HOW TO MAKE A MINI MODLE OF A TWISTER???

Twister is another name for tornado. Tornado is destructive, swirling column of air that creates a funnel-shaped cloud that can lift houses of the ground! Do you want to create a mini twister of your own? Than let's do this experiment!!


Materials:
A clear 1 liter plastic bottle.
Salt
Clear liquid dish detergent 
Water
Measuring spoons
Scale/ruler
Toothpick
Small objects like- Paper clips, rubber bands, Toothpicks, small coins (pennies,dimes), etc.

Instructions

Fill the bottle with water, leaving around 3.7cm at the top.


For every liter of water, add 1 teaspoon of salt, adjust the proportions if the bottle is larger or smaller than a liter.


Screw on the lid and shake until the salt is dissolved completely. If the water looks cloudy set it aside until the water is clear if it is already cleared go on with the experiment.

Take the toothpick and dip the toothpick into the liquid detergent. Now make sure that you drop only one drop of the detergent, do not put more than one drop


Add the objects into the bottle and screw on the lid.


Now set the bottle on the table and using both hands rotate the bottle as fast as possible in counter clockwise direction


Observe: The objects you have added into the water are spinning in the twister!!!

HOW TO PROVE BRITTLE BONES BREAK EASILY??

You know brittle bones break easily. But if I ask you to prove this fact can you prove it? If not you should do the following experiment


Materials:
A twig from a young plant
A twig from a very old tree (try to find the oldest tree you can!)

Instructions

Take the twig from the young plant and break it. Notice that it breaks easily.

Now take the twig from the old tree  and break it. Notice, the twig from the old tree breaks more easily compared to the twig of the old tree. 

So you have prove that brittle bones break easily!

HOW TO MAKE A COIN FLOAT ON WATER??

Can you make a coin float on water? You can't? Then try this experiment!


Materials:
A coin
A glass of water
Cup
Blu tack
A non transparent china or a plastic cup

Instructions

Place the blu tack in the middle of the coin and place the blu tacked coin in the middle of the cup.


Position the coin so that it would not move when water is poured.
Pour little water (do not fill in the cup)


Now move back until you cannot see the coin inside the cup anymore and pour some water from where you are standing. AND VOILA!! The coin magically rises!!

This is just an optical illusion! The coin does not actually floats up!

HOW TO PROVE EVAPORATION AND CONDENSATION TAKES PLACE??

Let's prove evaporation and condensation takes place!


Materials
A clean dry glass jar with a lid
A small piece of cotton soaked in water

Instructions

Put the cotton soaked in water into the glass jar and close the lid.

Place it outdoors where sunshine is available and leave it there for 1 hour.

Observe: You will notice that tiny droplets of water are sticking to the upper-inner surface of the glass jar. It is because the water in the cotton changes into  vapor  on absorbing heat energy is called  Evaporation

The water vapor on coming into contact with upper cold surface of glass jar condenses to form tiny droplets of water. This process is known as Condensation

HOW TO MAKE A WIND CHIME!!

Let's make a wind chime!!(Do this experiment on a windy day)


Materials:
A few metal spoons and forks
Many 25cm-30cm strings
A tree branch

Instructions

Tie one end of the string to each spoon and fork one string for one object.

Tie the other end of each string to the tree branch and make sure that the objects are at least 1.2cm apart from each other. Then hang the tree branch you have tied the spoons and forks to wherever you want, outdoors.

Your wind chime is ready!!!

HOW TO MAKE A RAIN GAUGE?!?!

Do you know how to make a rain gauge??? Rain gauge is a device used to measure rainfall! Making a rain gauge is easy, just follow the following steps!!(Do this experiment when you know it would rain!)


Materials:
A rain gauge ruler ( print the ruler below!!)

This is the rain gauge ruler!

A bottle (a bottle of olives would do)
clear cellophane or plastic sandwich bag
Tape

Instructions

Cut out the rain gauge ruler.

Cover the ruler with clear cellophane, front and back. This will protect it from the rain.

Strand the ruler inside the glass container so that the ruler rests on the bottom of the container.

Tape it at the top, to the inside of the jar, so that the ruler does not fall.

Place your rain gauge outside where nothing can fall on it.

When the rain stops, check how much water is filled in the glass.