Hot Science Experiments Posts

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...

How To: Understand how sodium nitrate burns

Ever wondered how science could turn out to be fun? Here's how: take a piece of paper with a mixture of sodium nitrate and sugar. When heated, sodium nitrate releases oxygen and burns sugar. Sugar alone cannot burn fast. If you want faster results, then take sodium nitrate with sulphur and some reactive metals. Add some coal to it for a faster result. This will help you burn some useless pile in quick time.

How To: Freeze water by boiling acetone

You can freeze water by boiling it. To do this you will need a Vacuum pump. Vacuum pump can be used to suck out air from a container and create vacuum in it. Take a bell jar. Now connect the vacuum pipe into it and suck out the air from it. Take a flash and add little bit of water to it. Now we want to freeze this water. Add some acetone to it. Acetone boils and evaporates very quickly. Add a few chips of marble to it. These will enable in boiling of the water. Now set this flask in the bell ...

How To: Make maganese heptoxide (permanganic acid)

This video tutorial is in the Education category which will show you how to make manganese heptoxide (permanganic acid). This procedure is extremely dangerous. Manganese heptoxide is an extremely powerful oxidizing agent. It has the ability to set fuels on fire from mere contact. Get an old dish and put a spatula full of potassium permanganate on it. Add a few drops of concentrated sulphuric acid. A green liquid is formed which is the manganese heptoxide. Now you can add any fuel like butanol...

How To: Make a bouncing translucent egg

Check out this video to see how to x-ray an egg and make it bounce. This is a cool science experiment that can be done with simple kitchen ingredients. Just get one raw egg and soak it with a cup of vinegar. Let it sit and soak for a couple days and it will feel like rubber. The egg shell will no longer be white, and it will bounce just like a ball, however... it is not a ball so it will break! This is one cool translucent bouncing egg.

How To: Bend a carrot

Check out this instructional science video that demonstrates how to bend a carrot. From the Oregon Museum of Science and Industry's teacher curriculum, "No Hassle Messy Science with a Wow", this is an activity using common vegetables. Learn how to bend a carrot by watching the step by step instructions outlined in this science tutorial video.

How To: Make a ball float in the air

This video demonstrates Bernoulli's Principle which states that, “For an ideal fluid (low speed air is a good approximation), with no work being performed on the fluid, an increase in velocity occurs simultaneously with decrease in pressure or a change in the fluid's gravitational potential energy..

How To: Make H2O and CO2

Baking soda and vinegar chemical reaction that results in H2O and CO2. More demonstration than instruction, this video does show you the grade school experiment of putting vinegar and baking soda together. Make H2O and CO2.

How To: Hunt and find fallen meteorites from a meteor shower

The Geminid meteor shower 2010 is tonight, climaxing sometime between midnight and dawn Tuesday. Usually, the Geminid meteor showers in December are awesome spectacles, one of the most intense meteor showers of the year, but this year the moon will be out until after midnight, lessening visibility. But just because you can't see the meteor shower this year, doesn't mean a meteorite or two didn't sneak into Earth's atmosphere, hurdling to the ground, waiting for you to find it. So, get your me...

How To: Make hydrochloric acid from salt

In this tutorial, we learn how to make hydrochloric acid from salt. First, you will pour some salt into a distil flask. After this, you will add in some concentrated sulfuric acid to the salt. Next, you will let these react with each other. You will start to see gasses bubble up and the excess hydrogen chloride gas come out through the top of the tube. To create a stronger reaction, you can add heat underneath the reaction. Then, test this by exposing it to ammonium chloride. If it's the righ...

How To: Make nitric acid

Watch this science video tutorial from Nurd Rage on how to make nitric acid. They show three ways to make nitric acid based on two different chemical approaches, both of which can be done using easily accessible materials.

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...

How To: Use baby powder to reveal latent fingerprints

This short video shows us how to reveal latent fingerprints on a glass surface by dusting. Anyone interested in forensic science would enjoy trying it as it shows simple steps in dusting and lifting fingerprints. It does not require any chemicals and we can do it with baby powder. The steps involved are so simple and easy to follow that even kids can try it out for fun. This gives a clear idea about fingerprints on different objects like porous, non porous and metals. Enjoy viewing and detect...

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: Make fireballs you can hold in your hand

This flame you CAN hold, without burning your skin off. Learn to make fireballs you can hold in your hand. This amazing video tutorial shows you how to do it. All you'll need for this little science experiment or fiery weapon is 100% cotton cloth, scissors, lighter fuel, cotton string, and a needle. Be careful to follow the directions in this how-to video carefully otherwise you'll really be playing with fire.