PPT
Biology Junction

Changes in Ecosystems: Ecological Succession

For Students 9th - 12th Standards
Can an area with no soil turn into a forest? Scholars learn about the process of ecological succession using an interesting presentation. It covers both primary and secondary succession in the building of new ecosystems.
PPT
Biology Junction

What Is Ecology?

For Students 9th - 12th Standards
Do you know the name for the biological study of interactions? A short presentation with accompanying worksheet introduces individuals to ecology. The materials offer a broad overview of the subject and the levels of organization to...
PPT
Biology Junction

Energy Flow Through an Ecosystem: Food Chains, Food Webs, and Energy Pyramids

For Students 6th - 12th Standards
When a minnow eats a piece of plastic, that garbage often tracks through multiple animals, causing harm to each as it passes through the food chain. Scholars learn about food chains, food webs, and energy pyramids with a presentation. It...
Activity
Howard Hughes Medical Institute

Lactose Intolerance: Fact or Fiction

For Teachers 7th - 12th Standards
Around the world, about 2/3 of adult humans are lactose intolerant. Scholars work in small groups to discuss a few statements about lactose intolerance. Then, they watch a video on the topic and readdress each statement. Whole-class...
Activity
Howard Hughes Medical Institute

Got Lactase? Blood Glucose Data Analysis

For Teachers 9th - 12th Standards
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...
Activity
Howard Hughes Medical Institute

Stickleback Evolution Virtual Lab

For Students 9th - 12th Standards
How quickly do animals evolve? Can comparing different samples of the same fossil answer timeline questions? Scholars use virtual labs to examine fossils and learn about stickleback evolution. They compare pelvic morphology in lakes...
Activity
Howard Hughes Medical Institute

Mendelian Genetics, Probability, Pedigree, and Chi-Square Statistics

For Teachers 9th - 12th Standards
People with the sickle cell trait, but not sickle cell disease, find natural protection against malaria. Scholars consider various combinations of genotypes and environmental factors to determine if children might have sickle cell...
Activity
Serendip

Carbohydrate Consumption, Athletic Performance and Health – Using Science Process Skills to Understand the Evidence

For Teachers 9th - 12th Standards
Should athletes carb load before an event or consume carbohydrates during the competition? Scholars discuss how to set up a hypothesis and experiment to answer a question relating carbohydrates and athletic performance. Then, they read...
Activity
Serendip

Vitamins and Health – Why Experts Disagree

For Teachers 9th - Higher Ed Standards
Should people take vitamins or get the needed minerals through diet? Experts disagree based on many different factors. Scholars compare study findings and discuss the differences. They learn the importance of comparing results across...
Activity
Serendip

Should You Drink Sports Drinks? When? Why?

For Teachers 9th - 12th Standards
New research proves even rinsing your mouth with carbohydrates without swallowing improves performance of the central nervous system. While some think sports drinks are amazing, others say they are a waste of money. Scholars learn about...
Learning
Serendip

Get the Lead Out!

For Teachers 9th - 12th Standards
Around 500,000 children under the age of six suffer from elevated levels of lead in their blood in the United States. Scholars apply their knowledge about lead to a fun game. As they correctly answer questions, they move their pieces...
Activity
Serendip

Mitosis, Meiosis and Fertilization Vocabulary Review Taboo Game

For Teachers 9th - 12th Standards
Can you describe a gamete without using the words sperm or egg? Scholars play a vocabulary review game where they try to get other players to guess their words. Each card has the target word as well as two related words they must not...
Activity
Serendip

How Do Muscles Get the Energy They Need for Athletic Activity?

For Teachers 9th - 12th Standards
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...
PPT
Biology Junction

Viruses, Viroids, and Prions

For Students 9th - 12th Standards
Are viruses living or non-living? According to the presentation, they are both and neither. Clearly, this requires clarification and an in-depth look at viruses, viroids, and prions. Young scientists learn about the history, structure,...
PPT
Biology Junction

Introduction to the Plant Kingdom

For Students 9th - 12th Standards
Plants provide humans with food, shelter, and medications. Scholars gain a better appreciation for plants after learning their functions, divisions, and early ancestors. Each sub-topic includes slides highlighting vocabulary and...
PPT
Biology Junction

Population Genetics

For Students 9th - 12th Standards
Genetic variation shows the health of a population, yet cheetahs show very little variation over that last 10,000 years. Scholars learn the importance of genetic variation in populations after viewing an informative presentation. It...
PPT
Biology Junction

Lamarck vs. Darwin: Introduction to Change in Organisms

For Students 9th - 12th Standards
How are traits passed down from parents? Jean Baptiste Lamarck and Charles Darwin envisioned conflicting theories. Learn about both scientists and their theories with an insightful presentation. Giraffes and dogs serve as examples of...
PPT
Biology Junction

Evolution – Diversity of Life

For Students 9th - 12th Standards
Scientists noticed animals with backbones share similar bone structure despite having different forms, such as fins, arms, and wings. Young scientists gain an appreciation for evolution by understanding the history of the theory. They...
PPT
Biology Junction

Origin of Life

For Students 9th - 12th Standards
Aristotle explained the idea of spontaneous generation, a concept which lasted almost 2,000 years before scientists proved it wrong. Scholars learn about the history of our understanding of the origins of life. They read examples of...
PPT
Biology Junction

Classification of Life

For Students 9th - 12th Standards
Did you know scientists identify more than 13 billion species of organisms, and they discover more almost every day? An interesting presentation demonstrates how scientists keep track of so many species. It also shows how they...
PPT
Biology Junction

DNA Technology

For Students 9th - 12th Standards
One of the first biotechnology breakthroughs occurred in 1982 with the creation of synthetic insulin. Young scientists learn about DNA technology with a presentation and accompanying worksheet. It focuses on DNA extraction and...
PPT
Biology Junction

DNA and Replication

For Students 9th - 12th Standards
Enzymes proofread DNA, reducing the error rate to one in one billion base pairs. Learn about the important process and so much more with the help of a presentation. It opens with the history of DNA and the major scientific contributions...
PPT
Biology Junction

Strawberry DNA

For Students 9th - 12th Standards
Humans eat around 93,205 miles of DNA in an average meal. Scholars learn how to extract DNA from a strawberry using a presentation. It walks through each step and explains why the process works. Comprehension questions encourage...
PPT
Biology Junction

Cellular Division

For Students 9th - 12th Standards
Based on current scientific knowledge, all cells come from preexisting cells. Scholars learn about cell division, cell replication, mitosis, meiosis, and more with a PowerPoint. It describes the differences between prokaryotes and...