Simple Water Science Magic Tricks

Fun Water Tricks To Try

Use science to perform some simple water magic tricks. Get water to change colors and forms and to move in mysterious ways.

1
Anti-Gravity Water Trick

Water has an extremely high surface tension.
Water has an extremely high surface tension. Under the right conditions, it sticks to itself more strongly than gravity acts to pull it down. Tim Oram, Getty Images

Pour water into a glass. Cover the glass with a wet cloth. Flip the glass and the water won't pour out. This is a simple trick that works because of water surface tension.

Anti-Gravity Water Trick

2
Supercool Water

If you disturb water that has been supercooled, it will suddenly crystallize into ice.
If you disturb water that has been supercooled, it will suddenly crystallize into ice. Momoko Takeda, Getty Images

You can chill water below its freezing point without having it turn into ice. Then, when you are ready, pour the water or shake and watch it crystallize before your eyes!​

Supercool Water

3
Bend a Stream of Water

Charge a plastic comb with static electricity from your hair and use it to bend a stream of water.
Charge a plastic comb with static electricity from your hair and use it to bend a stream of water. Anne Helmenstine

You can cause a stream of water to bend by applying an electrical field near the water. How do you do this without electrocuting yourself? Simply run a plastic comb through your hair.​

Bending Water Trick

4
Turn Water into Wine or Blood

A pH indicator can make water appear to change into wine or blood.
A pH indicator can make water appear to change into wine or blood. Tetra Images, Getty Images

This classic water magic trick involves making a glass of "water" appear to change into blood or wine. The color change may be reversed by blowing into the red liquid through a straw.

Turn Water Into Wine or Blood

5
You Really Can Walk on Water

The trick to walking on water is to distribute your weight so you won't sink.
The trick to walking on water is to distribute your weight so you won't sink. Thomas Barwick, Getty Images

Can you walk on water? It turns out the answer is yes, if you know what to do! Ordinarily, a person sinks in water. If you change its viscosity, you can stay on the surface.

Walk on Water

6
Boil Water in a Paper Bag

No cookware? No problem! Use a paper bag to cook water over an open flame.
No cookware? No problem! Use a paper bag to cook water over an open flame. Thomas Northcut, Getty Images

You know you can boil water in a pot or a pan. How about in a paper bag? This trick involves boiling water inside of a paper bag, over an open flame!​​

Learn To Boil Water in a Paper Bag

7
Fire and Water Magic Trick

Pour water into a shallow dish, light a match in the center of the dish and cover it with a glass.
Pour water into a shallow dish, light a match in the center of the dish and cover it with a glass. The water will be drawn into the glass. Anne Helmenstine

Pour water into a plate, place a lit match in the center of the dish and cover the match with a glass. The water will be drawn into the glass, as if by magic.​

Do the Fire and Water in a Glass Trick

8
Turn Boiling Water Into Instant Snow

If the temperature is cold enough, you can make snow yourself!
If the temperature is cold enough, you can make snow yourself!. Zefram, Creative Commons License

This water science trick is as easy as throwing boiling water into the air and watching it instantly change into snow. All you need is boiling water and really cold air. This is simple if you have access to an extremely cold winter day. Otherwise, you'll want to find a deep freeze or perhaps the air around liquid nitrogen.

Change Boiling Water Into Snow

9
Cloud in a Bottle Trick

You can make your own cloud in a bottle using a bottle, some warm water, and a match.
You can make your own cloud in a bottle using a bottle, some warm water, and a match. Ian Sanderson / Getty Images

You can cause a cloud of water vapor to form inside a plastic bottle - like magic! Smoke particles serve as nuclei on which the water can condense.

Make a Cloud in a Bottle

10
Water and Pepper Magic Trick

All you need is water, pepper, and a drop of detergent to perform the pepper trick.
All you need is water, pepper, and a drop of detergent to perform the pepper trick. Anne Helmenstine

Sprinkle pepper onto a dish of water. The pepper will spread out evenly across the surface of the water. Dip your finger into the dish. Nothing happens (except your finger gets wet and coated with pepper). Dip your finger in again and watch the pepper scatter away across the water. Magic?

Try the Pepper and Water Science Trick

11
Ketchup Packet Cartesian Diver

Squeezing and releasing the bottle changes the size of the air bubble inside the ketchup packet.
Squeezing and releasing the bottle changes the size of the air bubble inside the ketchup packet. This alters the density of the packet, causing it to sink or float. Anne Helmenstine

Place a ketchup packet in a water bottle and cause the ketchup packet to rise and fall at your command. This water magic trick is called the Cartesian Diver.

Make Your Own Cartesian Diver

12
Water and Whiskey Trading Places

Can you see the liquids trading places in this image?
Can you see the liquids trading places in this image?. Anne Helmenstine

Take a shot glass of water and one of whiskey (or another colored liquid). Place a card over the water to cover it. Flip the water glass so that it is directly over the glass of whiskey. Now, slowly remove a bit of the card so the liquids can interact and watch the water and whiskey swap glasses.

Make Water and Whiskey Trade Places

13
Trick to Tie Water in Knots

You can tie water streams from a waterfall or creek, too.
You can tie water streams from a waterfall or creek, too. Sara Winter, Getty Images

Press streams of water together with your fingers and watch the water tie itself into a knot where the streams won't separate again on their own. This water magic trick illustrates the cohesiveness of water molecules and the compounds high surface tension.​

Tie Water Into Knots

14
Blue Bottle Science Trick

Beaker of Blue Liquid
Beaker of Blue Liquid. Alice Edward, Getty Images

Take a bottle of blue liquid and make it appear to turn into water. Swirl the liquid and watch it turn blue again.​

Try the Blue Bottle Trick

15
Wire through an Ice Cube

Icicles can form on a wire, but science makes certain they don't last long.
Icicles can form on a wire, but science makes certain they don't last long. JudiLen / Getty Images

Pull a wire through an ice cube without breaking the ice cube. This trick works because of a process called regelation. The wire melts the ice, but the cube refreezes behind the wire as it passes.

Pull Wire Through Ice