There are many substances in the Universe. Wood, metal, glass, dirt, flesh, and so forth. All of which are made of atoms. These substances often change forms through various processes known as physical and chemical changes. Physical changes are changes that happen to a substance without changing its chemical composition. For example, if you melt […]
Mixture A mixture is a combination of two or more substances that are physically combined but not chemically bonded. Keep reading to learn about the different types of mixtures, how they are made, and some examples. In science, when two or more substances are combined physically but not chemically, this is called a mixture. For […]
When atoms come together, they make a molecule. For example, you are made of many different types of molecules–trillions and trillions to be exact! Sure, that probably sounds like a lot till you realize that EVERYTHING around is also made up of molecules. So the couch you’re sitting on? Yup…molecules. The computer screen you’re looking […]
Introduction The minuscule particles known as atoms are the foundation of all matter. Atoms bind with other atoms to from molecules, but they cannot be physically subdivided into anything smaller. The word ‘atom’ has its origins in Greek, from the word atomos which means “uncuttable” or “indivisible”. The ancient Greeks were pioneers in thinking of […]
Our Solar System is made up of eight planets, each with its own unique characteristics. Here’s a brief overview of each one: Mercury is the closest planet to the sun and has very little atmosphere. As a result, it experiences extreme temperatures, with the days being incredibly hot and the nights being very cold. Venus […]
The moon is a natural satellite of the earth, consisting of rock, dust, and ice. It was formed about 4.5 billion years ago, soon after the formation of the earth. When a large planetoid collided with the earth, the resulting debris formed a ring around the earth. This ring eventually coalesced to form the moon. […]
You might be wondering where the beautiful gems in the display case come from. Gemstones are natural crystalline mineral structures that form over many years deep in the earth. They end up on your ring, neck, or earrings after being mined and cut into shape.Did you know that gems and rocks aren’t very different from […]
The earth first formed around 4.5 billion years ago from a huge cloud of dust and gas. This nebula, as it was called, gradually collapsed in on itself under the force of its own gravity. This collapse eventually led to the formation of our sun and all the planets in our solar system, including Earth. […]
This fun experiment will help you see the properties of light. Place a bowl of water in a sunny place, near a wall. Place a mirror at an angle inside the bowl. Catch the rays of the sun, and aim them at a wall.
You have probably held a magnet, and observed how they attract metal as well as other magnets. You may also have noticed that sometimes magnets are not attracted to each other, but instead repeal one another. Why do magnets behave this way? What is going on? Magnetism is a result of the motion and spin […]
