How would you describe your journey throughout the competition as making a sandwich? Image by EncycloPetey,Wikimedia.

Today 3 more scientists were voted out of the competition, sorry to Clare, Michelle and Louise S.

Who’ll be next to go? Only students get to decide, so get voting to save your favourite scientist!

Highlights from live chats today include:

whatisa: what if cells were bigger and heavier
katiehowe: cells are all diff sizes, eg sperm are very small and have a tail so they can swim, and eggs are fat and round so they can sit and wait for the sperm! if they were heavier we might not be able to lmove our body as it would be too heavy!

ben14: where do dead blood cells go
michellelinterman: dead red blood cells leave your body in your poo! that is why it is brown!

busybodyscientist: if you smashed a cell like you would smash a rock, would the cell squish into a slimy thing, or would it form llots of other cells?
michellelinterman: if you physically bust a cell it would be a slimy mess

sophie7: how come sometimes we can see the moon in the middle of the day,does this mean that other countrys wich are in the middle of there night cant see it???
robertinsall: it depends on how bright it is and how bright the sun is. In africa thre sun’s so bright you can’t see the moon in the day

Cancer Zone students have also been asking how does cancer travel to the brain and why sneezing is more enjoyable than coughing?

Genes Zone have been describing their journey through the competition as making a sandwich and explaining how animals figure out how to reproduce.

And in Cells Zone scientist Katie has been letting us know what age women are most likely to produce a healthy baby.