![]() ![]() In Fishdom, the main objective is to manage and grow a series of virtual aquariums. Available on multiple platforms including Windows, Mac OS X and Nintendo, the game eventually made its way to iOS and Android as well. You can find more experiments like this one at, and in my books Kitchen Science Lab for Kids (Quarry Books) and Outdoor Science Lab for Kids (Quarry Books).Since its original launch back in 2008, Playrix’s Fishdom has managed to remain one of the most popular match-3 games ever released. In this experiment, the detergent you drip in the slot of the fish tail breaks the surface tension in that small area, and the fish moves forward into the soap-free water, which has stronger surface tension. When you add detergent to water, it weakens the attraction between the water molecules, breaking the surface tension. This causes a phenomenon called surface tension, which forms a sort of liquid “skin” on the water. ![]() On the surface of a liquid, they stick very tightly to their neighboring water molecules. What swims faster? Sleek sharks or round pufferfish? What happens if you add finely ground pepper to the water and repeat the experiment? Step 6: Try designing fish in different shapes. Step 5: Add fresh water to the pan to repeat the experiment. (Small hands may need a little assistance the first time.) Step 4: Tell your child to place a fish or two in the water on one end of the pan. Immediately add a drop of dish soap to the slot in the fish’s tail, then watch the fishes fly. Step 3: Let your children pour a few inches of water into the pan or cookie sheet. Step 2: Make a small rectangular slit in the back of each fish’s tail. Step 1: Have your children draw fish shapes around 2 inches long from paper, cardboard or foam. Heavy construction paper, card stock, thin cardboard, or craft foam Toddlers will have fun dripping soap into the water to make these floating fish zoom, while older kids enjoy designing colorful fish, cutting them out, and racing them across the water.Ī large rectangular pan or cookie sheet with sides Kids love to play with the forces of surface tension by making paper fish "swim" with a drop of dish soap in this simple, fun experiement. ![]()
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