Use a Funnel: If you're using a narrow-necked bottle for the volcano, a funnel can make adding the baking soda and vinegar much easier and less messy. Hands-on science with preschoolers does ...

The children built the snowmen by folding baking soda into a paper towel ... Orser is planning to introduce a science fair ...

It doesn't have an expiration date. To test your baking soda add a bit of vinegar. If it bubbles, it's still usable. More from Science Many people think baking powder and baking soda are ...

There is something special about sharing baked goods with family, friends and colleagues. But I'll never forget the disappointment of serving my colleagues rhubarb muffins that had failed to rise.