Have you ever noticed the tiny fruit flies flitting around your fruit bowl in the summertime? Did you know that they have been used for genetic research for nearly a hundred years? Genetics is the stu ...
One fun way to start learning about solutions is to open your refrigerator. Do you have any orange juice? Pour yourself a small glass. Do you have any soda or iced tea? Pour another small glass. Look ...
Electricity is both commonplace and mysterious.We rely on it every day to run our lights and appliances, but how does it work?An electrical current occurs when electrical charges are in motion.You can ...
Have you ever woken up after a clear summer night to find the grass is wet, even though you know it didn’t rain overnight? The moisture on the grass is called dew, which forms when water in the form o ...
It’s hard to believe, but the tiny grains of sand you see at the beach were once part of giant boulders. Over many years, these huge rocks were broken down into smaller pieces in a process called weat ...
Has your flashlight ever stopped working because the batteries were dead? It’s no fun walking around in complete darkness. Batteries are everywhere—in our toys, in our cars, in our flashlights and cel ...
Velocity is the rate of change of an object involving both its speed and direction of motion. You are probably already familiar with speed, which is how fast or slow an object is going. The speedomete ...
The first thing many kids do when they get home from school is open the refrigerator. Is your refrigerator door covered with cards, photos and papers? You probably already figured out that refrigerato ...
Buildings are made of multiple bricks; you are made of millions of cells.The cell is the basic unit of all living things.The cells in your body vary in size, a single nerve cell can be up to a 1 meter ...
Have you ever noticed how the Sun moves across the sky during the day? It rises in the East and reaches its highest point in the sky around lunchtime. Then, it descends, setting in the West. Although ...