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Candle powered boat Experiment

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…

Anti Gravity Water Physics magic trick

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…

Gummy Bear Osmosis Experiment

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…

Physics of spins in ice skating experiment

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….

How to make fast Epsom salt crystals on glass Experiment

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…

Self-starting siphon experiment

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…

Ice Cubes Convection Currents Experiment

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…

Bubble in a Bubble experiment

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…

Reaction Time: The Ruler Drop Test Experiment

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,…

How to make a Balloon fake Lungs Experiment

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…

Make your own Compass experiment

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…

The Water Cycle: Rain on Demand

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…

How to make a light bulb Experiment

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.  

Simple Circuit Experiment | Fun and easy

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.  

Shaving Cream Rain Clouds experiment

Observe your Shaving Cream cloud, as it gains mass and changes. As the water breaks through, drip food coloring on top of the cloud. This is such a cool experiment. Every time you get a completely different design. Kids love this experiment and you can buy shaving cream at the dollar store. So it’s not that expensive.  

Sharpie Science Experiment

I cut up a sheet into 6 ½ to 7 inch squares, size of sheet depends on what size cup you use. I use a red solo cup. Then put the sheet piece over the top of the plastic cup and secure it with the rubber band – it will look like a little drum. Choose one of the colors of sharpie pen and make dots in the center of the sheet piece. Choose another color and make more dots. Repeat. The circle of color should be about the size of a quarter. Now slowly squeeze about 20 drops of…

Quick Crystals with Epsom Salt Experiment Kids Fun Science

How do the Epsom salts crystals grow? Hot water holds more Epsom salts crystals than cold water does. That’s because heated water molecules move farther apart, making room for more of the Epsom salts crystals to dissolve. When no more of the crystals can be dissolved, you have a saturated solution. As this solution cools, the water molecules move closer together again.   Cooling the solution rapidly (in Freezer 10 minutes) encourages fast crystal growth, since there is less room for the dissolved salt in the cooler, denser solution. As the solution cools, the magnesium sulfate atoms run into each…

Trash Bag Pressure Experiment

WARNING: Never put anyones head inside the trash bag. Kids should be over 100 lbs (45kg) as the air pressure is pretty powerful. Also a good idea to have one person behind the person in the bag and another operating the vacuum on and off.   We can’t feel the weight of the atmosphere and don’t even notice it. When the pressure is lower inside the trash bag than the pressure outside the trash bag you notice this change and can feel the atmospheric pressure.   Climb inside a 55-gallon trash bag and then have someone suck out all the…

Slinky Drop Science Experiment

If i drop a Slinky you probably won’t be able to see it what happens, as it happens to fast. In Slow motion you can see the results, but maybe not understand what you saw.   You can see with the slow motion that the bottom end stayed completely still after I let go of the top and waited until the whole shiny came down until the it started to fall.   The bottom end has gravity pulling it down and tension pulling it up. Equal and opposite forces, then when the top of the slimy reaches the bottom there…

Exploding Watermelon with rubber bands

Safety: Wear Safety glasses and do not look directly over the watermelon as it is going to shoot up like a rocket!   This demonstrated show the difference between potential and kinetic energy by exploding a watermelon with rubber bands.   You will need a watermelon, 300-400 rubber bands, some Safety glasses and do this outside. Mom’s don’t think its funny doing this experiment indoors. : )   Put your melon on a table. We use a cardboard box to hold it up right. You will need two volunteers for the experiment as its little hard to pull the rubber…

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