What you need:

• Two bottles

• Tube to connect these bottles

• Water

Instructions:

When you whirl the liquid in the top bottle, it creates a vortex as it drains into the bottom bottle. That's because as the water flows down, air must flow up, creating a spiraling tornado.

You can even add glitter, food dye, or lamp oil to the bottle to make the tornado even cooler.

What you need:

• Glass plate or bowl

• or a picture frame

• Dry erase marker

• Water

Instructions:

1. Draw a simple picture on the glass. A stick figure is a good one to start with

2. Pour water onto the plate or into the bowl slowly to lift up the drawing

3. Swirl the water around to make the picture dance and move

4. The marker leaves behind a mixture of pigments and a type of alcohol mixed together. The alcohol dissolves and the pigments are left behind as a solid. Glass is so smooth that the solid slides right off when it gets wet.

What you need:

• 10 mL dish soap

• 100 mL cold water

• 400 mL white vinegar

• Food Colouring

• Baking soda slurry (fill a cup half way with baking soda and the rest water

• Empty 2L bottle

NOTE: This should be done outside due to the mess.

1. Combine the vinegar, water, dish soap and 2 drops of food coloring into the empty soda bottle.

2. Use a spoon to mix the baking soda slurry until it is all a liquid.

3. Eruption time! … Pour the baking soda slurry into the soda bottle quickly and step back!

A chemical reaction between vinegar and baking soda creates carbon dioxide gas. Carbon dioxide is the same type of gas used to make the carbonation in sodas. What happens if you shake up a soda? The gas gets very excited and tries to spread out. There is not enough room in the bottle for the gas to spread out so it leaves through the opening very quickly, causing an eruption.

What you need:

• 1/4 cup epsom salt

• ¼ cup hot water

• Food coloring

• A cup

• A plate

• Optional: a small jar

Instructions:

• In the cup, measure out ¼ cup Epsom salt and ¼ hot water from the sink. Stir them together.

• If all the salt doesn’t dissolve, heat the cut in the microwave for 20-30 seconds.

• When all the salt is dissolved, put a drop or two of food coloring in the cup and stir to mix.

• Place the cup in the refrigerator. Check on it every half hour or hour. Within 4 hours, crystals should form in the bottom of the cup.

• Scoop the crystals onto a plate using a fork.

• If you want the crystals to last longer, put them in a jar with a lid (the small jars that baby food comes in work well).

More salt can dissolve in hot water than cold, so when the hot water cools in the microwave, the Epsom salts create crystals on the side of the cup. The unique shape of Epsom salt molecules makes them form long crystals that almost look like needles. Different crystals have different shapes. If you look at sugar or salt crystals under a magnifying glass, you can see their cool crystal shapes, too

What you need:

• Flask or bottle

• Vegetable oil

• Water

• Food colouring

• Alka Seltzer (dissolvable aspirin tablets)

Steps:

1. Fill the flask most of the way with vegetable oil.

2. Fill the rest of the flask with water. The water will sink to the bottom under the oil.

3. Add a few drops of food coloring; your choice of color. The food coloring is water-based, so it will also sink and color the water that is now at the bottom of the flask.

4. Break an alka-seltzer tablet into a few small pieces, and drop them in the flask one at a time.

5. Watch your lava lamp erupt into activity! As the reaction slows down, simply add more alka-seltzer.