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A fraction is a mathematical term that represents dividing a whole into parts. It contains a numerator and a denominator. The numerator is the top number of the fraction and represents the number of parts; the denominator is the bottom…
To calculate the molecular mass of a compound, you need to know two things. The first is the molecular formula, and the second is the atomic mass number of each of the elements that comprise it. The atomic mass number…
When chemicals combine, they do so in known, fixed proportions. Even if you have never formally worked with chemicals yourself, you have probably seen your share of chemical reactions written out, and know that they appear in a predictable format.…
The word “clam” can be a very vague term. It generally refers to a type of animal called a “bivalve mollusk,” though the term clam can include, all, some or just a very few species from this type of animal.…
The science of density and buoyancy determine whether objects will sink or float in water. If an object’s density is greater than water, it will sink. Conversely, if an object’s density is less than water, it will float. In the…
Hess’s Law describes the conservation of energy in chemical reactions, stating that the heat flow of a reaction is equal to the sum of the heat flow of its composite reactions. A calorimeter measures the heat flow by creating a…
Just like humans and animals, plants need energy to survive and thrive, and they make their food themselves via a process called photosynthesis, which occurs only in the presence of light. This process takes place in the plant’s food-producing chloroplasts,…
Whether you’re listening to a lecture on the results of a study or are reading a scientific journal, you’re bound to come across the word “results.” Simple on the surface, but complex behind the scenes, “results” mystifies even some advanced…
A model is a description of natural phenomenon that scientists can use to make predictions. A good model is both as accurate as possible and as simple as possible, which makes it not only powerful but also easy to understand.…
Have you ever wondered how you would you solve math problems if you didn’t have a calculator or computer or even pencil and paper? For centuries, people in Asia have used an ancient counting tool to perform mathematical operations. The…
