in the other hemisphere.
    • For example, when it’s summer in the northern hemisphere, it’s winter in the southern hemisphere.
  9. Equator and Seasons:
    • Places near the equator don’t experience big seasonal changes because they are always close to the Sun.
  10. Summary:
    • The revolution of the Earth around the Sun and its tilt on its axis cause the changing seasons.
    • Understanding this helps us know when to expect warm and cold weather during the year.

Additional Content:

  • You can use diagrams or models to illustrate the tilt of the Earth and its orbit around the Sun.
  • You can also show pictures or videos of how seasons look in different parts of the world.
  • Conduct simple experiments or activities to demonstrate the concept of Earth’s tilt and how it affects sunlight and temperatures.

Let’s practice!