Curated OER
Chandra Explores Angular Size
For this angular size worksheet, high schoolers read about how astronomers determine the size of objects in the sky by using their angular size. Students are given equations that allow scientists to convert the angular size into...
Other
H Twins: The Scale of the Universe 2
Use the scroll bar on this site to zoom in and out of this site which will show you the relative sizes of hundreds of things in our univers, from the smallest currently known - quantum foam - to the largest - our universe. Click on any...