You could repeat this experiment in the kitchen sink, or a bathtub if you have one. The key point is that the water level ...

However, many years ago, the Earth looked very different to how it does today. Around 250 million years ago, all of the continents were joined together as one supercontinent called Pangea.

Sound as we know it does not exist in space. That’s because, on Earth, sound mainly travels to our ears via vibrating air molecules. Because space is a vacuum, meaning there is no matter at all ...

If you can name it, you're a true Earth Day fan. Otherwise, read on to find out what it is along with other fun facts about the planet and this annual celebration of Mother Earth. There's more ...

Read up on these Earth Day facts below. Get Reader’s Digest’s Read Up newsletter for more holiday tips, fun facts, humor, cleaning, travel and tech all week long. Here's an Earth Day fact ...

Earth, our home planet, is a world unlike any other. The third planet from the sun, Earth is the only place in the known universe confirmed to host life. With a radius of 3,959 miles, Earth is the ...

WWF works to sustain the natural world for the benefit of people and wildlife, collaborating with partners from local to ...

and fun facts to inspire a love for our planet. Why settle for one surprise when you can give them all? Celebrate Earth Month with a National Geographic Kids magazine subscription! Packed with ...