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20 Dec
0

Iodine clock reaction Chemistry Experiment

In Atal Tinkering Labs ATL | No comment

I’m going to add the chemical solutions into 2 cups which I marked A & B. both cups I already pour 40 ml of distilled water, then in cup A I add (2) small scoops of Sodium Iodate.   This experiment comes in a kit with the details where to buy it in the description below.   Now for cup B add (1) scoop of sodium sulfite and (4) scoops of Citric acid. Then add 8 drops of Starch solution. Stir both cups very good until it all dissolves.   Now to make the magic happen. I’m going to Pour…

20 Dec
0

Two Stage Film Canister Rocket experiment

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You can do one stage Rocket or a Two Stage Rocket. It took me over 30 tries to get it to get the Two Stage Rocket to work. This was the hardest experiment I have ever done!. I still don’t think NASA will hire me even after my great success. : )   Caution: if it does not launch, wait at least thirty seconds before examining the canister. Usually the cap is not on tight enough and the carbon dioxide has leaked out instead of building up.   The water dissolves the Alka-Seltzer tablet and starts a chemical reaction, which…

20 Dec
2

DOES ICE MELT FASTER IN FRESH OR SALT WATER? Experiment

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PROCEDURE: Put your favorite food coloring in a ice cube tray with water and freeze. Fill one transparent cups up with tap water, and the other with tap water and add salt. Observe the rate of melting of each ice cube.   EXPLANATION: I love the results of this experiment as it really surprise me. When I put salt on a ice cube it melts the ice very fast and when I saw this I could not believe it. The ice cube in the salt water melts much slower then the one in the freshwater.   In the salt water…

20 Dec
0

Film Canister SUB – powered by Alka-Seltzer experiment

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PROCEDURE: 1) Drill a small hole in the lid of the film canister using a drill 2) Add just enough pennies to the canister so the it will sink. Remove one of the pennies, so the canister will now float. 3) Fill the canister with water, drop in a small in a small piece of the Alka-Seltzer tablet and then replace the lid 4) Quickly drop the canister, lid side down into the cylinder/tank that is full of water. The canister should sink to the bottom, and in a short time it will rise back up to the top. 5)…

20 Dec
0

Milk Experiment

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Is there Plastic In milk? Well, sort of. You made a substance called CASEIN. It’s from the latin word meaning “cheese.” Casein occurs when the protein in the milk meets the acid in the vinegar. The casein in milk does not mix with the acid and so it forms blobs.   The milk will boil and being to form tiny lumps (called curds) in a clear liquid (known as whey…is the Little Miss Muffet rhyme sounding a bit familiar right now?).   The curds will form a blob at the bottom of a clear liquid. The blob is actually fat,…

20 Dec
0

Drops of water on a PENNY experiment

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Surface tension give water some amazing properties, use them to see how many drops of water fit on a penny. I was able to get to 25 & 31 drops. How many can you get? If you don’t have a penny any small coin.   Experiment 1) Wash and rinse a penny in tap water. Dry it completely with a paper towel. 2) Place the penny on a flat surface. 3) Use an eyedropper or pipette to draw water and, carefully, drop individual drops of water onto the flat surface of the penny. 4) Keep track of the water drops…

20 Dec
0

Home Made Lava Lamp Experiment

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Oil and water don’t mix because of how their molecules are constructed. Water is what is known as a polar molecule. Vegetable oil, on the other hand, is a nonpolar molecule. Food coloring is a polar molecule because it dissolves in water.   Here’s the surprising part . . . the Alka-Seltzer tablet reacts with the water to make tiny bubbles of carbon dioxide. These bubbles attach themselves to the drops of colored water and cause them to float to the surface. When the bubbles pop, the color drops of water sink back to the bottom , and the whole…

20 Dec
0

Convection Currents 2 Experiments

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The tank is filled with room temperature water and both food-coloring dishes are fill with room temperature water. Place under the tank one-cup ice cold water and one with boiling hot water. Then fill your pipettes up with the food coloring. I use blue representing cold and red for hot. I continue to squeeze the pipettes multiple times so you can see the currents.   You can see the red is rising creating low pressure, as the hot air rises we can see the blue food coloring representing the cold air moving into replace the warm air that is rising….

