Today at our Zoom meeting we looked at the giant ice ball Mrs James made, and it was amazing! Not only could you hear it begin to crack almost instantly, we noticed that the green food colouring had mainly settled on the bottom.
You can see that the ice ball has, what looks like, an explosion of bubbles in the centre of the ball.
We added salt to the top of the ice and have noticed that the salt has quickly hardened but the ice is also being eaten away quicker than the places without the salt.
We have also noticed that even though green food colouring was added, it seems that the green has been separated into more yellowy green in places, and more bluey green in others.
What a neat science experiment!