To Scale: The Solar System

Interactive Scale Of The Universe Trying to imagine the smallest things in our universe is a rather difficult task. Similarly, it is hard to truly conceive of the largest things in the cosmos—supermassive black holes, large quasar groups, and the most massive stars. So it’s not too surprising that simultaneously imagining the smallest of the small and the largest of the large […] Trying to imagine the smallest things in our universe is a rather difficult task.

Elementary Lesson Plan about the Solar System A Study of the Size and Scale of the Sun and Planets This lesson for late elementary students (grades 3 - 5) teaches about Earth and Space science using an inquiry approach. It covers objects in the sky and changes in the earth and sky, as students learn the size of each planet, the vastness of space, and some special features of our solar system. Planets For Kids - Solar System Facts and Astronomy