The experiments shown above are only part of them. More interesting scientific experiments are waiting for you to explore. Magic Christmas Tree Scientific Principle: The solution soaks into the paper, and the solution at the end of the paper card will first evaporate into blood-white crystals. Because the paint applied on the card is absorbed by the crystals, the magic tree becomes colorful. The experiment uses capillary phenomena to crystallize the substances in the solution. The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. Rainbow Ferris Wheel Scientific Principle: When the water contact with the rainbow candy, the pigment begins to dissolve in the water, and the density of the water increases, spreading toward the less dense areas. When the pigment from one rainbow candy meets the pigment from another rainbow candy, both colors spread toward the less dense area in the middle of the plate because of their similar densities, eventually forming a pattern similar to a rainbow Ferris wheel. The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. Production of Crystals Scientific Principle: Crystalline powder solutions are easy to precipitate crystals, and the solubility decreases as the temperature decreases. As time goes by, the water in the solution in the cup evaporates less, the dissolved crystal powder will also decrease, and the crystal powder will precipitate. Under the action of various factors, a large amount of crystal powder is precipitated, and these powders will form beautiful crystals that look like crystals. The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. Candle Pump Water Scientific Principle: When the cup is placed on a burning candle, the oxygen in the cup is exhausted, the candle goes out, and the carbon dioxide produced by the combustion dissolves in the water, causing the air pressure in the cup to drop. Therefore, the air pressure outside the cup is higher than the air pressure inside the cup, so the water outside the cup is squeezed into the cup by the atmospheric pressure. The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. Bottle Blowing Balloons Scientific Principle: Baking soda is an alkaline substance, which will react with acidic citric acid to produce a large amount of carbon dioxide gas. The more carbon dioxide accumulates, the bigger the balloon will be. The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. Colorful Fountain Scientific Principle: Baking soda and citric acid react to produce a large amount of carbon dioxide gas. Dissolve the detergent in the bottle and blow out a large amount of foam, and then a colorful fountain erupts. The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. Rainbow Rain Scientific Principle: After pouring the cooking oil mixed with pigment into the water, the density of the cooking oil is less than the water and the pigment in the cooking oil has the highest density. So, the pigment starts to sink into the water and dissolves with the water, thus forming a fantastic rainbow rain. The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. SCIENCE EXPERIMENTS KITS 110+ Science Kits 70+ Science Kits 50+ Science Kits Experiments 110+ Experiments 70+ Experiments 50+ Safe Chemicals Yes Safe Chemicals Yes Safe Chemicals Yes Including Experiment Manual Yes Including Experiment Manual Yes Including Experiment Manual Yes