π Why Do We Have Seasons?
Seasons happen because the Earth is tilted on its axis and orbits the Sun. This tilt causes different parts of the Earth to receive more direct sunlight at different times of the year.
π Learning Objectives
- π§ Define 'axis' and 'orbit'.
- βοΈ Explain how the Earth's tilt affects sunlight.
- ποΈ Identify the four seasons and their characteristics.
ποΈ Materials
- πΊοΈ A globe or a ball to represent the Earth.
- π‘ A lamp or flashlight to represent the Sun.
- π¨ Markers or crayons.
- βοΈ Construction paper.
βοΈ Warm-up (5 mins)
Ask the students: "What is your favorite season, and why?" Discuss different types of weather during each season.
π§ Main Instruction
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Introducing the Earth and its Axis:
- π Show the globe. Explain that the Earth is round like a ball.
- π Point out the imaginary line (axis) that runs through the North and South Poles.
- π Demonstrate how the Earth spins (rotates) on its axis.
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Explaining Earth's Orbit around the Sun:
- βοΈ Use the lamp as the Sun. Show how the Earth travels (orbits) around the Sun.
- ποΈ Explain that it takes one year for the Earth to go around the Sun once.
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The Tilt and Seasons:
- π Show how the Earth is tilted on its axis.
- βοΈ Explain that when the Northern Hemisphere is tilted towards the Sun, it's summer there, and when it's tilted away, it's winter.
- π‘οΈ Demonstrate how different parts of the Earth get more direct sunlight depending on the tilt.
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The Four Seasons:
- πΈ Describe Spring: Flowers bloom, weather gets warmer.
- βοΈ Describe Summer: Hot weather, long days.
- π Describe Autumn (Fall): Leaves change color, weather gets cooler.
- βοΈ Describe Winter: Cold weather, snow in some places.
π Assessment
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Activity: Season Wheel
- π¨ Have each student draw a circle on construction paper and divide it into four parts.
- ποΈ Ask them to draw pictures representing each season in the corresponding section.
- π£οΈ Have students present their season wheels, explaining what they drew.