Eli5 Why is water see through?

Question

My 4 year old asked me and I think it’s a rather good question that I would like to answer so she understands. Thanks 🙏🏻

In: 1926

Answer 1

I think for a 4 year old, just explain that light can go through it and light can’t go through other things. If she actually does want to know why it goes through some things and others, then you can busy out the material science questions