Magicians can do all kinds of neat stuff, like pulling rabbits out of hats and making objects mysteriously disappear. Science is even more powerful! For this science fair project, you’re going to see ...
Water is essential for all living things, including plants. Vegetation relies on water in the ground surrounding its roots.After you’ve watered a wilted plant, you’ve probably noticed how the plant’s ...
We all know that plants can’t walk from place to place, but they do move their stems, leaves, and roots in response to their environment. It just happens too slowly for us to see. These plant movement ...
It's a trick, it's magic -- no! It's capillary action, the amazing, gravity-defying scientific phenomenon that causes liquids to flow up. How does it work? Why does it work? Wonder no more because wit ...
A solar system is a group of planets and other space material orbiting (going around) a star. In our solar system, that star is better known as the Sun and the planets are Mercury, Venus, Earth, Mars, ...
Molecules, as you may already know, are groups of atoms bonded together. Water, or H2O, is a molecule made of two hydrogen atoms and one oxygen atom. The oxygen gas we inhale (O2) is a molecule made o ...
A lever is a type of simple machine where a rigid arm is arranged around a fixed point or fulcrum. Input, the force you put in, directed into an output force. The classic example of a lever is a seesa ...
What causes the seasons to change? The first answer many people give when asked why the Earth gets cold in the winter and warm in the summer is because the Earth’s distance from the sun can vary durin ...
The nervous system helps information travel through your body. It consists of the 5 senses, your brain, your spinal column, and the nerves that connect them all together. Suppose your eyes see a baseb ...
One of the hallmarks of autumn, besides leaves falling and children returning to school, is frost. Frost is the fine layer of water crystals that forms from water vapor in the air. In August, you migh ...