An eight-unit electronic textbook provides a guide to AP® Biology. Each of the 28 chapters include an introduction, multiple lessons, a summary, review questions, and test prep questions. Teachers see how each lesson connects to a big...

The human body produces about 1.7 liters of saliva a day to aid in digestion. Here is a video that explores the digestive system, highlighting the difference between mechanical and chemical digestion. Scholars then see each organ of the...

Food scientists are responsible for keeping food factories clean and keeping consumers safe. Find out what it takes to become these superheroes of the food industry with a short video that details the skills, education, and training...

Find out why Earth hangs in a delicate balance between cellular respiration and photosynthesis with a compact activity. Biologists compare and contrast cellular respiration with photosynthesis by examining the functions and products of...

Energize biologists with colorful images in an activity that captivates the imagination while demystifying the subject of cellular respiration. Participants build comprehension skills and access core content knowledge by analyzing text...

Understanding soil composition requires an understanding of chemical bonding. An informative video lesson shows learners how the atoms and molecules in the soil form ions that attract and repel other atoms and molecules. The narrator...

How diverse are living things? Individuals explore topics such as cells as the foundation for life, cell division and genetics, molecular biology, and animal reproduction using an open resource Biology textbook. They learn key terms...

Many physicals include a blood glucose test, but what are doctors actually testing? Scholars graph and interpret blood glucose data, allowing them to observe the differences in lactase persistence and draw conclusions. They then connect...

Every muscle movement requires energy, but where does that energy come from? Scholars answer this question and more as they complete a worksheet. By following the directions, completing research, and discussing it as a class, they begin...

Are dinosaurs more like birds or reptiles? Learners put the question to the test by analyzing body temperature data from a 2014 study. With their analysis, they develop a theory about the body temperature regulation of dinosaurs.

When an organism eats, how does food become energy? Young biologists follow glucose through the process of cellular respiration to the creation of ADP using a discussion-based activity. The resource also highlights conservation of mass...

How does energy from the sun make plants grow? Scholars move step by step through the processes that promote plant propagation during a detailed lesson. The resource illustrates ADP production and hydrolysis, then allows learners to...

High schoolers learn why humans need calories, how they control weight with food choices, and the impact of exercise on energy. Scholars then apply their understanding to a case study of lunch choices and exercise.

How do scientists prove tiny living things respire? Young scientists build a respirometer and measure respiration rates in living creatures. By comparing the measurements of both plants and animals, they understand the similarities.

How do Olympic runners succeed in physically demanding events like the 400-meter dash? Physiology scholars explore the relationship between acids, bases, and the muscular system through a scenario-driven activity. The lesson focuses on...

Bacteria outnumber all other forms of life on Earth. Scholars observe the growth of bacteria in petri dishes to understand their role in maintaining good health. Then, they observe the growth of bacteria after they introduce...

How do you plan to approach standard LS1C, Organization for Matter and Energy Flow in Organisms? Avoid information overload with helpful advice in a short video. Topics include energy sources, relationships between organisms, and...

Cellular respiration and photosynthesis relate closely, but many don't realize how. Scholars drag and drop the reactants and products to the chemical reactions for both processes. Then they answer three multiple-choice questions.

Explore human anatomy and physiology using models. Scholars study systems of the human body and design a display for a museum exhibit. To complete the activity, individuals create analogous models of their chosen human body systems.

Young people between the ages of 11–13 need on average about 2,000 calories per day. Within the lab, groups learn about calorimetry and respiration. They explore how it pertains to humans and animals living the Arctic where cold...

Sixty-one percent of 5-10 year olds who are overweight have at least one risk factor for heart disease, and 26 percent have two or more. Explore the obesity epidemic with a video that shows obesity trends across the world. Viewers see...

The Krebs cycle is the focus of a video that shows how ATP, or adenosine triphosphate, is made by the body through the complex processes of glycolysis, the Krebs cycle, and the electron transport chain. 

ATP — it's everywhere! The video describes aerobic and anaerobic respiration, how the processes of glycolysis, the Kreb cycle, and the Electron Transport Chain work inside the cells to produce ATP, and ends with a discussion about lactic...