Why Earth Has Day and Night
Have you ever wondered why it becomes day and night every 24 hours? This topic is popular in classrooms because it explains one of the most important movements of our…
How Our Lungs Help Us Breathe and Stay Alive
Breathing is something we do every moment without thinking, but our lungs work very hard to keep us alive. This topic is trending because doctors and teachers are helping children…
What Are Glaciers and Why Are They Melting?
High up in mountains and near the Earth’s poles are giant rivers of ice called glaciers. This topic is trending because scientists say many glaciers are melting faster than before,…
Why Water Is Precious and How We Can Save It
Water is one of the most important things on Earth, and this topic is trending because scientists say fresh water is becoming scarce in many parts of the world. Even…
Are Animals Intelligent? How Scientists Study Animal Intelligence
Animals do many amazing things — dolphins solve problems, crows use tools, elephants remember faces, and dogs understand human emotions. This topic is trending because scientists are learning more about…
How Plants Make Their Own Food: The Magic of Photosynthesis
Plants may look quiet and still, but inside their leaves something amazing is happening every day. This topic is trending because scientists and teachers are helping children understand photosynthesis, the…
What Are Volcanoes and Why Do They Erupt?
Volcanoes are among the most powerful natural wonders on Earth, and this topic is trending because scientists are closely watching volcanic activity in different parts of the world to keep…
Why Washing Hands Is One of the Best Ways to Stay Healthy
Doctors and scientists around the world say washing hands properly is one of the easiest and most powerful ways to stay healthy, and this topic is trending because simple habits…
How Public Transport Helps Cities Stay Clean and Connected
Buses, trains and metros are an important part of daily life in many cities, and this topic is trending because experts say public transport helps reduce pollution, traffic and travel…
Why Our Brain Needs Sleep and What Happens When We Don’t Rest Enough
Doctors and scientists say sleep is just as important as food and exercise, and this topic is trending because many children are sleeping less due to homework, screens and busy…