Soap Powered Boat

Things you need-

1. Cardboard
2. Scissors
3. Liquid Soap
4. Pencil
5. A large bowl full of water

Procedure-

1. Draw the shape of boat on cardboard sheet as shown in the first picture don't forget the notch at the back

1. Ask an adult to cut the piece of cardboard precisely in the shape
2. Decorate this by adding cabins made by paper on top of the base of boat

How to use-

1.  Take a small amount of liquid soap and place it on the notch we earlier made and spread
2. Now put the boat in the bowl filled with water and see it sail across the bowl    

How it works-

Well soap is a surfactant when it comes in contact with water the surface tension of the water surface is broken which creates a force that provide the forward thrust to boat.

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Lets Make Slime

Things you will need-

1. Water 1/2 cup
2. White crafting glue 1/2 cup
3. Liquid starch 1/2 cup
4. Mixing Bowl
5. Spoon
6. Food Color

Procedure- 

1. Take the bowl and mix Glue and water nicely
2. Add the food color till you get desired color
3. Now add starch and stir nicely till it becomes slimey

Tips-

If you didn't get the desired texture or consistency try playing with ingredients and make your own composition and your own formula of making slime

Warning-

Do not swallow and not for very small kids Parental guidance recommended.

Keep your slime in a tightly closed plastic bag when you are not playing with it

keep it away from carpet and  hair

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Hovercraft

Things Required-

1. An old CD (Compact Disk)
2. Balloon
3. Super Glue
4. Nuzzled Bottle Cap

 

Procedure-

1. Paste the Bottle Cap With nuzzle facing upside on the hole in the CD.
2. Now Confirm that glue has dried.
3. Now Inflate the Balloon and And put it over the Bottle cap
4.  Now by Adjusting the air pressure the CD will start to hover 
5. The finished Hovercraft should look like the second image
6. Just push the CD now and it will move on table friction-less 

How does it work -

When Air comes down through the hole it lifts the CD and moves uniformly under the CD.This Removes the contact of the CD with the table and thus reduce friction between the surfaces That is why when we push CD it Floats over the table easily 

Fun with hover craft-

You can put some empty cola cans and target it with Hovercraft

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Home made Fire Extinguisher

Things Required-

1. A Plastic Bottle
2. Napkin or  Filter Paper
3. Water
4. Vinegar
5. Baking Soda

 

Procedure-

• Ask an Adult to Make a hole in bottle cap.

                                                              

• Fill the bottle with 1/2 cup vinegar and 1 cup water

•  Now put the 2 spoons of  baking soda on napkin and fold it.
• Now Stick the bag of baking soda inside the mouth of bottle.
• Put the cap on.

How to use-

 When required open the cap push the bag inside close the cap and shake to save the day

How it works-

Baking soda reacts with vinegar to for carbon-dioxide which cuts the supply of oxygen and puts off fire

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