CK-12 Foundation
Ck 12: Accuracy and Precision
[Free Registration/Login may be required to access all resource tools.] The difference between accuracy and precision is explained, accompanied by examples.
CK-12 Foundation
Ck 12: Units of Measurement
[Free Registration/Login may be required to access all resource tools.] Students will learn how to use standard scientific units of measurement (SI units) in biology.
CK-12 Foundation
Ck 12: General Chemistry
[Free Registration/Login may be required to access all resource tools.] Students will be introduced to some of the basic concepts of chemistry.
CK-12 Foundation
Ck 12: Solutions, Acids and Bases
[Free Registration/Login may be required to access all resource tools.] Solutions, acids, and bases are the focus of this lesson. The use of the pH scale to identify acids and bases is covered as well.
CK-12 Foundation
Ck 12: Water and Life
[Free Registration/Login may be required to access all resource tools.] The chemical and physical properties of water are examined in this lesson, including the role of hydrogen bonds in determining water's properties. The importance of...
CK-12 Foundation
Ck 12: Properties of Water
[Free Registration/Login may be required to access all resource tools.] Students look at the chemical structure of water and learn how it determines water's properties.
CK-12 Foundation
Ck 12: Virus Classification
[Free Registration/Login may be required to access all resource tools.] Discusses the many different viruses and how they are classified.
CK-12 Foundation
Ck 12: Discovery and Origin of Viruses
[Free Registration/Login may be required to access all resource tools.] Describes the discovery of viruses and two hypotheses for the origin of viruses.
CK-12 Foundation
Ck 12: Excretory System Diseases
[Free Registration/Login may be required to access all resource tools.] Kidney stones. Imagine having that travel through your excretory system. Kidney stones can be more than a few millimeters in diameter. Painful? Sometimes extremely...
CK-12 Foundation
Ck 12: Barriers to Pathogens
[Free Registration/Login may be required to access all resource tools.] In the following tutorial you will learn about the barriers that keep most pathogens out of the human body.
CK-12 Foundation
Ck 12: Immunity
[Free Registration/Login may be required to access all resource tools.] Is giving shots to young children a good thing? Many, if not most, children hated going to the doctor, as it often meant getting a shot. Why? The shot actually...
CK-12 Foundation
Ck 12: Immunodeficiency
[Free Registration/Login may be required to access all resource tools.] Which is stronger? You or little tiny pathogens? Usually you are. Normally your body can put up a strong defense against enemy pathogens. But what if it can't? What...
CK-12 Foundation
Ck 12: Male Reproductive Structures
[Free Registration/Login may be required to access all resource tools.] Would you believe the male reproductive structures are over 100 feet long? The male reproductive system has two goals: to produce and deliver sperm and to secrete...
CK-12 Foundation
Ck 12: Female Reproductive Structures
[Free Registration/Login may be required to access all resource tools.] Think producing millions of sperm each day is complicated?If producing millions of sperm each day, as in the male reproductive system, is complicated, that is...
CK-12 Foundation
Ck 12: Introduction to Chemistry
[Free Registration/Login may be required to access all resource tools.] This introduction to chemistry leads students into a learning module series over topics having to do with chemistry.
CK-12 Foundation
Ck 12: Evolution of the Atomic Model
[Free Registration/Login may be required to access all resource tools.] Students take a closer look at how our understanding of the atom has evolved over time.
CK-12 Foundation
Ck 12: Stoichiometric Calculations
[Free Registration/Login may be required to access all resource tools.] Based on the balanced chemical equation, students will calculate the masses or moles of reactants or products generated in a given reaction. They will also convert...
CK-12 Foundation
Ck 12: Heat Flow
[Free Registration/Login may be required to access all resource tools.] In this lesson, students study the difference between reactions that absorb versus release heat as well as how to measure this change in energy.
CK-12 Foundation
Ck 12: Graphing
[Free Registration/Login may be required to access all resource tools.] Given a set of data, students will understand how to correctly draw a line or bar graph, interpret its patterns, and find the slope in the case of a line graph.
CK-12 Foundation
Ck 12: Chemical Reactions
[Free Registration/Login may be required to access all resource tools.] What happens in a chemical reaction is explained, along with how it is represented by a chemical equation. In a chemical reaction, the law of conservation of matter...
CK-12 Foundation
Ck 12: Energy and Its Forms
[Free Registration/Login may be required to access all resource tools.] Students explore the different forms of energy and investigate how the law of conservation of energy plays an important part of those forms.
CK-12 Foundation
Ck 12: Combined Series Parallel Circuits
[Free Registration/Login may be required to access all resource tools.] Presents methods for solving electrical circuit problems where there is a combination of series and parallel circuit features.
CK-12 Foundation
Ck 12: Parallel Circuits
[Free Registration/Login may be required to access all resource tools.] In this lesson, students learn about parallel circuit design, and how to calculate equivalent resistance from resistors in a parallel circuit.
CK-12 Foundation
Ck 12: Series Circuits
[Free Registration/Login may be required to access all resource tools.] In this lesson, students learn about series circuit design, and the role of resistors in maintaining the integrity of a circuit.