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|TCode||TACtivity Name||TACtivity Description||Packs|
|BP20||Seed Dispersal Models||Seed dispersal is the movement or the transport of seeds from one place to another by a vector (animal, wind, water). Seeds are dispersed naturally and manually. In this TACtivity, we will learn the different patterns and modes of seed dispersal using very simple materials.||PACK OF 4||PACK OF 10|
|PT02||Magnet Spinner||Ring magnets behave fascinatingly when inserted into any metal rod that is magnetic, e.g. an iron rod. Here, we use a cycle spoke as the rod and notice the wonderful behaviour of the magnets as they spin down the spoke! This causes vibrations at the bottom of the spoke, where a cardboard spinner spins rapidly as the magnets descend! Does changing the number of magnets change anything? What are the forces involved in the functioning of this enjoyable TACtivity?|
|PM13||DIY Compass||The Earth happens to have its own magnetic field; in other words, it is a giant magnet in itself, because it has a rotating magnetic core. It is one of the reasons life exists on Earth, as the magnetic field provides a protective zone around the Earth preventing dangerous high energy particles penetrating our atmosphere and affecting our cells.
In this TACtivity, we make a compass of our own, using magnets and a template to mount them in, to determine the orientation of the Earth’s magnetic field.
|PL20||DIY Microscope||A microscope is an instrument used to observe very minute/small objects that are not visible to the naked eye. It consists of a diverging (convex/biconvex) lens, which enlarges the small objects to make it visible to the human eye.
In this TACtivity, we will make a microscope using glass beads (which act as the biconvex lens) and explore it by adjusting its focus to get a clear image and viewing some interesting objects.
|BP12||Microscope – Leaf Venation||Observing the veins on different kinds of leaves is a great way to not only appreciate how water and nutrients are transported in plants, but is also an effective tool in identifying plants and their types. In this TACtivity, you use your own DIY Microscope to observe leaf venations on all kinds of leaves|
|BP03||Fibre – Weaving||Cloth is made by interweaving various fibres into a single stronger thread, which can then be woven into cloth. Here, we simulate that experience by using strips of satin ribbon and threads to weave a mat on a piece of cardboard.||PACK OF 6|
|BA09||Respiration – Lung Capacity||Our lungs are amongst one of our most vital and fascinating organs. All kinds of statistics about them boggle the mind. In this TACtivity, using a long polythene bag, we make an incredibly simple yet versatile implement to measure the volume of air you can exhale in each breath, for various different conditions. Your lung capacity is a key indicator of your general well-being.|
|BA10||Lung Model||Our lungs are amongst one of our most vital and fascinating organs. To perform the act of breathing, they are assisted heavily by a lesser-known but equally vital organ: the diaphragm. In this TACtivity, we use a cut bottle, some straws and a few balloons to simulate the dual functioning of the lungs and the diaphragm.|
|CC10||Fire Extinguisher Model||Fires kill more than a hundred thousand people every year worldwide. The numbers would be far higher were there no fire extinguishers and fire persons to deal with them. How are they extinguished? What can be done to save more lives, if help is not near at hand? Fire requires 3 key ingredients: material to burn, oxygen and an initial temperature high enough to ignite the material. Take any one of these 3 out, and you have yourself a potentially effective fire extinguisher. In this experiment, we produce carbon dioxide using a classic reaction, and use that to douse a candle flame by literally “pouring” it over the flame.|
|PM07||Magnetism – Field Lines||Magnetic field lines are used to represent magnetic fields. They are continuous and form a closed loop, conventionally directed from the north magnetic pole to the south.
In this TACtivity, we use bar magnets, ring magnets, a cardboard piece and iron filings to observe magnetic field lines.
|PF21||Shower Model||Liquids do not have a definite shape, and hence apply pressure equally in all directions when stored in a container. Pressure can be caused by gravity, acceleration or by forces outside a closed container.
In this TACtivity, we learn about liquid (fluid) pressure, by making a shower using a plastic bottle, a bottle cap with a hole and coloured water. We create a shower, which we can turn on and off by opening and closing the hole in the bottle cap with our finger!
|CC15||Food Test – Starch||The food we eat contains various nutrients that are required by the body. One of these vital components is starch. Here, we use iodine solution on various food samples to test for the presence of starch in them|