Viscid Substances Search Results

How To: Solve word problems involving exponential growth/decay

The first problem that is show is exponential decay. First you will need to create a table with hours and substance left. The next step is to find the trend by noting that we are left with a certain percentage of the substance. One you have the trend you will use this to calculate the amount of substance left in said hours, in this case 6 hours. The following example shows you how to solve exponential growth. It is essentially the same except for the fact that you will be increasing, so inste...

How To: Make slimy Silly Putty with glue and Borax

Here is the perfect recipe for that childhood fun gooey substance. It seems everyone tries but get this wrong? I have found the perfect proportions. So no more glue balls. This isn't slime. This video is my recipe for making a silly putt... More»y like substance. I am a chemist and it works perfectly. It is a polyvinyl acetate polymer. Metric measurements 25mL glue, 20mL water, 15mL Borax Solution No matter how many times I do this, I never get bored making it. It acts like snot but it isn't ...

How To: Burn mercury thiocyanide, "the rock from Mars"

Students show how mercury thiocyanide or "rock from mars" burns. First and foremost, make sure you are outdoors and with a considerably large space. Spread a non-flammable material over the space you decide to work on and place a small fragment of the mercury thiocyanide in the center. Keeping a respectable distance from the "rock" touch the "rock" with a lighted match. Watch as a substance oozes out from the rock. Make sure that the process has ended or that no movement can be seen from the ...

How To: Make a gooey quicksand-like non-Newtonian fluid with cornstarch

Oobleck, a word coined from the Dr. Seuss book "Bartholomew and the Oobleck," has contemporarily come to define the substance created from mixing cornstarch and water. This mixture is notable for its dilatant properties, and as an inexpensive and non-toxic Newtonian fluid. While seemingly liquid, under pressure, the substance reacts as a solid. Gentle treatment, however, will allow the material to remain in its fluid state. More simply put, this sh*t is crazy.

How To: Trim your dog's toenails safely

When it comes to trimming your dog’s toenails, there are several instruments you can use. In this video, Patrice introduces you to the toenail clipper and the toenail grinder. To begin trimming your dog’s nails, pull back the hair surrounding the toenails so you can get a better look at the nails. Then separate the toes so you can work with one toe at a time. Using a toenail clipper, cut the nail enough to where you can see the jelly-like substance. You will know when you haven’t cut en...

How To: Create napalm

This video illustrates how to make napalm. You will need a petri dish, gasoline, and styrofoam to create napalm. Combining the styrofoam and gasoline in a petri dish you allow the styrofoam to dissolve and become a semi-solid substance. It will have the consistency of chewing gum and it will be highly flammable. This substance will be sticky and if lit it should be lit outside and at a distance from anyone as it will produce a gas that is toxic.

How To: Identify and treat snow mold

snow mold occurs in round patches of grass in the lawn. The patches contain a fussy substance (the mold), that appears in grey or pink; the most dangerous of the two. Mold is formed whenever a lot of snow is left on the lawn for a long period of time, this causes the mold to grow underneath. Late fertilization with a lot of nitrogen promotes mold. Dead grass or thatch can cause mold to develop. Gently raking allows airflow into the grass and promotes new grass growth. The putting down of gras...

How To: Understand & calculate density

In this episode of Science Theater Dr. Carlson helps you understand the concept behind Density and how it relates to Mass and volume and how to calculate the Density of a substance if its Mass and Volume are known. The Density of various metals is demonstrated using aluminum, tin, zinc, lead and copper of the same mass but different sizes. The easiest way to measure the density of a substance is also mentioned. Next, Dr. Carlson measures his own density using a scale and a bathtub.

How To: Make a 3D model of a jelly-like substance in RealFlow

In this tutorial, you'll learn how to create Jello-like title text and logos using RealFlow. Whether you're new to RealFlow's popular fluids and body modeling software or are just looking to get better acquainted with the application its various features and functions, you're sure to enjoy this free video software tutorial. For more information, and to get started using this trick in your own RealFlow projects, watch this 3D modeler's guide.

How To: Determine the empirical and molecular formulas for a compound in chemistry

In this free video science lesson from Internet pedagogical superstar Salman Khan, you'll learn how to determine the empircal and molecular formulas of a substance given percent composition. Whether you need help studying for that next big test or could just use a hand finishing your homework, you're sure to be well served by this video lesson. For more information, including detailed, step-by-step instructions, take a look.

How To: Cook stuffed veal breast

Stuff veal to add moisture and substance to your meal. Veal should be cooked more like poultry than beef. Make your favorite stuffing and allow it to cool before addressing the veal. Be careful not to overstuff the veal breast. Finally, tie it shut with cooking twine, season and cook.

How To: Make (non-Newtonian) Oobleck from corn starch & water

Mr. O shows his audience in this video how to make oobleck, a slime-like substance which has a variety of unique properties. For this project, you will need a mixing bowl, food coloring, corn starch, a measuring cup, and water. First, color the water with food coloring to a color which is much darker than the color you would like. You will need the correct ratio of water to cornstarch, in a 1 to 2 ratio. Add some water to the bowl and add the cornstarch, then add the rest of the water. Finall...

How To: Fill and touch-up a gouge on a table edge

To fill a gouge on a table edge you start by using auto body filler. Auto body filler is a two part substance. The catalyst is red and the resin is grey. When they are properly mixed it will be a uniform pink color. To keep the substance from spilling out of the damaged area put a piece of tape on the side of the table. Take some filler and force it down into the cavity formed by the tape along the side of the table. Let it dry for 3-4 minutes. Take the tape off and use a knife to trim off th...

How To: Fix the Perfect Ring scratches on your laser burned XBox 360 discs

If you've accidentally jiggled your Xbox while a game was playing (or maybe your pet did), you might experience the Perfect ring scratches - or a laser burn. Ignore all the advice which tells you to use toothpaste, an eraser or even crazier substances. All you need to do is go down to your local video game store or rental store (like GameStop, EB Games or a similar place) and ask for a disk resurfacing. It's usually either cheap or free, and definitely worth it!

How To: Perform a superheated steam science experiment

This is a cool experiment that shows what happens when we superheat steam. Wath as we move beyond a gas to something else! Steve Spangler is the science man and he'll turn you on to something cool. We usually think of water as a substance used to put out fires... but what happens when water turns to steam and that steam gets superheated? Watch in amazement as the steam created in the experiment is used to create - not extinguish - fire!

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: Solve word problems involving mixtures

From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to unpack and solve word problems involving a mixture of two or more substances.

How To: Make blue phosphorescent glow-in-the-dark powder

Making a blue glowing substance is easy, as long as you already know the secret to making green luminescent phosphorescent glow powder. By watching the green glow-in-the-dark procedure, you know that you will need strontium nitrate, aluminum nitrate, europium and dysprosium nitrates, and nitric acid. That will make a green glow, but if you want to make a blue version, it's a relatively easy fix...

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