Concept Schools Stem Exposition is an event designed to encourage students to showcase the results of their stem studies and their science work. The purpose of the exposition is to apply knowledge and understanding of science, technology, engineering and math to conduct in-depth, “real-world” investigations and offer another venue for students to practice their presentation skills. The following STEM demonstrations are presented by the Concept Schools’ students at the CONSEF-2015 in Cleveland Ohio.
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CONCEPT SCHOOLS STEM DEMONSTRATIONS
MAKEY MAKEY – https://goo.gl/LmU2du
Science Academy of Chicago – Gulnur Bora-Dilara Soydan
Make a piano out of bananas, play Mario on Play Dough, let your kitty take a picture of herself.
PLASMA GLOBE – https://goo.gl/vhYvz8
Indiana Math And Science Adacemy- Edward Schneider
A fascinating way to explain the concepts of potential differences and electron orbital jumping.
FLYING NEMO – https://goo.gl/GDtsRW
Science Academy of Chicago – Meliha Aycicek
Flying Nemo is a gas balloon that flies in the air because it is filled with a gas less dense than air such as helium.
HOVERCRAFT – https://goo.gl/4DZnk6
Horizon Science Academy Cleveland High School – Robert Rogers
Vents of slow-moving, low-pressure air are ejected downward against the surface below the hovercraft to create gliding motion on a cushion or air.
CAN CRUSHER – https://goo.gl/eUKq0y
Horizon Science Academy-Southwest – Ivan Barajas
See how the phase change and the effect of unbalanced pressure crush an aluminum can.
FLYING PING PONG BALL – https://goo.gl/bGdEkJ
Horizon Science Academy-Southwest – Jasuah Vaughn
The Ping pong ball is kept within the column of lower air pressure because of the higher-pressure air surrounding it from a hair dryer.
REVERSIBLE THERMOELECTRIC GENERATOR – https://goo.gl/Z7swtJ
Horizon Science Academy – Cleveland High School – Cameron Bray
This amazing prototype shows how the temperature difference causes charge carriers (such as electrons) to move from the hot side to the cold side, thus creating an electric current.
TORNADO – https://goo.gl/i9Pah6
Horizon Science Academy-Dayton Downtown – Sebastion Hitchcock
Watch this amazing tornado simulator simply made with a tornado chamber to understand how a low internal pressure draws in high pressure air to form the vortex and eventually a tornado.
VAN DEGRAAF GENERATOR – https://goo.gl/rRcTz2
Indiana Math and Science Academy-North – Amariah Hurt
A Van de Graaff generator is an electrostatic generator which uses a moving belt to accumulate electric charge on a hollow metal globe on the top of an insulated column.
MAGLEV TRAIN – https://goo.gl/WCO5cR
Horizon Science Academy – Cleveland High School- Del-Marcus Goolsby
With maglev, a vehicle travels along a guideway using magnets to create both lift and propulsion, thereby reducing friction by a great extent and allowing very high speeds.
MAGICAL MOVEMENT – https://goo.gl/hdjJvy
Horizon Science Academy – Lorain – Leaisha Shannon
Watch how electrons flow from the TV screen through the aluminum foil to the soda cans creating dielectric current.
PARTICLE MOVEMENT IN MILK – https://goo.gl/nMUAAy
Horizon Science Academy-Columbus High School – Fartun Mahamud, Abeba Fesseha
Compare the difference between how fast particles move in hot milk and how slow the particles moved in cold milk.
FUN CRAZY BOO BUBBLES – https://goo.gl/EJClgC
Horizon Science Academy – Columbus Elementary School – Zakia Essa, Ahlam Ahmed
When combined with water, dry ice sublimates into a cold mixture of carbon dioxide and humid air, which causes condensation of water vapor in the air, forming fog.
