Hot Science Experiments Posts

How To: Isolate the sugar in a can of soda

In this video from ScienceOnTheBrain we learn how to isolate the sugar in a can of soda. To find out how much sugar is in soda, pour a can into a pot and boil it until all the water is gone. You will be left with the sugar, and then you can weigh it. First weigh your pot before pouring the soda in. Now boil the soda on the stovetop. When the water evaporates, you'll be left with a syrupy sugar. A can of soda has 39 grams of sugar in it. That equates to about 7 1/2 teaspoons. Fruit juice conta...

How To: Make boric acid from borax

This is a video tutorial in the Education category where you are going to learn how to make boric acid from borax. For this experiment you will need borax (disodium tetra borate) and conc. hydrochloric acid. Take 25 ml of hydrochloric acid and dilute it with 75 ml of water. Next take 6 - 7 gms of borax and dissolve it in boiling water. Now add equal amount of hydrochloric acid. Crystals of boric acid will start forming. They are completely insoluble in cold water. After about half an hour, fi...

News: Build Your Own Oscillating Wave Machine

Transverse wave motion is the beautiful rippling effect that occurs when a moving wave causes oscillations that travel perpendicular to the direction of energy transferred. (For example, via Wikipedia: "If a transverse wave is moving in the positive x-direction, its oscillations are in up and down directions that lie in the y–z plane.")

How To: Make an alcohol lamp

In this science tutorial video, learn how to make a simple lamp from household materials. This lamp is great for power outages and other stuff like camping. All you need is some type of alcohol (isopropyl, ethonal, or even vegetable oil), a pair of scissors, a jar with a lid, and a cotton ball. Make your own alcohol lamp with this instructional video.

How To: Make iodine easily

In this video, we learn how to make iodine easily. You will need potassium iodine and sulfuric acid to make this. First, add the acid into the potassium iodine slowly. After you add in each part, swirl the beaker slowly so it gets mixed together. After you have added in all of the potassium, you will place this into a beaker filled with ice water while you add in more, because the mixture gets really hot. When finished, you will end up with a mixture that is iodine and nothing else. Fill with...

How To: Properly balance chemical equations

In this video, we learn how to properly balance chemical equations. You will see what substances are in each side of the equation. You will then need to count the atoms that are on each side of the chemical equation. Once you write down the number of atoms on each side, you will need to even them out. To do this, you need to change the coefficients within the equation. These change the total number of atoms inside of a chemical. Once you do this, you will add more to each atom present and the...

How To: Use a protractor to measure the height of any object

In this video, we learn how to use a protractor to measure the height of any object. First, attach a level to the protractor, followed by a straw at the 45 degree angle. Next, walk back form the object while looking through the straw. Keep walking back until you spot the top of the object through the straw, then measure to the base of the object. After this, you will have an isosceles triangle that has two equal sides. Use these sides to help find what the size of the object is. After this, a...

How To: Do a yeast experiment to see how much C02 it produces

In this Education video tutorial you will learn how to do a yeast experiment to see how much C02 it produces with different types of food. Yeast is a fungus and it has to eat. After it eats, it produces CO2 gas. The bubbles in bread are produced by the CO2 gas from the yeast. Take five different types of food items and measure out the same quantity for each item. In the video it is 8gms of cookie, oil, flour, salt and sugar. Take six glasses of water and mix one packet of yeast in each glass....

How To: Build a DIY electromagnet for cheap

This video shows the viewer how to make an electromagnet using common items. This is done using a broken microwave, a spool, a cordless drill, a battery and a coat hanger. The microwave transformer is dismantled and the enamel insulated wire is removed. Using the cordless drill the wire is then coiled around the spool. The iron coat hanger should then be cut into small pieces and placed in the middle of the spool. It should be secured tightly. The battery was then connected to the wired coile...

How To: Use a Peltier module to create free electricity from heat

A Peltier module allows you to turn heat into electricity. Because you can place it in areas that are normally warm anyway, the electricity created is "free" in a sense, though it does work best when one side of the module is cold and the other is hot. In other words, all you'll need for this project is the Peltier module and a cooler surface such as soil or water, and a warm area such as a well lit window or warm pan.

How To: There's Metal Hiding in Your Pepto-Bismol and Here's How You Extract It

Got an upset stomach or a little heartburn? America's favorite pink pill will cure it right up. But did you know that there's actually metal hiding in those chewable Pepto-Bismol tablets? Yes, metal. Technically, it's a poor metal, but metal's metal, right? Well, we do tend to eat a lot of iron in our diets, because it carries oxygen throughout our bodies, so consuming metallic minerals isn't anything abnormal. But you'd never think that Pepto-Bismol is actually made up of metal.

News: This DIY Passion Fruit Battery Can Power Lasers!

It's been proven over and over that you can make batteries out of fruits and vegetables such as lemons, potatoes, and even apples. Turns out, passion fruit is also acidic enough to power a battery, but Maui Makers member Ryan K decided to take it a step further by adding a laser. Passion fruit, or Lilikoi as it's called in Hawaii, is usually over-abundant in Maui, so Ryan decided to put it to good use. Using anodized bolts, copper pipe, wire, switches, and some LEDs, he built a battery that c...

News: Dissecting a Human Head Through Anatomical Illustrations

Human anatomy is something every physician must undergo as a medical student. Some move on to become great doctors, some move on to become great artists, helping to better educate students and improve upon many illustrated representations of the human body since the days of medieval medicine. But thankfully, you don't have to be in the medical profession to enjoy the beautiful art of the human body created for teaching purposes.

News: Fluorescent Puppies You Can Turn On and Off

Always wanted a fluorescent dog but didn’t want to commit? Well, here’s your solution. Researchers at Seoul National University developed fluorescent puppies that only glow when you want them to. Just inject the special pups with doxycycline and they’ll glow like a black light poster for a few weeks. Then, they return to dull, furry normal.