Science is not a chapter to memorise — it is something that happens on your table. 48 experiments and builds, sorted by Std, each with what to do, what you will see, and why it happens.
Four kitchen liquids sit in four separate stripes in one glass, and a grape parks itself halfway down.
🧰 a tall clear glass, honey, washing-up liquid…Try it → Science25 min
An ordinary iron nail picks up a pile of paper clips and drops every one of them the instant you break the circuit.
🧰 one 1.5 volt cell, about one metre of thin insulated copper wire, an iron nail…Try it → Science25 min
A spoonful of dried powder, fed nothing but sugar, inflates a balloon while you watch.
🧰 one teaspoon of dried yeast, two teaspoons of sugar, warm water…Try it → Science25 min
Yellow turmeric paper turns deep red in soapy water and stays yellow in lemon juice, sorting your kitchen into two families.
🧰 one teaspoon of turmeric powder, water, white paper cut into strips…Try it → Science15 min
Your fourteen sketches laid in a row show the lit shape sliding smoothly from a thin curve to a full disc.
🧰 a notebook and pencil, a phone camera, a window or spot with a clear sky view…Try it → Science25 min
Tapping the fullest bottle gives the lowest note, but blowing across the very same bottle gives the highest.
🧰 six identical glass bottles or glasses, water, a measuring cup…Try it → Technology25 min
Your bracelet spells your initial in the only language a computer actually understands: on and off.
🧰 beads or paper squares in two colours, string or thread, paper and pencil…Try it → Technology30 min
Twenty-four still photographs, played quickly, make a clay figure walk across the table on its own.
🧰 an adult's phone camera, a small clay figure or toy, books to prop the phone steady…Try it → Engineering30 min
Rolled newspaper and a few triangles hold a full bottle of water half a metre in the air.
🧰 old newspaper, sticky tape, scissors…Try it → Engineering30 min
Winding a rubber band ten times sends a cardboard car three metres across the floor with no batteries at all.
🧰 stiff cardboard for the body, four bottle caps for wheels, two thin sticks or straws for axles…Try it → Maths30 min
A coin, a plate and a bucket all give the same answer, about 3.14, which cannot be a coincidence.
🧰 a piece of string, a ruler or measuring tape, six round objects of very different sizes…Try it → Maths30 min
Twenty rolls look wildly uneven, but at 120 rolls the six bars have quietly flattened out.
🧰 one die, a cup to shake it in, paper and pencil for a tally chart…Try it →Ask Acharya Samayeshwar about any of these ideas — he explains them for your board and Std.
Ask GuruAcharya Samayeshwar
