Let's suppose you need to measure the mass of some water, and you want to construct a scale to do it. But you are in a normal house filled with normal stuff. There’s no fancy scientific equipment. Can ...

Build a bridge that can hold rocks with your child. One at a time, place rocks in the center of the paper and observe how many rocks the paper can hold before it falls. Ask your child what he thinks ...

Chinese barbecue pork, or “char siu” in Cantonese, is a standard item found in every Chinese deli and restaurant. Not so traditional is my family’s rather unique way of making it. With paper clips.