CLOUD IN A BOTTLE – https://goo.gl/TWdiI5
Horizon Science Academy-Springfield – Kylah Spencer, Nayr Henry
Clouds are nothing more than groups of tiny water droplets! This demonstration shows how clouds are formed simply.
SMASHING THERMIT REACTION – https://goo.gl/i6rwnb
Horizon Science Academy-Cleveland High School – Alexandra Watley
Watch how the rust reacts with the aluminum foil to produce aluminum oxide, elemental iron and heat. This reaction is a highly exothermic and the reaction temperature reaches approximately 2200 °C.
BUBBLING LAVA LAMP – https://goo.gl/JqBjMJ
Horizon Science Academy – Cleveland Middle School – Alexya Foster
Learn how to make a homemade, kid-safe lava lamp using materials right in your home. With a soda bottle, oil and water, and a secret ingredient that makes the whole thing fizz, bubble, and erupt.
DISAPPEARING WATER – https://goo.gl/69J1Vz
Horizon Science Academy – Toledo – Alyssa Mays
Water-absorbing polymers absorb aqueous solutions through hydrogen bonding with water molecules. A super absorbent polymer may absorb 500 times its weight.
RED CABBAGE INDICATOR – https://goo.gl/n1VUXD
Horizon Science Academy – Columbus High School – Brady Sayre
Red cabbage juice contains a natural pH indicator that changes colors according to the acidity of the solution. This indicator is easy to make and can be used to make your own pH paper strips.
YELLOW BLUE SWITCHEROO – https://goo.gl/FBbduj
Indiana Math and Science Academy-North – Chedan Moore
Three colorless solutions are mixed to produce a yellow solution that suddenly turns blue, then fades to colorless and turns yellow again. The colors will continue to oscillate between for 10–15 minutes.
CLEANING PENNIES – https://goo.gl/5C6cM5
Indiana Math and Science Academy-South – Daryka Johnson
Mix up a concoction of vinegar and salt. Stir it around to dissolve the salt and then dump in your dirty pennies. You will be able to see the cleaning process in action.
SAFE SWIMMING WITH SODIUM – https://goo.gl/aaJ0IG
Horizon Science Academy-Cleveland High School – Fareed Abdullah
When added to the cylinder, sodium sinks in the mineral oil until it reaches the interface between the oil and water layers, reacts with water, and forms hydrogen gas and sodium hydroxide.
HAND BOILER – https://goo.gl/A6XpSP
Horizon Science Academy-Cleveland High School – Gabriel Clemmons
When the gas in the bottom bulb is heated with your hand, the increase in temperature creates an increase in air pressure. This increased pressure pushes the liquid up the tube to the top bulb.
POLYURETHANE FOAM – https://goo.gl/f3QudF
Horizon Science Academy-Southwest – Gabriel Gonzales
Simply mix two viscous liquids together and watch as the mixture expands to about 30 times its original volume.
CO2 FIRE EXTINGUISHER – https://goo.gl/I49WV7
Horizon Science Academy-Toledo – Hayden Champnoise
Use the CO2 gas to extinguish the flame of several candles. Since the air is made up of mostly nitrogen, which is a very light gas, the CO2 gas being heavier than the nitrogen, will fall out of the beaker extinguishing the flames.
DISSOLVING PAPER – https://goo.gl/rTDZ95
Horizon Science Academy-Lorain – Ivan Zepeda
Unique carboxymethyl cellulose paper is a semi-synthetic water soluble polymer that can be copied, printed or written on. Yet when dropped in water…watch it disappear!
BOUNCING BUBBLES – https://goo.gl/SC8w9F
Horizon Science Academy-Cleveland Middle School – Jaylin Jackson
The enemy of bubbles is dirt, dust, oil, grease and pollen. When your hands are protected from these things, you can bounce bubbles in your hand.
FUN DRY ICE CRYSTAL BALL BUBBLE – https://goo.gl/3ujZhy
Horizon Science Academy-Cleveland High School – Keyana Leonard
Drop a piece of dry ice in a bowl of water and see a combination of carbon dioxide and water vapor kept in a thin layer of soap film stretched across the rim.