20 Dec
0

Hand Boilers Experiment

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PROCEDURE 1) Simply wrap your hands around the hand boiler. You don’t need to squeeze tight. Then watch the gas push the liquid from the bottom to the top. The liquid mY bubble and appears to boil. But not for everyone.   EXPLANATION: The heat from your hand transfers to the liquid in the bottom of the boiler. This increase in temperature causes the pressure inside the bulb to rise. As a result the liquid moves to the top of the hand boiler bulb. After almost all of the liquid has moved from the bottom to the top of the…

20 Dec
0

Dancing Droplets of water experiments (Leidenfrost Effect)

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Why does a droplet of water not boil off immediately when we put it on a super hot pan? When the pan surface is clean and very hot the water underneath the droplet boils instantly and create a thin layer of steam under the drop. This layer of steam insulates the cold water from the hot pan and the hot pan from the cold water, the heat transfer is reduced considerably.   A tiny graphic pops up for a very short time that illustrates this leidenfrost effect, if you blink you miss it.   The underlying physics of the effect?…

20 Dec
0

Ice and Oil physics Experiments

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Both oil and ice can be slippery, but this is where the similarity ends. Oil and ice have very little in common. Actually, oil doesn’t like ice and especially melted ice.   You notice the ice cube goes down to the veggie oil layer as heavier then the baby oil. Oil is known as hydrophobic, meaning that it repels water. When you put the ice cube in the oil it begins to melt. It doesn’t mix with the oil because oil is hydrophobic. This explains why the oil and water don’t blend together, but this doesn’t explain why the water…

20 Dec
0

DENSITY – Will a can of coke float? Experiment

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The density of water will vary slightly depending on its temperature. So how do we make the coke float? With the can of Coke still submerged in the water. Since the density of the unopened can of Coke is fixed, the only thing we can change is the liquid in which to float the Coke. This liquid would need to have a specific gravity greater than the specific gravity of the can of Coke. What liquid can we use? So I will start adding containers of salt. Each container of salt is 26 oz 737g. It ended up taking 1…

20 Dec
0

VISCOSITY RACES investigating the flow of liquids experiment

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WHAT YOU NEED ketchup , mustard, molasses, corn syrup, and spaghetti sauce, honey, bbq or any other liquids.   PROCEDURE Spread out a sheet or two of newspaper to make cleanup easier.   Put a small amount of ketchup and other liquids on the plate, being careful to keep them apart. If they end up touching it will not work. You are setting up the start line of a race between the different liquids.   Before you do the next step make a prediction on which liquid is going to win the race?   Now once you have all the…

20 Dec
0

How can you pour water down a string?

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Water has some special properties, making it a very unique substance.   There are three forces at work in this experiment: gravity, adhesion, and cohesion. Gravity pulls the water down toward Earth. Adhesion attracts water to other objects. Cohesion attracts water molecules to other water molecules. In this experiment adhesion attracts the water to the string and cohesion keeps the water flowing in a steady stream.   Water molecule has two hydrogen atoms and one oxygen atom. These atoms end up having positive and negative charges, which cause them to stick to one another. This is why you see raindrops…

20 Dec
0

Gallium experiment

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Gallium is a chemical element with symbol Ga and atomic number 31. It is in group 13 of the periodic table. It will melt to a liquid at temperatures greater then 85 degree, slightly above room temperature. Which means it will melt in your hands.   Health effects of gallium Pure gallium is not a harmful substance for humans to touch. It has been handled many times only for the simple pleasure of watching it melt by the heat emitted from a human hand. However, it is known to leave a stain on hands.  

20 Dec
0

Energy Tube Experiment

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The way the Energy Tube’s works is a sensing circuit that is so sensitive that it can detect even a very small amount of electricity that travels across your skin! By placing one hand on the top and the other on the bottom of the Energy Tube and the flashing lights and sound maker let you know that you’ve completed the circuit.  

20 Dec
0

Making Butter experiment

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Heavy cream is what is called an “emulsion”. An emulsion exists when tiny droplets of one type of liquid are floating around in another type of liquid that does not like to mix with the first. In the case of heavy cream, tiny globules of fat are suspended in mostly water. By shaking the heavy cream in the cup (5 minutes), you are forcing the fat globules to slam into one another. If they hit each other with enough force, they will simply stick together, the fat collection becoming bigger and bigger with each extra globule. After enough shaking, the…

20 Dec
0

Scribble Bots Experiment

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Scribble Bots are loads of fun to make and provide lots of creative thinking opportunities. This simple version uses a small motor and pens fixed around a cup. The motor makes the arm Popsicle stick spin, which in turn makes the scribble bot move.   Give kids the challenge, such as getting the Scribble-Bot to draw a dotted line or left to explore freely going through an iterative process of designing, testing and amending their ideas. Try different propellers such as a cork, clay or straws and mix with different objects like smaller cups and cans or even a small…

20 Dec
0

Making Ice cream in a Bag experiment

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1/2 cup Heavy Whipping Cream 1/2 teaspoon vanilla (Optional) 1 tablespoon sugar 4 cups crushed ice 1/2 cup Ice Cream salt (Rock Salt) 2 quart size Zip-loc bags 1 gallon size Zip-loc freezer bag   When salt and ice mix, the freezing point of the ice is lowered and the freezing point reached depends on the amount of salt used. The more salt is added, the lower the temperature can get before the saltwater solution freezes. Remember the more salt add the colder your hands will get.  

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