Learn how to make “elephant toothpaste” with this bubbly science project from Science Buddies
Squeeze some science: Use a little kitchen chemistry to make a fountain of"toothpaste" almost big enough for an elephant's brush!This is part of a series of fun experiments you can do at home, especially with kids.
You can find some others, such as instructions for. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today. Create a giant foaming reaction, and use science to wow your friends with this classic activity. With just a few ingredients you can make something that looks like foamyas an antiseptic used to clean cuts and scrapes, which it does by killing bacteria. But what is it? It is a liquid made from hydrogen atoms and oxygen atoms . It is available in different strengths, or concentrations. You usually find it in a 3 percent concentration . It also breaks down when exposed to light, which is why it usually comes in dark brown bottles. O). Normally this breakdown happens very slowly. But you can make that reaction happen faster! How? By adding a catalyst.that can act as a catalyst to help break down hydrogen peroxide. Catalase is present in almost all living things that are exposed to oxygen, and it helps them break down naturally occurring hydrogen peroxide. This means that if you mix yeast with hydrogen peroxide, the hydrogen peroxide will rapidly break down into water and oxygen gas. The oxygen gas forms bubbles. These bubbles would usually escape from the liquid and pop quickly. But adding a little, allowing the bubbles to get trapped and creating lots of foam. This foam looks like a giant squeeze of toothpaste—almost big enough for an elephant!Location for the activity that can tolerate spills , such as a kitchen or bathroom—or an outdoor location Put on your safety glasses to do this activity because hydrogen peroxide can irritate your eyes. Gather your materials in the location where you plan to do your activity. Place your plastic bottle on the tray or tub so that it is easy to clean up all the foam.Add a big squirt of dish soap into the bottle, and swirl gently to mix. If you want to make your foam a single color, add a few drops of food coloring directly into the hydrogen peroxide, and swirl the bottle gently to mix. If you want to give your foam stripes like some toothpastes, put the drops along the inside rim of the bottle’s mouth. Let them drip down the inside of the bottle, but do not mix. In a measuring cup mix together one tablespoon of yeast and three tablespoons of warm water. Stir for about 30 seconds. Try the activity without the dish soap.Try the activity with different-shaped containers. What happens if you use a bottle with a narrower or wider neck—or a cylindrical drinking glass with no neck?You probably saw lots of bubbles and foam in this activity. What makes the foam appear? When the hydrogen peroxide comes into contact with the yeast it starts breaking down into water and oxygen. Oxygen is a gas and therefore wants to escape the liquid. The dish soap that you added to your reaction, however, traps these gas bubbles, forming a foam. The reaction continues as long as there is some hydrogen peroxide and yeast left. Once one of them runs out it stops making new foam. If you tried the activity without dish soap, the reaction probably will still made bubbles—but not foam. has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in that two-century history.always educates and delights me, and inspires a sense of awe for our vast, beautiful universe. I hope it does that for you, too., you help ensure that our coverage is centered on meaningful research and discovery; that we have the resources to report on the decisions that threaten labs across the U.S.; and that we support both budding and working scientists at a time when the value of science itself too often goes unrecognized.There has never been a more important time for us to stand up and show why science matters. I hope you’ll support us in that mission.
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