FUN CRAZY COOL REACTION – https://goo.gl/PO2z2D
Horizon Science Academy – Cleveland High School – Liam Rafferty
Many reactions produce heat; however, endothermic reactions, reactions which consume heat, can be just as exciting.
INDICATOR SPONGE -https://goo.gl/mvwcC1
Horizon Science Academy-Cleveland High School – Rashell Anderson
The discrepant event of placing a red sponge in a red solution and having it turn blue is sure to capture your students’ attention and stimulate a lively discussion of possible explanations.
DRY ICE COLOR SHOW – https://goo.gl/uco5Cb
Horizon Science Academy – Toledo
Dry ice, acid-base indicator, ammonia, and distilled water. The indicator, ammonia and distilled water are prepared ahead of time. When I add in the dry ice, it creates carbonic acid, so the indicator begins to change/ lose color, due to the solution becoming more acidic.
ELECTROCHEMICAL CELL CONVERSION – https://goo.gl/P2myry
Indiana Math and Science Academy-South – Sterling Smith Jr.
A fruit clock is used to demonstrate the chemical reaction that occurs in a liquid between two different metals.
GENIE IN A BOTTLE – https://goo.gl/hMtZr3
Horizon Science Academy-Toledo – Terrell Green
Hydrogen peroxide and manganese dioxide create a decomposition reaction to form oxygen and water. The water droplets are shot out of the bottle by the oxygen. FUN isn’t it.
BEST WAY TO CLEAN AN OIL SPILL- https://goo.gl/AWN929
Horizon Science Academy-Toledo – Miara Carpenter
Decide which material is the best to clean up an oil spill.
ENERGY BIKE – https://goo.gl/tuf9kU
Horizon Science Academy – Columbus High School – Tyler Webb, Kevin Ansong
Energy Bike uses the RPMs off the bicycle to turn a motor and generate electricity. The DC current from the motor is converted to AC current in the power inverter.
T-BOT II ROBOTIC ARM – https://goo.gl/WAUoWR
Horizon Science Academy – Cleveland High School – Kevin Golsby
A great demonstration for illustrating hydraulic power and mechanics. See how syringes, tubes, and water work together to power the parts of this robotic arm.
WINDBAG – BERNOULLI PRINCIPLE – https://goo.gl/LBZGsr
Horizon Science Academy – Cleveland High School – Erick Osorio, Michaele Durrette
How many breaths would it take to blow up an 8 ft long bag- 10 to 50 breaths of air? Watch it to see how some scientific knowledge of air will let you to inflate this bag using only one breath!
GIANT ALCOHOL CANNON – https://goo.gl/w45P27
Horizon Science Academy – Southwest – Cristobal Calderon
This demonstration is an excellent way to show the flammability of ethanol vapors. When a flame is brought near the ignition hole of a “charged” cannon, the foam ball can be shot 50–60 feet away!
EATING NAILS FOR BREAKFAST – https://goo.gl/1cLjvL
Horizon Science Academy – Toledo – Dushaun Mothershed
The next time you’re eating a big bowl of breakfast cereal, take a closer look at the ingredients. Look closely and you might find iron… you know, the metal… the stuff used to make nails.
FERROFLUID – https://goo.gl/6jsn8v
Horizon Science Academy – Toledo – Javier Buenavista
A ferrofluid is a fluid with magnetic particles in it, and if the fluid is exposed to a magnetic field, all the magnetic particles will align with the field lines, and making the fluid much more dense.
WIMSHURST MACHINE – https://goo.gl/SrnC2b
Science Academy of Chicago – Saniye Uslu, Hatice Ucan
The Wimshurst influence machine is an electrostatic generator, a machine for generating high voltages.
