Imprecise Science Search Results

How To: Make a simple rocket with film canisters

Try out this science experiment... watch this video tutorial to learn how to make a simple rocket with film canisters. This is purely educational, and demonstrates the reaction of an Alka-Seltzer tablet, toilet paper, and water. If you don't have Alka-Seltzer, you can substitute it with baking soda, then substitute the water with vinegar.

How To: Create a plankton science model

In this tutorial, we learn how to create a plankton science model. You will first need a clear bucket with water, modeling clay, toothpicks, sponge, beads, buttons, pipe cleaners, Styrofoam peanuts, and more. To make the plankton, you will first take the peanut and stick a toothpick into it. Then, add a paperclip on top of that to give it some weight. Drop it into the water and see if it floats or sinks. Add some more weight to it to see how much weight it takes to sink it to the bottom. Have...

How To: Do a science trick demonstrating surface tension with pepper, soap, and water

Surface tension is one of the coolest things about water. Without it, there would be no waterskiing, and that would be a sad world. This video will show you how to do a cool science magic trick with pepper, soap, and water that demonstrates surface tension. All you do is scatter the pepper on the surface of the water, then dab your finger with dishsoap and touch it to the water. You finger will appear to repel the pepper as the soap disturbs the surface tension of the water. Cool little trick...

How To: Make copper sulfate and zinc batteries

Watch this science video tutorial from Nurd Rage on how to make copper sulfate and zinc batteries. They show you how to make the classic copper sulfate and zinc battery using the incredibly easy "gravity" battery design approach. Great for science fairs and similar projects this battery can be used to explore many basic concepts in batteries.

How To: Dissect a human to see the superficial neck

Get out your scalpel and remove the skin of your cadaver, because you're going to learn how to dissect a human to see the superficial neck. This anatomy video tutorial will teach you how to cut away the platysma muscle, which is a muscle of facial expression. You can't beat science, and you can't beat looking at the superficial neck of a human corpse.

How To: Make magic rainbow milk

Though your kids will think this "rainbow" milk looks really cool and will instantly want to consume it, doing so may not be the best idea. That's because in order to create this rainbow milk you'll need to mix in color additives and very non-edible soap.

How To: Build an electromagnet

This video demonstrates the relationship between electricity and magnetism and shows how to construct an electromagnet using a 4 inch iron nail, 5 meters of copper wire and a 1.5 volt AA battery. Electromagnetism was discovered by the Danish scientist Oersted. Electromagnetism is the science behind electric motors, solenoids, speakers and electromagnets.

How To: Make a sundial

This video looks at some of the issues around constructing sundials. Included are step by step instructions for building a horizontal sundial and instructions for setting it up. This activity supports both science and math curriculums. A good project providing an opportunity to use protractors and rulers. The sundial example in this video is designed for use at latitudes close to 45 degrees north.

How To: Use gentian violet to reveal latent fingerprints

This video would be very interesting for those seeking careers or those interested in the field of criminal science. This field involves forensic science. The video explains to us how to use gentian violet in order reveal latent fingerprints. He explains to us the experiment he is about to do before he does it. Genetian violet is a type of dye solution that can be very helpful in retrieving fingerprints. Safety goggles and gloves should be worn at all times.

How To: Implode a soda can with heat

Check out this science experiment video to see how to implode a soda can with heat. That's right, implosion. Take an empty aluminum soda pop can and put a spoon of water into it. Heat it over the stovetop for about thirty seconds, then invert the can and dip it into a bowl of water. This is as simple as science gets, and easy to do, just be safe around the stove flame and don't burn yourself.

How To: Build high production spirals

Check out this instructional science video that demonstrates how to make high production spirals. Since for many people it is much easier to buy 1/12 of an inch 316 L Stainless Steel welding wire or a 1/8 of an inch wire (instead of plates or tubes), then for those of you who do not have the practical skills this video might just be a little hint and a aid on how to proceed. There are so many details needed involved in order to make it simple and replicable. Learn how to build production spir...

How To: Make a soda pop can implode

Check out this instructional science video to learn how to make a soda pop can implode. You will need a torch, a Bunsen burner, or stove; a soda pop can with a tiny amount of water in it; tongs, or something to hold the can; and a bowl of ice water. This is a cool science experiment to perform, but adult supervision recommended. Follow the tutorial video's simple instructions and watch the soda pop can implode.

How To: Make a compass floating in a glass of water

Check out this instructional science video to learn how to make a compass floating in glass of water. You will need a sewing needle, a standard refrigerator magnet, and a piece of toilet paper. Nestle the needle into the toilet paper and place it into a glass of water. The toilet paper will absorb the water and inevitably sink, but the needle will become an instant compass pointing north and south without fail. Have fun with this science experiment with the kids by playing with the magnet.

How To: Manipulate your voice with sulfur hexafluoride gas

Lance Lund, a professor at Anoka-Ramsey Community College, was asked to prepare a promotional science video for the college back in 1995 that was to air on a local cable access channel. All went well until he inhaled some sulfur hexafluoride (SF6). The video never aired, but many more of you from around the world will be able to enjoy this right here.

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: Customize the Back & Forward Skip Button Lengths in Apple Podcasts from 10 to 60 Seconds

Apple's stock Podcasts app in iOS remains my go-to for all of my podcast-listening needs, but skipping around during an episode can be frustrating. Scrubbing audio along the timeline is often an imprecise maneuver, which is why the skip buttons can be so useful and efficient. Without customizing skip lengths, however, you may find yourself tapping far more than you need to.

How To: Stand an egg on end during the spring equinox

Check out this highly educational science video tutorial on how to stand an egg on end during the spring equinox, but wait... does it have anything to do with the spring equinox... no, it doesn't, standing an egg upright has nothing to do with the first day of spring. A lot of eggs have little bumps on the bottom of the egg, so the bumps actually help support the chicken egg when standing upright.

How To: Make a simple electromagnet

Playing with magnets can be a fun activity for many young children out there willing to learn about science. This tutorial gives those science hungry kids a cool little trick on how they can make their own electromagnet from scratch. The supplies are easy to get and will take only a few minutes to prepare. So sit back and find out what it takes. Enjoy!

How To: Make an edible plant cell model for biology class

Science fairs are some of the most creative moments during the elementary school period. Not only are you able to research a topic of interest, but you also have try to find various ways in which to showyour scientific results. In this case, you'll find out how to make an edible plant cell model for an easy science fair project of for biology class. It's easy to do and will surely attract the attention of your teacher and others. Enjoy!