In this era of genetic engineering, it is amazing how few students have isolated DNA, which is found in all living things. Strawberries are a very good source because they have a lot of it in their cells. THIS IS REALLY FUN! Here's what you need:   Fifty minutes of time Special shampoo* Pinch of salt Frozen strawberries Saucepan    Heating source    Rubbing alcohol    Plastic drinking straws    A blender    Thermometer    Sandpaper    Directions* This is both a class lab or do-it-at-home. * For more details: www.science-projects.com/strawberryDNA.htm