What We Will Cover in the Chapter

Last updated at July 13, 2026 by

This chapter explains how the Earth spins on its axis, how it orbits the Sun, why we have seasons, and how solar and lunar eclipses happen.

Understanding the Name of the Chapter

Earth
Our planet, which spins and orbits the Sun.
Moon
The Earth's natural satellite that orbits it.
and
Linking the three bodies of this chapter.
the
Pointing to the single star at the centre.
Sun
The star at the centre that lights the Earth.
What does the name of this chapter tell us?
  • The chapter is about the Earth, the Moon, and the Sun.
  • The Earth spins and also orbits the Sun.
  • The Moon orbits the Earth.
  • Their movements cause day, night, seasons, and eclipses.
A diagram of the Earth and Moon moving around the Sun.

Topics We Will Study in This Chapter

Topics We Will Study
Intro Introduction 12.1 Rotation of the Earth
12.2 Revolution of the Earth
12.2.1 Changing view of night sky from the Earth 12.2.2 Seasons on the Earth
12.3 Eclipses
12.3.1 Solar eclipse 12.3.2 Lunar eclipse
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