The scientific principles of the universe can be learned through kitchen items and common household objects which serve as teaching tools for scientific principles. The experiments demonstrate scientific principles through safe enjoyable activities which produce “aha! moments that show physics, chemistry and biology laws in action.
The Magic Leak-Proof Bag
You must fill a plastic zip-top bag with water before you seal the bag . You should insert multiple sharp pencils to puncture the bag throughout. The bag creates a water-proof barrier which uses polymers to block all pencil punctures because its long molecular strands extend across the entire surface of the bag.
Dancing Raisins
You should drop some raisins into a glass that contains clear carbonated soda. The raisins start at the bottom but they begin their “dance” upward followed by their descent back to the bottom. The carbon dioxide bubbles in the soda attach to the rough surface of the raisins acting like tiny life jackets that lift them up.
The Invisible Ink Secret
You must pour lemon juice into a bowl before you use a cotton swab to write an invisible message on white paper. The message becomes invisible following the dried surface process. The paper needs to be heated with a light bulb or hair dryer to reveal its secret message. The acidic juice undergoes oxidation through heat which causes it to develop a brown color .
Homemade Lava Lamp
You should fill a glass three-quarters full with vegetable oil before you add water until the glass reaches complete capacity. You should add several drops of food coloring. You need to add half an antacid tablet to the existing mixture. The tablet produces bubbles which move the colored water through the oil to create an enchanting lava lamp effect.
Walking Water
You need to place three jars in a straight line formation. You must fill the outside jars with blue and yellow food coloring while keeping the center jar empty. You need to make paper towels into strips which will function as bridges to connect the outer jars with the center jar. The water will move up the towels through “capillary action” to reach the middle jar where it will combine with water from the outer jars.
The Rainbow in a Glass
You need to fill four glasses of water with different amounts of sugar which will be distributed as 1 tbsp 2 tbsp 3 tbsp and 4 tbsp. Each glass should receive a different type of food coloring. The tall glass should receive different food coloring which should be layered starting with the densest color at the bottom. The colors remain separate because their different densities stop them from combining together.
Instant Ice
You should place an unopened bottle of purified water into the freezer for two hours until it reaches a temperature just below freezing point. You should take out the frozen items and pour water onto the ice cube bowl. The water freezes immediately after it touches the surface which allows you to construct an ice tower.
Milk Art
You need to fill a shallow plate with milk after which you should drop different food colors into the center of the plate. The soap should be dipped into dish soap before it touches the center of the colors. The soap causes the milk surface to break apart which leads to milk fat particles being chased away while color pigments move outward in explosion.
