Big book of science experiments.
(Book)

Introduction: What do scientists do?

Earth science. In the clouds. Are clouds salty? ; The sun. Does paper need sunscreen, too? ; Earth on the move. Can grass slow soil erosion? ; What makes climate?. Can you capture heat? ; All about weather. How strong is air pressure? ; Magnetic Earth. How do paper clips respond to magnets?

Life science. Seed germination. Are seeds alive? ; Growing plants. Where do plants grow best? ; Thirsty plants. How do plants drink? ; Plants and water. What effect does oil have on plants? ; Growing crops for food. What's the difference between organic and genetically modified food? ; Yeast fermentation. Why does bread rise? ; Break it down. Which foods get the moldiest? ; Water, water everywhere. Does bottled water taste different than tap water? ; Color and temperature. Which warms up faster: a light-colored liquid or a dark one? ; Know your nutrients. Which snack food is greasiest? ; Digestion. How does detergent clean dirty dishes? ; Benefits of exercise. What makes your heart beat faster? ; Get moving!. Are bones brittle? ; Skin: its all over you. Which part of your arm is the most sensitive? ; Genes and heredity. What traits do you share with your family? ; Growing up. Do boys and girls grow differently? ; Forms of identification. What is similar about people's fingerprints?

Physical science. A simple reaction. Can vinegar clean a tarnished penny? ; Acids and bases. How can you tell an acid from a base? ; Crystalline growth. How do crystals form? ; Un-mixing it up. What color marker runs the most? ; Making bubbles. What makes the bubbliest soda? ; Turn up the heat. What makes a good conductor? ; Heat rises. What's so weird about Ivory soap? ; All water is not equal. Can you keep water from freezing? ; Chemistry of clean. What's the best stain remover? ; Mass matters. Which objects float in water? ; The pressure's on. Can you trap air underwater? ; A push for a push. How can I make a soda can spin? ; Light travels. Can water affect how light moves?

Technology and engineering. Gravity and motion. What makes the best cushion for a falling egg? ; Get energized! Can you launch a ball farther with a catapult? ; Makin' it stick. Which shoe is best for a big hike? ; Going with the flow. Can a battery turn a simple wire into a magnet? ; Using the power of water and wind. How do turbines create power? ; Holding on to hot and cold. Which insulator works best? ; Types of bridges. Which bridge design is strongest? ; Staying afloat. Which boat shape holds more weight?

Science fair success secrets.