Last Updated on December 10, 2022 by Sherouk Badr Shehata Have you ever dreamed of defying gravity? That dream can now become a reality with the free-fall experiment. This experiment is a great way to learn about the principles of gravity, acceleration, and the conservation of energy. It is also a really fun and interactive way to explore one of …

Last Updated on June 18, 2023 by Sara Assem Acids and Bases play a vital role in our life and all of the environment around us. When you brush your teeth with toothpaste or wash your hands with soap or take your coffee, you’ve already experienced acids and bases. In chemistry, substances are classified as acids or bases or neutral, …

Last Updated on May 14, 2023 by Sara Assem What is Recrystallization? The recrystallization definition is a process used for purifying compounds that contain impurities and these compounds are: – Dissolved at solvents. – Solids at room temperature. – Obtained from chemical reactions or natural sources.   On the other hand, the impurities include mixtures of soluble, insoluble, and colored substances. …

Last Updated on November 15, 2022 by Sara Assem Have you ever wondered how physicists create free-body diagrams? What about economists or biologists? All of these professionals use specific symbols to chart the motion of an object. The importance and virality of free-body diagrams (FBD) in physics are beyond description. Free-body diagrams emerged since Newton’s laws of motion stretched out …

Last Updated on November 15, 2022 by Mostafa Pressure is an intrinsic property of matter. You can exert pressure on a solid, a liquid, or on a gas, and so can solids, liquids, and gasses according to the surrounding conditions. A famous example in this context is the cautionary signs on your perfume bottle, saying “the bottle should not be …