Education: Page 47

Ah, adding fractions. It brings back memories of awkward elementary school yearbook photos with braces and having a crush on our super hot Brad Pitt lookalike math teacher. But we digress.

Don't be scared of fractions! Adding and subtracting fractions is not that hard once you understand how to do it.

When you see a problem involving a fraction, don't freak out. Dividing fractions is actually fairly easy once you learn the simple formula of how to do it.

There's a few reasons why you might want to purify chemicals by recrystallization, but the best one could be luminescence glow-in-the-dark dust.

Neuroscience (live!) resumes its 50 hour slicing session 8:00 am PST this morning.

Aluminum nitrate nonahydrate is a crystalline hydrate - a salt of aluminum and nitric acid - Al(NO3)3·9H2O. It's used for a variety of things such as antiperspirants, corrosion inhibitors, and petroleum refining, or… glow-in-the-dark powder. Watch this science video tutorial from Nurd Rage on how to make aluminum nitrate nonahydrate with Dr. Lithium.

Make a reusable glow stick, glow-in-the-dark-style! Imagine, you'll never have to buy one of those ChemLite's again, because you can reuse this homemade glow stick over and over again. This video tutorial will show you how to make a permanent, reusable glow stick. The materials in this experiment are simple: epoxy resin, straw, and some phosphor powder.

This is chemistry at its best! Europium is the chemical element (Eu) which was named after Europe. Dysprosium (Dy) is a rare earth element of a metallic silver luster. Watch this science video tutorial from Nurd Rage on how to make europium and dysprosium nitrate salts with Dr. Lithium.

Watch this science video tutorial from Nurd Rage on how to make a desiccator bag for drying chemicals with Dr. Lithium.

Watch this science video tutorial from Nurd Rage on how to find chemicals for science experiments with Dr. Lithium.

Watch this science video tutorial from Nurd Rage on how to make strontium nitrate. They show you how to make strontium nitrate from strontium carbonate and nitric acid.

Watch this science video tutorial from Nurd Rage on how to make sodium silicate from drain cleaner and gel beads with Dr. Lithium.

Watch this science video tutorial from Nurd Rage on how to lower electrical resistance with liquid nitrogen with Dr. Lithium.

C For Chemistry delves into the chemistry of science experiments. This chemist knows what he's talking about. These chemistry experiments are not only fun, but very educational for all of those interested in scientific chemical reactions and properties.

If you fear you're off to summer school, ease the stress of uncertainty with some simple math and know when to seek help with your grades.You Will Need* A four point grading scale* Recent grades* A pen and paper* A calculator

C For Chemistry delves into the chemistry of science experiments. This chemist knows what he's talking about. These chemistry experiments are not only fun, but very educational for all of those interested in scientific chemical reactions and properties.

Watch this science video tutorial from Nurd Rage on how to make a 100 foot glow stick with Dr. Lithium.

Yep, just what the headline says. Believe it or not, NTT DoCoMo has showed off "a set of prototype in-ear headphones that can detect and measures changes in the body's electrical state when your eyes move." Forget voice activation, eye gesture recognition is the thing of the future.

If TV cartoons don't provide enough intellectual stimulation, try these tips to improve your vocabulary and impress your friends, or just yourself.You Will Need* Books* A dictionary* A notepad* A computer with internet access

Using a combination of technology and animation techniques, two students at the Oslo School of Architecture and Design have created a visual model of RFID fields.

MIT scientist explains OLEDs by electrocuting a pickle.

No joke. This is not an Onion headline. This coming Friday, October 9th, NASA is actually planning on bombing the moon in search for water. The missile, a Centaur rocket, will blast off from Cape Canaveral, Florida, aiming at the moon's South Pole. Scientists will then analyze the debris from the explosion for traces of water ice or vapor.

C For Chemistry delves into the chemistry of science experiments. This chemist knows what he's talking about. These chemistry experiments are not only fun, but very educational for all of those interested in scientific chemical reactions and properties.

C For Chemistry delves into the chemistry of science experiments. This chemist knows what he's talking about. These chemistry experiments are not only fun, but very educational for all of those interested in scientific chemical reactions and properties.

C For Chemistry delves into the chemistry of science experiments. This chemist knows what he's talking about. These chemistry experiments are not only fun, but very educational for all of those interested in scientific chemical reactions and properties.

MAKE Magazine recently opened the Make: Science Room, a "DIY science classroom, virtual laboratory, and a place to share your projects, hacks, and laboratory tips with other amateur scientists."

Hunkin's Experiments offers over 200 science experiments freely available in comic strip form. The experiments are organized in 18 different categories, covering a wide range from simple trickery to more technical experiments. The author, Tim Hunkin, is a trained engineer turned cartoonist, and also responsible for TV series/site The Secret Life of Machines (worth a look).

This video tutorial offers advice and demonstrations on writing left handed for parents and teachers of left handed children. This comprehensive, educational left-handed writing guide covers the challenges for left-handers, writing problems, writing solutions, and helpful equipment. Check out this video teaching tutorial and learn how to make writing left-handed easier for the south paws in your life.

Amazing. Truly. This is a WonderHowTo weekend digression.

Fist full of pennies weighing you down?

Turn every darn coin into...gold!

The WonderHowTo Awards winners are in. The votes have been tallied.

How can something so common as milk turn instantly into a hard ball?

Need a way to prove your strength? Only superheroes have the power to tear metal, right?

Gather all Mad Scientists. Science doesn't have to be all about hitting the books and memorizing formulas. Sometimes it's closer to Frankenstein or Dr.Jekyll than you can imagine. It's time to turn tomatoes into glow in the dark orbs.

Some may call this a microwave prank. There won't be much left of the microwave...but what the heck...let's call it science.

Lazarus, rise from the dead!

Hotly contested video. The question remains, is the science behind the potato fire bonafide or bogus? We have yet to try it over here at WonderHowTo, and the comments thus far haven't indicated a solid verdict. Try it out and let us know! Is this a hoax? Or can you truly start a fire with a potato, salt and toothpaste?

Pyro or not, fireballs are intrinsically cool.

Yes, plasma. The fourth state of matter.