In chemistry, water is the most common solvent for both basic and acidic reactions. It is referred to as amphoteric because it is both an acid and base. From this fact, one question that students ask is: “What happens when water molecules react with other water molecules?” It results in self ionization, Kw. In this post, we will go deeper into the concept to establish what is Kw in chemistry and how to calculate it. (more…)

What is a science fair project? Science fair projects are done by curious students who are looking for answers to their questions. There are various types of science project ideas including an experiment, a presentation, research or simply a showcase of scientific items or instruments. Depending on their particular interests, students will conduct some investigation and present the results of their investigation through the science fair. (more…)

In physics and mathematics, one of the most important topics is vectors. A vector is a quantity that has two crucial components: magnitude and direction. For example, 20 Newton cannot be used as a full description of a force that is acting on an object. The complete description of such a force would be something like 10 Newton, downward (captures both magnitude and direction). (more…)

Mastering Physics is an essential textbook in the teaching and learning of physics. The book comprises of useful information that can prepare you to handle physics questions in your upcoming exams. It’s probably one of the course books you need to have now. The other reason most physics students like this book is because it comes with some questions for homework. But that’s not all. Chances are you are interested in finding Mastering Physics homework answers. What if there’s a better and more straightforward approach to finding physics homework answers? (more…)