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Knowledge world is a library of articles, project ideas, interesting videos and interviews of all the five K-12 stakeholders , activities for Students, activities for Teachers and Parents to use with children and Project Ideas that Students can use for their project work. Use search or filters to find your desired knowledge resource.

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Next EducationMarch 11, 2015
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1min0

Let us do some fun with your stocking and learn the science behind it.

Materials

  • Nylon stocking (One)
  • One polyethylene bag (Make sure it is transparent)

Instructions

  • At first, stroke the stocking briskly for some time using the bag.
  • Now, hold it in the air and see what happens.

Observation & explanation

You will notice that the stocking appears to fill out as i…


Next EducationFebruary 26, 2015
Bottel-with-Soda19.jpg

1min0

This project will show a catalyst’s role in the combustion process of a sugar cube.

Materials

  • Sugar cube
  • Matches
  • Ashes

Instructions

  • At first, try to set the sugar cube on fire using the match.
  • You won’t be able to do it.
  • Cover some ashes on a side of the cube.
  • Now, set it again on fire.
  • See what happens.

Observation


Next EducationJanuary 20, 2015
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1min0

How will you understand whether an egg is boiled or not? Let’s try this project.

Materials

  • One hardboiled egg
  • One raw egg
  • Refrigerator

Instructions

  • Keep the hardboiled egg in the refrigerator so that its temperature becomes the same as that of the raw egg.
  • Spin both the eggs.
  • You will see one egg spinning, while another wobbling.
  • Now touch both the eggs lightly. You…

Next EducationJanuary 9, 2015
Bottel-with-Soda17.jpg

1min0

This project provides some insights into how to create a tornado in a bottle.

Materials

  • One transparent plastic bottle with cap
  • Dishwashing liquid
  • Water
  • Glitter

Instructions

  • Fill three quarters of the bottle with water.
  • Add some dishwashing liquid to it.
  • Sprinkle some glitters into it.
  • Put on the cap.
  • Start spinning the bottle in a circular motion…

Next EducationJanuary 7, 2015
Bottel-with-Soda12.jpg

1min0

This project shows how to accelerate the melting process of the ice without any hassle.

Materials

  • Ice cube
  • Container
  • Tray
  • Piece of fishing line having weights attached both the ends

Instructions

  • Take the container, put it upside down, and keep it on the tray.
  • Put the ice cube on the top of the container.
  • Over the ice cube, keep the fishing line in a way that its weight…

Next EducationJanuary 5, 2015
Bottel-with-Soda4.jpg

1min0

Do this project at home in order to get a better understanding of the process called dehydration.

Materials

  • Medium-size potato
  • Saucers (2)
  • Knife
  • Water
  • Salt (2 tablespoons)
  • Paper piece
  • Marker

Instructions

  • In a piece of paper, write the letter ‘S’ and keep it on a table.
  • Put one saucer on the paper and the second one beside it.
  • Pour the s…

Next EducationJanuary 5, 2015
Bottel-with-Soda65.jpg

1min0

Try Galileo’s falling objects experiment at home and get a better idea of whether larger things fall faster than lighter things under the similar conditions.

Materials          

  • One steel ball
  • One rubber ball (Make sure that the size of both the balls is same)
  • Notepad

Instructions

  • Go to the terrace with the balls.
  • Once you reach the terrace, stretch your both hands at the same le…

Next EducationJanuary 2, 2015
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1min0

Create beautiful crystal arts and learn the science behind it.

Materials

  • Three new sponges (Make sure they are completely dry)
  • Food colorings (Two different colors)
  • Metal spoon
  • Ammonia (2 tpsp enough)
  • Table salt (1/4 cup)
  • Laundry bluing (1/4 cup)
  • Water(1/4 cup)
  • Mixing bowl
  • Measuring cup
  • Aluminum cake pan

Procedure

  • Put all spo…