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19 Dec
0

Microwave LIGHT BULB experiment

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Materials Light bulb Glass Microwave   Safety Precautions: Perform this experiment with only adult supervision. Do not perform this experiment for longer then 15 seconds. Wear safety goggles.   Place a light bulb in a glass filled halfway with water. Place in the center of the microwave and turn on for no more than 15 seconds. Observer   Explanation: The light bulb will light up when the microwave is turned on! This is possible because the tungsten filament within the light bulb is able to absorb the microwave radiation. AS this filament absorbs energy, it becomes so hot that is…

19 Dec
0

GELATIN STALAGMITES experiment

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Procedure Pour a small pile of unflavored gelatin on the tabletop or plate. Rub a balloon in your hair and bring it near the gelatin.   Explanation The particles of gelatin will arrange themselves in columns resembling stalagmites as the charged balloon is brought near. The gelatin particles are normally neutral, but become temporarily polar when brought near the balloon. The negatively charged balloon repels the negative charges and brings the positive charges closer to the surface of the gelatin particles. The polarity is transmitted to the neighboring particles, until you eventually have a long chain of molecules held together…

19 Dec
0

FUN-FLY-STICK – Static Electricity experiment

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The magic force of the FUN FLY STICK is static electricity. It is the same static electricity that you generate when you rub a balloon on your hair or walk across the carpet. IF you touch someone conductive and get shocked, you know that you had static charge.   The FUN FLY STICK is a portable static electricity generator simply by running a rubber belt over two rollers. The semi-conductive cardboard coupled with the much smaller electrical charge generated by the Fun Fly Stick, eliminates risk of being zapped.   IF you love science like I do, and want to…

19 Dec
0

Opposites Attract Static Electricity Experiment

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PROCEDURE 1) Fill plastic tube with small amount of styrofoam balls. 2) Close end of tube 3) Rub the outside of the plastic tube with the styrofoam balls inside with wool, your hair or something to charge it up for about 15 to 30 seconds.   You should start to see the styrofoam balls jump, dance and then stick to the walls of the plastic tube.   EXPLANATION By rubbing the tube we transferring electrons from the wool cloth to the surface of the plastic tube. The electrons now on the surface of the tube are attracted to the protons…

19 Dec
0

Copper quarters Experiment

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Copper quarters – Using some long pliers, take a quarter and insert it into the flame. You’ll want to rotate it every few seconds to heat it evenly. After about 20 seconds it should be glowing red, to avoid overheating it, you’ll want to remove it at this point.   Immediately drop the quarter into a 100 ml (3.3 oz) beaker filled with roughly 60 ml (2 oz) of Heet. It will begin to boil vigorously and then slow down to almost nothing, only to start boiling again in one short burst.   Watching the process again. Watch how quickly…

19 Dec
0

One minute Ice cold beer

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An important part of chilling beer fast is to maximize how much of the can/bottle’s surface area is in contact with the chilling agent, whether it’s ice, water, or cold air.   Salt-water lets you chill a warm beer really fast — much faster than a freezer. Pour cold water, ice, and salt into the cooler to create a salt-water-ice bath.   The ice will cool the water down and the salt will allow the water temperature to drop below 0°C. The beer will then be fully submersed in sub-zero water, maximizing the surface area in contact.  

19 Dec
0

Candle powered boat Experiment

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You get potential energy that is transformed into kinetic energy and cold air is heated.   The candle heats up air and makes the hot air rise. The rising air pulls in air from the front of the can. This is because the air that has risen has to be replaced with air. The heated air goes out the end of the sail and pushes the can.   The hot air wants to move up because it’s expanding/getting less dense, but when hitting the flap it changes direction and pushes a force on the boat.   Top speed depends on…

19 Dec
0

Anti Gravity Water Physics magic trick

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When you turn over the jar and the index card stays without water pouring out, that is caused by Atmospheric pressure. Atmospheric pressure is the force that holds the index card in place. The card stays on the upside-down jar because the pressure of the air molecules pushing up on the card is greater than the weight of the water pushing down.   When you remove the index card the water stays in the jar because of surface tension. The molecules of water are joined together to form a thin membrane between each tiny opening in the screen.   When…

19 Dec
0

Gummy Bear Osmosis Experiment

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OSMOSIS TERMS Osmosis occurs when liquids flows through a semipermeable membrane allow some things to pass through them — most frequently liquids — but not others.   GUMMY BEAR COMPOSITION Gummy bears are made from gelatin and water, starting as a liquid and cooling into a chewy, gummy solution. This is a result of the presence of gelatins, whose molecules are chain-like and create a solid matrix.   GUMMY BEAR EXPERIMENT: TAP WATER Place the gummy bears in cups of water and set aside. Then discuss hypotheses — what do you think will happen to the gummy bears? The next…

19 Dec
0

Physics of spins in ice skating experiment

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When a figure skater glides into a graceful spin on the ice, she rotates slowly at first, then faster as she tucks in her arms. Often, the skater spins so fast that you might wonder why she doesn’t fall down. This impressive skating technique relies on a physics phenomenon called the conservation of angular momentum. When the skater starts to spin, her arms have their own momentum. As she draws them near to her torso, her body gains some of that momentum, causing her to speed up. You can see angular momentum at work by spinning with a lazy susan….

