"The solar system includes the Sun, the eight planets, and their 1258 presently known moons. It also includes asteroids, meteoroids, comets, and interplanetary duat. Come on a journey and travel through our solar system. Visit all eight planets, and discover if NEOs are a threat to Earth" (publisher).

Level 5.

Our solar system -- Model of the solar system -- The sun -- Mercury and Venus -- Earth and its moon -- Mars -- Jupiter and Saturn -- Uranus, Neptune, and Pluto -- Asteroids, meteoroids, and comets -- Are NEOs a threat to Earth? -- Seasons on Earth -- Day and night -- Solar eclipse -- Table, glossary, and index.