Fun With Ice - edited and updated.

 This idea follows on from the making bathtime more fun advice I wrote, as I have remembered another fun thing to do with ice.

When freezing ice for cold drinks in an ice tray, add a drop of food colouring to the water (for those who's kids are not negatively affected by colouring) before freezing it. When you want to encourage your kids to drink water, add a couple of blocks of coloured ice. As the ice melts it colours the water and that makes it a lot more interesting than just a normal glass of water and ice.

Mixing colours will also let them learn about making new colours (red and yellow make orange, blue and yellow make green, etc). If you have several ice trays, make up several colours. When the ice is set, crack the ice into an old icecream container so you can collect a variety of coloured ice to choose from.

It also works great in any other clear drink.  For curiosity sake try dropping coloured ice into other drinks and see what new colours can be invented. Ever had purple apple juice before? It doesn't work very well in cola though, as it's too dark. And orange ice in an orange coloured drink won't do much either. But blue in a yellow drink turns green. Can your children guess what colour the drink will turn when the coloured ice is added?