Junk Drawer Biology: 50 Awesome Experiments That Don't Cost a Thing

There’s no need for expensive, high-tech lab equipment to perform biology experiments—you probably have all you need in your home junk drawer. Use balloons, drinking straws, and empty plastic bottles to construct working models of hearts and lungs. Investigate plant transpiration and photosynthesis with leaves and resealable bags. Build a candy DNA model using gumdrops, toothpicks, and licorice rope. Study capillary action in plant xylem using colored water and paper towels. Extract DNA fro...