INERTIA – https://goo.gl/aFahIJ
Horizon Science Academy – Cleveland Middle School – Rysheen Sharp, Miranda Crump
What happens when a tablecloth is pulled out from underneath a table setting, and everything on the table stays put? Watch and see.
AIR CANNON – https://goo.gl/P71scj
Horizon Science Academy – Columbus High School – Don Cing, Nimco Mohammed
When the air is forced through the small opening, the air near the edges of the opening experiences drag relative to the air flowing through the center. The result is that the air is moving faster out through the center and slower at the edges.
WATER BENDERS – https://goo.gl/r5CzWD
Horizon Science Academy – Lorain – Vanessa Dugas, Oleana Zepeda
When you bring the negatively charged balloon near flowing water, it is attracted to the POSITIVE force of the water. The attraction is strong enough to actually pull the water towards the balloon.
PRESSURE PULLER – https://goo.gl/BJA7VL
Indiana Math and Science Academy (IMSA) – North – Ian Jiles, Saulo Sauza
Suction or air pressure? A great way to illustrate the concept that air pressure, not suction, is forcing the cups together.
SURFACE TENSION – https://goo.gl/RfTL3C
Horizon Science Academy – Cleveland High School – Arika Hayes
Surface tension is a force—a force powerful enough to prevent water from spilling out of an open jar when it is turned upsidedown. Enjoy it.
ROTATIONAL INERTIA SET (DISC) – https://goo.gl/lGjPSh
Michigan Math and Science Academy – Ayanna Lawson
Race the ring and the disc down an inclined plane and let your students predict which one will reach the bottom first. Both ring and disk have equal mass and radius but different mass distribution.
MAGNETIC LINEAR ACCELERATOR – https://goo.gl/efc0uB
Gateway Science Academy – Fyler – Brandon Sidenstricker
Magnetic Linear Accelerator is a device that uses the power of magnetism and kinetic energy to fire projectiles at high speeds. They are used in multiple innovative inventions such as roller-coasters.
STANDING WAVE – https://goo.gl/efc0uB
Michigan Math and Science Academ- Ciara Mitchell
The appearance of waves can be shown by means of standing waves in a string. Watch how the speed of the wave in a vibrating string is affected by the stretching force and the frequency.
NEWTON’S BEADS – https://goo.gl/7jkrHT
Horizon Science Academy – Cleveland High School – Corey Rogers
A chain of beads can defy gravity, acting like water spouting from a fountain, and now physicists reveal the secret behind this odd phenomenon.
ANTI-GRAVITY MIRROR – https://goo.gl/7jkrHT
Indiana Math and Science Academy- West – Devin Bryant
A reflection of your right side can appear to be your left side. Try this activity and you’ll appear to perform many gravity-defying stunts.
CARTESIAN DIVER – https://goo.gl/Pdp9f8
Horizon Science Academy – Cleveland High School – Dewaine Billingsley
A Cartesian diver or Cartesian devil is a classic science experiment, which demonstrates the principle of buoyancy (Archimedes’ principle) and the ideal gas law.
SUPER-FLEX I-BEAM – https://goo.gl/5NGIz4
Michigan Math and Science Academy – Diamond Henderson
Lightweight and flexible, the Super-Flex I-Beam still demonstrates the characteristic properties of an I-Beam, namely that it shows how weight can be reduced while still maintaining structural strength.
ASTERISM – HYPNOTIC PENDULUM – https://goo.gl/GDSveQ
Michigan Math and Science Academy – Dominique Diamond
This mesmerizing and counter-intuitive, the pendulum swings back and forth while the three asterisms spin and twirl through the air.
BED OF NAILS – https://goo.gl/LC9orM
Horizon Science Academy – Cleveland High School – Edward Deleon
You may have seen your favorite circus performers or magicians perform the classic Bed of Nails Trick… but what is the secret? Using a smaller version of the bed and a clear balloon, you can see the science.
