Hot Science Experiments Posts — Page 31 of 34 « Science Experiments

How To: Make quarters shiver in dry ice

When a quarter in pushed into dry ice, a strange thing happens. The quarter starts to quiver. It is a normal room temperature quarter. I did nothing to the quarter. This is not a trick but really happens. The evaporating CO2 creates a small air current causing the quarters to vibrate.

How To: Create ice when boiling from a vacuum experiment

This can actually happen. It seems unnatural, but the laws of physics don't lie. Liquids require heat to boil, and if the conditions are right one liquid can be boiled in order to freeze a second. Under a vacuum, the water in an acetone/water mixture can freeze while the acetone boils. Watch the video and see for yourself.

How To: Make a compass out of a needle floating in water

Make a compass out of a needle floating in water.

How To: Make a battery with Coke, salt, and paper towel

Make a low voltage battery at home using only coke, salt, and a paper towel. Make a battery with Coke, salt, and paper towel.

How To: Make a penny operated nitric acid fountain

Watch this video to learn how to make a penny operated nitric acid fountain. Nitric acid acts upon copper to yield nitric oxide in an exothermic reaction. The expanding gas displaces water from another flask; actually bubbles in this set up. When the gas cools, the water is drawn back into the flask, dissolving the nitric oxide and forming a blue solution with the copper ions still there. Very cool science experiment with a neat reaction.

How To: Use binoculars to gaze at the stars

You can use a simple pair of binoculars to sweep the milky way or even spy on your neighbor. Learn and understand the binoculars, here and now.

How To: Dress for success in stargazing at night

For successful stargazing at night, dressing warm is the key. Do you want to shiver while enjoying the night lights, or do you want to enjoy it?

How To: Photograph the stars through your telescope

Want to be an astrophotagrapher? Here is the simple facts of taking photos of those beautiful stars using your telescope and a camera. More advanced photographers tend to use a chilled camera though, so watch and learn.

How To: Lift an ice cube with a match

Join Colin as he shows you how to lift an ice cube without touching it with your hands! Cool huh? All you need is water, salt, ice, and a match of course.

How To: Make super cool water

This is how to make super cool water--My freezer was set to -2 degrees Fahrenheit and I used Dasani water.

How To: Break chemical bonds

A difficult concept for many students to understand is the energy involved in breaking and forming bonds. A hydrate is a substance that has water bonded to it. In order to dehydrate you must add energy (endothermic) to break the bond to water. When hydrating you are forming a bond to water and will release energy (exothermic). This visual demonstration reinforces the concept.

How To: Hydrate a video lab

This experiment is intended to introduce students to hydrated compounds. These compounds have water molecules coordinated in their chemical structures. Examples CuSO4*5H2O, BaCl2*2H2O, and NaC2H3O2*3H2O.

How To: Analyze the drinking bird toy

When was the last time you saw one of these? This classic children's toy seems very simple, but the chemistry involved is very interesting. Do you know how it works?

How To: Make solid rocket fuel ignition with zinc and sulfur

Once used as solid rocket fuel because the reaction requires no oxygen, sulfur and zinc react vigorously. The reaction with zinc produces flame and a near explosion. Sparks fly and smoke billows in this dramatic chemical demonstration.

How To: Compare Coke and Diet Coke's density

Ever wonder how much sugar is in your soda? This simple experiment that anyone can do puts Coke and Diet Coke head-to-head in a density test.

How To: Make underwater fireworks with chlorine and acetylene

Chlorine gas is bubbled up along with acetylene gas through a large graduated cylinder filled with water. Where the bubbles of the two collide, an instantaneous, bright flash of light occurs.

How To: Make a Sugar Snake from Sulfuric Acid and Sugar

Sugar (a carbohydrate) is dehydrated with concentrated sulfuric acid. Since a carbohydrate was once considered just hydrated carbon, if you remove the water, carbon would be left over. The acid rips the water out of the sugar and the heat generated by this reaction causes the water to turn to steam. A black mass of carbon is produced.

