PHILADELPHIA (WPVI) -- Everyone knows it's cold it is outside. The entire Philadelphia region has remained below freezing for the seventh day in a row, with little relief in sight. But we are tapping ...

Experiment #1 – Is it an acid, base or neither? The pH scale (which ranges from 0 to 14) gives us the ability to understand how acidic (pH lower than 7) or basic (pH higher than 7) an item is. We can ...

Let me be transparent–I’m not going to pretend these kitchen experiments won’t create a mess. They will. There will be vinegar on your floor, food coloring on hands that lasts a day or two, and ...