10 Awesome Science Experiments your Teachers Forgot to Show You!

If you are a science teacher who wants to find cool things to show the students, these are some great ideas.  If you crave more inspiration, there’s a website called Science Toys that’s a great resource for demonstrating scientific principles using everyday household products.

1. Lenz’s Law in action. Watch what happens when you drop a magnet down an aluminum tube. It’s oddly relaxing to watch. Then, if you liked that, it’s even slightly slower through a copper tube.

2. This mesmerizing trick only requires milk, food coloring, and dish soap.

3. Supersaturation. This was one of the few things I found intriguing in my very boring, general chemistry class.

4. Rubin’s Tube. A real life fire visualizer that reacts to music.

5. Centrifugal force. As long as it’s in a fast enough circular motion, the water and the cup don’t fall down on the experimenter’s head.  Maybe someone who spins poi should experiment with these. Then maybe one can mix water-poi with fire-poi…

6. Cymatics: Visual Vibrations. This just requires a speaker, an amplifier, a signal generator (computer) and some sand.

7. Homopolar motor demonstrates the Lorentz force.

8. Crush cans using the power of air pressure. Vigorously boil a small amount of water in a can and upturn it in a bucket of cold water.

9. Non-Newtonian fluid.  Simply mix cornstarch and water.  The key is to add just enough water so that the cornstarch and water mix will flow very, very slowly.  It will feel very trippy when you try to touch it or play with it.

10. Create a cloud in a bottle.  All you need is a bicycle pump, water, rubbing alcohol and a bottle. I love this one because it ties in with meteorology and requires a bicycling pump.

 

Was that cool or what?!  Which one of these were your favorite? Do you remember any science demonstrations that really made an impression on you when you were in class? Please share your thoughts!

  • Hovo

    Why couldn’t Mr. Akopian show us all this in our AP Physics classes?  All he did was boring lectures and notes.  The coolest thing I ever did in his class was play with Mercury.  Very Safe!

    • http://www.antranik.org/ Antranik

      Hahahah the mercury!  I remember that.

  • Andrew Levenson

    Demonstrate Bernoulli’s Principle by aiming a hair dryer so it blows straight up, and balancing a ping pong ball on the air stream. You can tilt the stream in any direction to a certain extent, and due to the pressure differential, the ball will remain in the stream instead of falling down.

  • Andrew Levenson

    Demonstrate Bernoulli’s Principle by aiming a hair dryer so it blows straight up, and balancing a ping pong ball on the air stream. You can tilt the stream in any direction to a certain extent, and due to the pressure differential, the ball will remain in the stream instead of falling down.

    • http://www.antranik.org/ Antranik

      That’s a great one! I actually remember being shown that in school and I remember wanting to try it at home.

  • JimFromAccounting

    Haha, I won 1st place in my middle school’s science fair with the Lorentz force demo.

    • LOL i am a Stegosaurus

      hmm what grade r ya? and btw how big is that science fair?

  • u r mr gay

    Oh god, I love these.

    -J

  • thamu

    cloud in a bottle is amazing !!!!!!!!!!!!!!!!!!!!!!!!!

  • Voldemort is a babe

    these are sick!!

  • imm go eat a bagel

    omg those are awesome! im so trying the cloud in a bottle and milk thing! why is the pic to the left of a guy!? Sexist much?!

  • Cloe

    Hey why?