Water filtration

This week we learned water filtration.

First we put some pictures of sand and rock on the top.Then the sand and the cotton.We can decide the order.

Then we label and give the reason why we put them in that order.After we done that we need to give predict.Predict is means to think what will happen.Even if you don’t guess the right answer, it’s still predict.

At the end I enjoy doing this.Because I like it.

 

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