 Here's a fun water activity you can use to help a child practice predicting and testing. For this activity, all you need is a cup and a larger bowl. You can ask the child, how many cups do you think it will take to fill this bowl with water? And the child can make a guess. Let's say they pick four and then they can test that guess by filling the cup with water and pouring it into the bowl. And it can help to count out loud as you're doing this. So that was one cup. This is two cups and then three cups and four cups. But it's not quite full yet, so we still have a few more to go. So that's five cups, six cups, and seven cups. So in this case, the child's guess was four, but it actually took seven, so you can talk about these results. And you can ask them, did it end up being more or less than what you guessed? By predicting, testing, and talking about the results, a child is learning to think like a scientist.