6.1.1-6.1.2 · Earth and the Solar SystemLesson 1 of 13Free preview
Day and night: the Earth's rotation
The Earth spins on a tilted axis once in about 24 hours, so the Sun seems to cross the sky.
6.1.1-6.1.2 · Earth and the Solar SystemLesson 1 of 13Free preview
The Earth spins on a tilted axis once in about 24 hours, so the Sun seems to cross the sky.