When we think of sand, what first comes to mind? Sure, summer, sun, sunshine – and this of course, on the beach. Sand is perfect for digging in your feet or building sandcastles, but not only for that! Without sand,…
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Summer holiday walks call for interesting adventures! As you walk through your city or the town you are visiting, pay close attention to important or interesting houses and read historical or current information boards. But especially look out for special…
Smell is one of the basic senses through which we perceive scents or odours caused by chemical substances in the inhaled air. Smell is related to the taste of food, it is used in aromatherapy, but it can also warn…
Sunny spring offers the joy of blossoms and fresh greens. This is also an intensive period of decision-making for every gardener: what to grow, where to seed, or is there enough seeds? Tom and Ana decided to plant sweet peas…
Spring is here, holidays are approaching and as an end-of-exams celebration, students and their families throw a lot of confetti over the celebrating ones. Confetti is difficult to clean up and often end up in the stormwater in shape of micro…
Maritime canals and straits play a critical role in international trade and they usually experience heavy shipping traffic. For instance, the Suez Canal, an artificial sea-level waterway in Egypt and considered the greatest engineering feats in the nineteenth century, recently…
Rainbow in the sky – where does the rainbow come from and why is it round? First it rains, then the sun begins to shine. And with a little luck, a brightly colored rainbow starts to appear in the sky….
Masks: A sign of solidarity It’s hard to imagine everyday life without them – whether shopping or at school, masks are always with us, because we want to protect ourselves and our loved ones. And in order to maintain its…
Because of Corona we all have to keep distance from each other. Countries use various measures. In the Netherlands, for example, a distance of 1,5 meters must be maintained, but in other countries such as France it is only 1…
Magnificent avenues of horse chestnut trees have adorned the city parks for over a hundred years. Have you ever taken a closer look at the remarkable inflorescences and striking leaves? Was it also a pleasure for you in kindergarten to…
