If anyone knows a better way to teach about transparent and opaque materials, and about different degrees of translucency, please let me know. Anyway, here’s the story. Barbie needs a new bathroom window. It can’t be transparent (obviously) and it can’t be opaque because she wouldn’t be able to see to put her make-up on. So she goes to B&Q even though other DIY stores are available in her local neighbourhood. Confronted by a wide variety of translucent, frosted-glass windows she is unable to come to a decision as to which one would be best for her needs. Not because she’s a girly blonde, you understand, as the same thing happened in Ken’s bathroom and he was just as stumped as she was. Anyway, she enlists the help of our intrepid Y6 scientists. A somewhat unlikely scenario, I agree, but it gets the children to set up a series of fair tests to gather reliable (though subjective) data from which to draw reasoned conclusions. Better than watching a video or copying & pasting from the internet or even (heaven forbid!) reading about materials in a book. I’m sure you’ll agree.