In modern times we often do not realize how often chemistry affects our lives. We use shampoo and conditioner to keep our hair soft and manageable. We then brush our teeth with whitening tooth paste and rinse with anti-plaque mouthwash. Chemists formulated all those substances for you without you even realizing it. Chemistry affects you before you are even awake for your day. Chemistry is the branch of science that studies matter and interactions between substances. Chemistry is used in all walks of life from the moment you wake up and brush your teeth to the moment you answer your mobile phone. Chemistry is a math intensive science. You will learn things like the most common element in the universe is hydrogen. You will also learn that the most used controlled reaction is fire. It is used to make more things and mostly like the pinnacle tool used by humans.
This selection of worksheets covers all the major aspects of school-based chemistry. We begin by comparing the organic compounds to compounds that do and do not include carbon. We explore chemical reactions that require water and produce it as a byproduct. Students will learn the differences between elements, compounds, and mixtures. We look at chemical symbols and formulas for them as well. We at the concept of exothermic and endothermic reactions and how that results during phase changes. This is one of our bigger science sections. The sheets found here start with organic chemistry and advance to understanding the interactions between substances including energy release and bonding.