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Why fear wolves?

Animals

The fear of the big bad wolf, maintained since the Middle Ages by tales and fables, is linked to the fear of our own animal impulses. But the wolf is practically harmless for the Man […]

1001 colors with red cabbage

Chemistry

Red cabbage juice is ideal for studying color indicators. Anthocyanin, a molecule found in red cabbage, changes color depending on the pH. It’s up to you to find out which of the different substances in the house is acidic or basic. […]

Biology

Red, yellow, green, why do the leaves change colour in the fall?

Have you ever wondered where the colors of the leaves come from? And why do they change colour with the seasons? In this experiment, you will extract pigments from the leaves and use a chemical technique called chromatography. Using capillary forces, you will discover the colourful world hidden in tree leaves. […]