Fun stuff to do

Amazing Science Tricks

Editor’s Note: Make sure an adult helps you with these experiments.

Using common objects around the house, you can demonstrate cool scientific laws. Here’s how:

keepingwatersep1.jpgKeeping Water Separate

Fill two identical glasses with water. Add two tablespoons of salt to the water in one glass and stir well. Add a few drops of food coloring to the water in the other glass.

Cover the glass containing the colored water with a sheet of paper, turn it upside down and place it on top of the glass containing salt water. (Be sure to do this trick over a saucer or bowl.)

Gently pull the paper out from between the glasses. The colored water and the salt water will remain separate.


How Does It Work?

Salt water is heavier than colored water, so the two stay separate as long as the boundary between them isn’t disturbed. Try turning the two glasses over, though. The heavier salt water will now be on top, so it will flow down and mix with the colored water.

walkingcanjb2.jpgA Can That Can “Walk”

Place an empty aluminum can on its side on the floor. Blow up a balloon and tie a knot in the end. Rub a tissue back and forth on the balloon.

When you put the balloon near the can, the can will start rolling toward the balloon.

How Does It Work?

When you rub the balloon with a tissue, the balloon gets a negative electric charge of several thousand volts. When you put the balloon near the can, electrostatic induction affects the molecules in the metal. The outside of the can gets a positive charge, so it is drawn toward the balloon and starts rolling in that direction.

candlethatsuckswater1.jpgA Candle That Sucks Water

Place a candle upright in the middle of a saucer. Fill the saucer with water. Light the candle. Place a glass over the candle. When the flame goes out, the water in the saucer will get sucked into the glass.

candlethatsuckswater2.jpgHow Does It Work?

When the candle is burning inside the glass, the heat makes the air expand, so some of the air escapes outside the glass. The candle goes out after it uses up all the oxygen, so the air inside the glass cools. As it cools, the pressure inside the glass drops. Some of the carbon dioxide formed by the flame dissolves in the water as well, decreasing the pressure even more. The water outside the glass on the saucer is forced into the glass by the higher aire pressure outside.

flyingtrashbag1jb2.jpgA Flying Trash Bag

Hold the mouth of a black trash bag in one hand. Use a hair dryer to blow hot air into the bag.

Seal the mouth of the bag with tape. Tie a long piece of string around the tape so you can hold it. Take the bag out into the sun. The bag will rise slowly into the air. (It’s best to do this trick in an open area on a windless day.)

flyingtrashbagjb2.jpgHow Does It Work?

Since the bag is black, it absorbs heat from the sun. That heat makes the air inside the bag expand and become lighter. When the bag and the air inside are lighter than the surrounding air, the bag starts to rise.


Bending Light Through Water

Punch a hole in a clear plastic bottle two inches from the bottom. Put your finger over the hole, fill the bottle with water and cap it to keep it from draining out.

Darken the room and cover part of a flashlight with your fingers to make the beam narrower. When you take the cap off the bottle, the water will flow out in an arc. Shine the flashlight at the stream from the side of the bottle opposite the hole. The light will bend with the arc and create a bright glow where the water hits the sink.

bendinglight2jb2.jpgHow Does It Work?

When the light in the stream strikes the boundary between the water and air, much of the light is reflected back into the stream. The light continues this internal reflection all along the arc formed by the falling water. The same principle is used to transmit light signals through flexible optical fibers.

readingthruenv1jb2.jpgReading Through an Envelope

With a black felt-tip pen, write a three-letter word in large letters on a white piece of paper. Place the paper in a brown envelope, and insert that envelope into a white envelope. The writing on the paper should now be impossible to read.

Get a piece of dark construction paper or tear out a page from a magazine that is printed on both sides. Roll up the paper into a four-inch-long tube. When you hold the tube against the envelope, you’ll be able to read the writing inside.

readingthruenv2jb2.jpgHow Does It Work?

Usually you can’t read the writing inside an envelope because of the light reflected off the envelope’s white surface. But the tube blocks that reflected light, so you see only the light coming through the envelope.

eggthrubottle1jb2.jpgEgg Into Bottle

Find a glass bottle that has a mouth slightly smaller in diameter than an egg. Pour some hot water into the bottle (be careful!), shake it vigorously and empty the water.

Peel a soft-boiled egg and place it on the mouth of the bottle. Leave it there for a while and it will get sucked inside.

eggthrubottle2jb2.jpgHow Does It Work?

The vapor from the hot water drives the air out of the bottle. Once the egg seals the top of the bottle, the air can’t get back in. As the water vapor cools, it turns back into water, causing the pressure inside the bottle to drop. The higher pressure of the outside air pushes the egg into the bottle.


Toothpick Torpedo

Dab a little shampoo on the blunt end of a wooden toothpick.