APPLE DROP – https://goo.gl/q3w8jP
Indiana Math and Science Academy-West – Isaiah Anderson
Newton’s 1st law of motion states that objects at rest will remain at rest and objects moving at constant velocity will remain moving at constant velocity. Watch the real life examples.
POLARIZER DEMONSTRATOR – https://goo.gl/MSBVse
Michigan Math and Science Academy – Kennedi Harris
Watch how the intensity of transmitted light through two polarizers varies with the angle of one polarizer compared to the other.
ROTATIONAL INERTIA WANDS – https://goo.gl/pr3Na5
Michigan Math and Science Academy – Lataijah Ford
The rotational inertia depends not only on the mass, but how that mass is distributed relative to the axis of rotation. Answers!
HAND GENERATOR – https://goo.gl/zoV9o7
Indiana Math and Science Academy-North – Latia King
Generate electricity for all your portable devices with human powered generators using pedal power and hand cranking.
WALKING ON BROKEN GLASS BAREFOOT – https://goo.gl/tG0TEb
Horizon Science Academy – Cleveland Middle School – Mekdes Shiferaw
This demonstration involves knowledge of even pressure and how it applies to walking on broken glass barefoot. The glass will not hurt your feet if pressure is applied evenly.
LEVITATING BOARD – https://goo.gl/CXKUuS
Michigan Math and Science Academy – Messiahtress Johnson
Slide the board along the half-pipe track and watch as the virtually frictionless movement repeatedly draws the board from one extreme to the other. The secret? You find it.
SINGING GLASSES – https://goo.gl/qVuMjH
Gateway Science Academy-Fyler – Rhiannon Hausel
The vibration on the glass molecule made the water and air molecules vibrate. The vibration of the air molecules created the sound. Isn’t it cool?
SPILLNOT – https://goo.gl/AhdX5m
Horizon Science Academy-Cleveland High School – Selena Bostick
Solve the Problem of Spilled Drinks with Physics! The SpillNot is a genius gadget that will let you carry an open beverage without spilling it.
LEAK PROOF BAG – https://goo.gl/jDrwfp
Horizon Science Academy – Springfield – Shataira Davis-Young
Fill a plastic bag with water -stab sharp objects in it and see if it is leaking.
WATER MARBLES – https://goo.gl/5hiLd5
Horizon Science Academy – Lorain – Stacey Brown
Laser pointer is directed to the water marbles in a bowl but it cannot pass through them due to refractive index differences between air and the water marble.
SOUND HOSE – https://goo.gl/ag4XCi
Horizon Science Academy – Cleveland High School – Tai’veon Lindsey
When spun in a circular motion, these tubes produce a tone. As the Sound Tubes are spun faster, the tone steps up in frequency. Discover the science behind it.
3D MIRASCOPE – https://goo.gl/euLq5C
Horizon Science Academy – Cleveland High School – Tyjuan Black
Place an object in the center bottom of two parabolic mirrors and watch as it is projected as a solid object above the opening in the top mirror. Try to touch it and your finger goes right through it.
NEWTON’S NIGHTMARE – LENZ’S LAW – https://goo.gl/Y77j9L
Horizon Science Academy – Cleveland High School – Tyree Lee Gonzales.
Drop a weight into the aluminum tube and… wait… why didn’t it come out the bottom? Give it a second, that weight just takes a while longer. That’s why we call it Newton’s Nightmare!
MARSHMALLOW MASHER – https://goo.gl/6R9ehN
Horizon Science Academy – Springfield – Tyrelle Devault
Marshmallows are a delicious, fluffy staple of summer, campouts, and barbecues. Did you know that there isn’t really much to them? Try it at home.
CANDLE CAR – https://goo.gl/Pc9KRA
Michigan Math and Science Academy – Zariah Bridges
The temperature difference between both sides of the thermogenerator produces electricity supplying the electrical motor on the front wheel