How To: Boil ice water

This should probably be called the three phase of water. It all started as a students question, "Can you show us the triple point for water? Can you boil ice water?"

How To: Boil Water Using Ice

Ice in placed on a sealed FLASK and the water inside starts to boil. Great science fair experiment.

How To: Inflate a sealed balloon in a vacuum chamber

Want to learn the principles beyond Boyle's Law in a way other than just hitting the books and getting bored to death? Then a science experiment is key.

How To: Boil water at room temperature in a vacuum

This is a super cool way to learn some science while combating spring break or summer break boredom. This science video teaches you how to boil water at room temperature. Obviously this won't work in the normal conditions in which you boil water. But if you place the water in a vacuum, where the atmospheric vapor pressure is lowered, water can boil at a much lower temperature.

How To: Electroplate a quarter in copper salt water

Quarters are nice and silvery. What if they looked like a big penny? This video shows you how to electroplate metal objects, using just a battery, some copper salt, copper metal, two wires, and a quarter.

How To: Ignite magnesium with dry ice

This illustrates the reaction had between magnesium and dry ice. It ignites in a chemical reaction between the CO2 & the magnesium.

How To: Make an ice bomb

Pour water into a cast iron bomb. Then bathe the bomb in a dry ice acetone slush. This will cause the reaction. This is to illustrate that the volume of ice is greater than of an equal mass of liquid water.

How To: Detonate nitrogen triiodide

This violent reaction occurs when dried nitrogen triiodide is touched, even by something as light as a feather.

How To: Turn pennies to gold or silver

Turn pennies from copper to silver then to gold with a few household chemicals.

How To: Stop burning money

A 20$ bill is dipped into a solution of water and isopropyl alcohol. It is then ignited and the bill bursts into flames but the bill does not actually burn.....well most of it anyway.

How To: Make an explosion with sodium and chlorine

This is a science experiment illustrating the reaction between chlorine, sodium & water.

How To: Power a motor using magnets

Harness the power of magnets to create perpetural motion which powers engines for 400 years.

How To: Instantly make hot ice

Watch this amazing video tutorial to learn how to instantly make ice. This is a simple experiment turning a liquid to a solid with just a touch. Just find some sodium acetate and water to start. Boil it, then chill it, then touch it! And in an instant you have ice! If you want to be creative (or you're just bored on a Sunday afternoon) you can pour some ice sculptures to amaze children of all ages. Check out this awesome how-to video and cook up some hot ice.

How To: Extract iron from your cereal

Extract Iron particles from Your Total cereal. Talk about your recommended daily allowance of iron. You won't believe it!

How To: Build Stonehenge with physics

Wally Wallington has demonstrated that he can lift a Stonehenge-sized pillar weighing 22,000 lbs and moved a barn over 300 ft. What makes this so special is that he does it using only himself, gravity, and his incredible ingenuity.

How To: Make magic waterproof sand

We have all seen the magic sand that appears to be waterproof. Finally you can make it at home for cheap.

How To: Test yourself with the Stroop Effect

This video examines the psychological phenomenon known as the Stroop Effect and shows you a test for it.

How To: Distinguish between a raw and boiled egg

Learn three scientific methods for distinguishing between a raw egg and a hard boiled egg.

How To: Revive a drowned fly

Ever wished you were Jesus? This how-to video can bestow you with life-reviving powers. It's not a trick. See how you can revive a seemingly drowned fly with salt by watching this educational and instructional video. Let the resurrection begin.

How To: zoom into a human eye

Amazing. Truly. This is a WonderHowTo weekend digression. When we get excited, we just gots to share. Ok. Ok. Almost all of our tutorials possess a DIY sensibility and bias. Education is a complex relative of DIY and causes us taxonomical gas. But we love the category, nonetheless.