Portal:Science/Fun corner

Sharpen your scientific thinking
This is an online interactive quiz available on Encyclopedia Britannica and has 60 questions on various topics of science. Play and enjoy! To access the quiz click here.

Scale of the universe
This is a beautiful website that shows the dimensions of all matter in the universe - smallest to largest. Please click here to enjoy. This was shared by R Manjunath, SADPI, DSERT.

Which animal blood is blue in colour?
Horseshoe crab blood is is bright blue bcoz of copper-based hemocyanin to transport oxygen where vertebrates use iron in hemoglobin.