Class 9-10

Paper Chromatography is a Cool Chemistry Science Experiment for Kids to do at Home or in School. In this Experiment Kids learn How Vegetables and Fruits Get the Color . Learn about the color mixing . Cool Science Experiment for Kids to do at Home.
Items Required : Fruits, Flowers, Ethanol, Chemistry Labware

For more interesting and cool Science Experiments, you can visit ZLife Youtube Channel

Mittu is smitten by a photograph of what looks like an ‘X’ in his grandpa’s scrapbook. In response to his questions, Grandpa narrates a story — that of the discovery of the ‘molecule of life’. Does Mittu succeed in his quest to understand the mystery of ‘X’? Let’s find out.

Can there be anything common between the change in pitch of the sound of a motor bike as it zips past us and the light emitted by distant stars as they move away from us? Yes! They are subjected to the Doppler effect.

Many scientific concepts can be understood and demonstrated through simple experiments, using locally available low-cost material. This article presents a few simple but exciting experiments that can be used to understand foundational principles in physics.

Metal-Organic Frameworks (MOFs) are a newly developed class of materials that allow us to store vast amounts of gases at low pressures in small volumes. Why do these materials matter? How do we use them? This article explores advances in our understanding of MOFs.

By cutting the end of a straw you can create a reed instrument that you can actually play a tune on. You can also learn some things about the science of sound and music.

Also look at this video to make a reed based flute only with straws. Looks simple but you need to try this with your students.

Pose these problems to the Senior School students...

The Pythagorean equation x^2 + y^2 = z^2 (to be solved over the positive integers N) is a much-studied one; many articles have appeared in this magazine alone, devoted to this equation. A close relative to this is the equation 1/x + 1/y = 1/z (which can be written as x^−1 + y^−1 = z^−1 ; in this form, its similarity to the Pythagorean equation is readily seen), and this too has been studied many times in At Right Angles.

On the Facebook page (AtRiUM: At Right Angles, Us and Math) linked to this magazine, one of our contributors, Arsalan Wares, has been astonishingly prolific in posting problems. A good many of these have had to do with regular hexagons; more specifically, with the areas of polygonal regions drawn within such hexagons. It is both astonishing and pleasing to see such a rich diversity of problems arising from this simple and familiar structure.

In this edition of ‘Adventures’ we study a few miscellaneous problems, mostly from the Pre-Regional Mathematics Olympiad (PRMO; this year’s PRMO was conducted on August 19 in centres all over the country). As usual, we pose the problems first and present solutions later.

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