Drop the toothpick in a pan of water. The toothpick will start moving in the direction of the sharp end.

toothpicktorpedo2jb2.jpgHow Does It Work?

Shampoo contains agents that reduce the surface tension of liquids. As the shampoo on the end of the toothpick dissolves, it reduces the water’s surface tension around it, thus releasing the water’s hold on that end of the toothpick. The water around the other end of the toothpick still has surface tension, so it pulls the toothpick in that direction.

To learn more amazing science tricks, check out the book “Amazing Science Tricks” by Michio Goto

Comments about “Amazing Science Tricks”

  1. fishinglover says:

    OMG so cool :o :l

  2. chukchukbuchukchuk says:

    do u have other experiments?

  3. Buster says:

    Wonderful for little school projects or for example to use in a sunday school lesson, especially the egg getting “sucked in”.

  4. dudaydu says:

    cute!!… like it!!!…. haha…. good enough for my project!!… whew

  5. nanxie says:

    simple tricks????

  6. cess,... says:

    kinda cute! i like it…

  7. crazies says:

    oh,truly amazing!

  8. sciencetricker says:

    nice one :) :D :) :D :) :D

  9. jie says:

    amazing!very very very amazing

  10. Anonymous says:

    these are preety good

  11. gwapo says:

    its truly amazing!

  12. pirgy says:

    nice one!

  13. jay says:

    it is great
    and the best part is that all the things used is present in home easily
    i just loved it

  14. kirby says:


  15. kitty says:

    the tricks were nice and my students really loved them. instead of tissue for the can that can walk, they rubbed the balloon on their head and it worked better…. nice tricks….

  16. TROOP 431 says:

    BILL NYE ISNT DEAD!!!!!!!!!!

  17. Brett Favre blows says:

    …………… boring but will work for my project.

  18. kk says:

    i liked the tuthpick topedo

  19. zacky says:

    i can do better than this,but i appreciate this.

  20. natitonic says:

    how do we get the egg back out of the bottle :S

    • Tsunamisan says:

      In order to get the egg back out of the bottle, turn the cool bottle upside down until the egg seals the mouth. With a hair dryer, heat up the glass bottle causing the air to heat up and build up pressure inside the bottle. Continue heating it up until the egg pops out. If the egg breaks when it goes in, it may not have a seal and therefore not be able to build pressure inside it with a hairdryer.

  21. smartpuck says:

    this is the best website ever i love the tricks i hope you add more tricks onto this website thanks alot

  22. icntbperfect says:

    ow!its amazing. also my younger brother was so amazed with this tricks!

  23. ROmina says:

    wow!!! I LOVE IT

    • madik trickervzz says:


  24. bunxo says:

    the tricks are very interesting and fun… i will try it in our house. keep up the good work guyz!!!

  25. rocketboy says:

    that toothpick trick totally works

  26. nene says:

    thanks for some info…?,

  27. sirMAT says:

    I LOVE IT.. i’m a teacher and this experiments helped me a lot!..

  28. Anonymous says:

    i love it! i’m a teacher and this experiments help me a lot

  29. sarah says:

    OMG…………. tnx. a lot for the information.. amazing

  30. DianeZkie☺ says:

    …tnx a lot really help for my project!!!

  31. mac_25flame_warrior_assassin 1 einstein says:

    thanks for this trick i will perform this trick as my project in science and technology

  32. az jr says:

    tnx a lot…it is a really big help for my project..
    now i can present it to my classmate..
    it really works.. love it…

  33. az jr says:

    i love ex[piraments

  34. mizuki says:

    very amazing..
    keep it uo,,!!=]

  35. madz,cute says:

    thank you for your tricks

  36. BebeC says:

    Thanx You All
    Bill Nyee♥

  37. mack maine says:

    NIce i luv science R.I.P Bill Nye

  38. bloomygurl says:

    tnx a lot….
    it is a really big help for my project…
    now i can present it to my clazmate…..
    it really works…
    luv it…

  39. K-man says:

    The Candle That sucks water thing really works

  40. cla :0 says:

    this is a really big help for my project.. i love it!!!

  41. achee says:

    kewl…. now this is where Ill get my science trick from… haha >_<

  42. princess chua says:

    thnks for the tricks it is very good

  43. oswang says:

    thanks, great help for my project

  44. nicole says:

    thanks for the tricks!

  45. yvonne says:

    nice work good job great!!!!….

  46. tirtle says:

    i cant do the keeping water seperate! i think its impossible

  47. mega omega says:

    there really amazing! i like the tooth pick torpedo

  48. badnewton12 says:

    _;amazing!!!,i will use this for my project,

Write a comment about “Amazing Science Tricks”


Type your comment: