Last-minute science fair projects

Remember: Science fair projects are due...NOW! It's no secret that kids sometimes put off doing their assignments, especially if they get busy or don't know where to begin. But with this compilation at hand, their science fair problems are over, because it's full of super-quick ideas sure to wow the crowd and the judges. All the experiments use common, easy to find materials, and there's valuable advice on creating an appealing presentation and writing an accompanying report. Construct a "Juice Rocket"; grow crystals along a piece of string; build a biosphere; and mummify an orange. And here's one for the birds: an experiment to determine if our avian friends prefer one type of food over another. Every project is smart and fun!