This lesson introduces the properties of acids and bases, including the various theories that define them. It also covers acid-base reactions and the pH scale. The following video will provide a review on Acids and Bases. Nature of Acids and Bases Acids are compounds that contain at least one hydrogen atom or proton (H+), which, …
This lesson discusses the properties of different types of mixtures, focusing on solutions. Then, it examines aspects of chemical reactions, including the components of the reactions and the types of changes that occur. The following videos will provide a review on the topics covered within Chemical Solutions. Chemical Reactions Part I: Chemical Formulas Chemical Reactions …
This lesson introduces bonding and explains the three ways in which atoms can become stable. The rest of the lesson examines different types of bonds in more detail. The following video will provide a review on Chemical Bonds. Introduction to Bonding Chemical elements found in the periodic table have different levels of reactivity. The number …
This lesson introduces the properties of matter, which are fundamental to the understanding of chemistry. The following video will provide a review on States of Matter & Properties of Matter. Matter and Its Properties Aluminum, clothing, water, air, and glass are all different kinds of matter. Matter is anything that takes up space and has …
This lesson explains the differences between solids, liquids, gases, and plasmas. It also describes how a sample can change from one state of matter to another. The following video will provide a review on the States of Matter. States of Matter On Earth, substances are found in four states of matter: solid, liquid, gas, and …
Matter is anything that takes up space and has mass. Chemistry is the study of matter, its properties, and properties of the substances that matter creates. At this point, we understand that cells are the basic subunits of all living things. But instead of analyzing cells on a grander scheme as in anatomy and physiology, …
The lesson introduces genetics, which is the study of heredity. Heredity is the characteristics offspring inherit from their parents. This lesson also examines Gregor Mendel’s theories of heredity and how they have affected the field of genetics. Part I Part II Gregor Mendel and Garden Peas From experiments with garden peas, Mendel developed a simple …
Cell Respiration Once cells have been made, they need to be powered. Plants and some other cells can capture the energy of light and convert it into stored energy in ATP. However, most prokaryotic cells and all eukaryotic cells can perform a metabolic process called cellular respiration. Cellular respiration is the process by which the mitochondria …
This lesson introduces basic processes of cellular reproduction and the division of cells. These processes provide ways for cells to make new cells. Cell Reproduction Cells divide primarily for growth, repair, and reproduction. When an organism grows, it normally needs more cells. If damage occurs, more cells must appear to repair the damage and replace …
This lesson describes the cell structure and two different types of cells. The lesson also explores the functions of various cell parts. Cell Theory and Types All living things are made of cells. Cells are the smallest structural units and basic building blocks of living things. Cells contain everything necessary to keep living things alive. Varying in …