19 Dec
0

How to make fast Epsom salt crystals on glass Experiment

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When growing Epsom salt crystals, the first step involves dissolving salt in hot water. Hot water is important because the temperature of the water has a direct effect on the amount of salt that can be dissolved in it. Heat increases the amount of space available between molecules and, as a result, hot water will hold more salt than cold water.   Dissolving is not a chemical change either: water is simply pulling the salt atoms apart and not changing the actual salt molecules themselves.   When no more salt can dissolve in water, the solution is considered saturated because…

19 Dec
0

Self-starting siphon experiment

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I stuck on the end of the straw and the liquid will flow upward down the tube under the pull of gravity. Depending what the liquid is it could taste really bad.   When you release your finger the water will rise up and go over the edge and continue to go until the water level is at the same level as the end of the straw inside the glass.   By moving the tube up and down and tapping the other end with your finger it creates pressure difference that causes the liquid to flow from high pressure to…

19 Dec
19

Ice Cubes Convection Currents Experiment

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Convection Currents -The container is filled with room temperature water that I left overnight in the container. I use a blue colored ice cube to resemble cold air and Red hot water to how resemble warm air. Genius! You can see the cold blue ice cube immediately starts sinking to the bottom.   The red warm water rises throws the top and the cold blue ice cubes sinks. Same goes for air!   Convection currents happen within the Earth’s magma, water and air. It can happen in anything that is not solid and has parts that are cooler or warmer…

19 Dec
0

Bubble in a Bubble experiment

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Mixing your bubble solution with Distilled water makes better bubbles. You want a flat and clean surface with no bumps. Then take a small handful of the bubble solution and spread it on the flat surface.   Now dip your pipette into the bubble solution and blow your first bubble. When blowing your second or third bubble always dip the pipette into the solution as far as your can. This will help from posing the first bubble. Let us know in the comments how many bubbles in a bubble you were able to get.   You will notice when blowing…

19 Dec
1

Reaction Time: The Ruler Drop Test Experiment

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How fast can you react? In this activity, volunteers participate in a simple ruler drop experiment and learn about the body’s response behind it. We are testing young versus old.   The neural pathway involved in a reaction time experiment involves a series of neural processes. This experiment does not test a simple reflex. Rather, this activity is designed to measure the response time to something that you see.   Catching a dropped ruler begins with the eye watching the ruler in anticipation of it falling. After the ruler is dropped, the eye sends a message to the visual cortex,…

19 Dec
0

How to make a Balloon fake Lungs Experiment

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This is how are lungs operate. Inside our bodies, at the base of our lungs there is a membrane called the diaphragm.   When you breathe, your diaphragm contracts and expands. When you inhale, your diaphragm contracts to make room for your lungs, which fill up with air the way balloons do when you blow them up. This demonstrates this action when you pull down on its balloon bottom.   When you exhale, your diaphragm expands, forcing the air out of your lungs. You can see this action when I push up on its latex bottom.   The muscles of…

19 Dec
0

Make your own Compass experiment

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The metallic core of the earth helps create the earth’s magnetic field with north and south poles. The compass reacts with the earth’s poles to point in the direction of the earth’s North Pole.   Rubbing the magnet against the needle in one direction caused the iron atoms in the object to line up and create a weak magnetic field, which made the needle behave like a magnet.   You had to rub in one direction to get the atoms to all line up in the same manner. If you had rubbed back and forth with the magnet, the atoms…

19 Dec
0

The Water Cycle: Rain on Demand

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This experiment demonstrates the heat of the sun turning the water in the tub/bowl to vapor (evaporation). The vapor turning back to water droplets on the plastic wrap (condensation), drops getting too heavy and falling back down (precipitation) to the water in the glass which represents land (collection).   The evaporation and condensation are the key terms that help water purifying. While these processes occurs during the water cycle, it can also be used to purify water for drinking or industry use. Water is always moving. The movement is driven by the energy of the sun and the force of…

19 Dec
0

How to make a light bulb Experiment

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Your not going to be able to read a book with this light, but pretty awesome just making light. The way it works is the electrons from the battery flow through the alligator clips and pencil lead, which is actually graphite, creating a closed circuit. Just like Simple circuits we did a while back. The graphite or filament becomes so hot it glows and fills the Mason jar with smoke.  

19 Dec
0

Simple Circuit Experiment | Fun and easy

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The aluminum foil is the conductive path that the battery energy follows to light up the bulb.   There are a couple of other ideas that you could do to change up the project a little bit and see what happens.   You could try a different size battery, stack a couple of batteries together or have the aluminum foil make contact with different things.Try to make more complex circuits. See how many light bulbs will light up with one 9 volt battery.  

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