Howard Hughes Medical Institute
The Making of the Fittest: Natural Selection in Humans
Sickle cell disease only occurs when both parents contribute the trait, and mostly in those of African descent. Where did it come from? How did it evolve? Tony Allison, a molecular biologist, noticed a connection between sickle cell and...
University of California
Artificially Selecting Dogs
Selective breeding has resulted in some novel and beautiful or useful dogs over the years. Using the American Foxhound as an example, genetics learners find out how and why they came about. Then, in small groups, they select breeds to...
Howard Hughes Medical Institute
The Making of the Fittest: Got Lactase? The Co-evolution of Genes and Culture
Got milk? Only two cultures have had it long enough to develop the tolerance of lactose as an adult. Learn how the responsible genes evolved along with the cultures that have been consuming milk. This rich film is supplied with a few...
Howard Hughes Medical Institute
The Making of the Fittest: Natural Selection and Adaptation
The pocket mouse can be light brown like the sands of the desert, or dark brown like the volcanic lava flows that are interspersed throughout New Mexico's Valley of Fire. It seems that predators have weeded out light colored mice in this...
Scholastic
Science Method Printables
Six color posters are included, one for each step of the scientific method. Each step in the process is named, and three points to remember or questions to ask are also included to stimulate thinking.
Field Museum
The Case of Darwin's Finches
One of the most striking pieces of evidence for Darwin's Evolution of Species was his observations of finches and how their beaks differed from island to island, depending on their primary food sources. So what would happen to the theory...
Howard Hughes Medical Institute
How Novel Icefish Genes Can Improve Human Health
Designed to accompany the 13-minute video The Making of the Fittest: The Birth and Death of Genes, this handout serves as both a viewing guide during the video and an analysis of how the adaptations of the icefish might help treat some...
Howard Hughes Medical Institute
Got Lactase? The Co-Evolution of Genes and Culture
Does the human body evolve as quickly as human culture? With a stellar 15-minute video, explore the trait of lactose intolerance. Only about 1/3 of human adults seem to still have the enzyme lactase and therefore, the ability to digest...
Scholastic
Study Jams! Animal Cells
Using stunning computer imagery, this resource introduces life science learners to cells. It zeros in on the animal cell and the function of its more prominent organelles. Additional support is offered in the form of a self-assessment...
Baylor College
Heart Rate and Exercise
What is the relationship among the heart, circulation, and exercise? Your class members will explore first-hand how different physical exercises affect an individual's heart rate. They will begin by learning how to measure their own...
Baylor College
Reebops: A “Model” Organism for Teaching Genetic Concepts
In a sweet simulation, junior geneticists examine the chromosomes of a fictitious Reebop marshmallow animal, combine chromosomes to produce offspring, and then make a model of the resulting Reebop baby. Phenotypes include number of...
Baylor College
Infectious Disease Case Study
Small groups of life science learners look at Allison's symptoms and discuss a diagnosis. They use a chart of illnesses and draw symptom clues from an envelope to determine what illness she has. A lesson like this gives children an...
Baylor College
Observing Different Microbes
Following directions from a colorful slide preparation card, beginning biologists examine three different live microorganisms: bacteria, yeast, and paramecia. This is not an unusual activity to do with your class, but if you are doing it...
Baylor College
Mapping the Spread of HIV/AIDS
Where is HIV/AIDS most prevalent and what are the current trends regarding HIV? Have groups work together to map the world's HIV/AIDS rates, then create a class map with all the data. Lesson includes cross-disciplinary concepts including...
Baylor College
Pre-Assessment Activity: What Do You Know About Microbes?
In an introductory lesson plan, youngsters take a pre-assessment quiz, get a grasp of a gram of mass, and then estimate the mass of microorganisms that live within a human body. Using Glo Germ™, a material that allows you to simulate the...
Baylor College
Tools of Magnification
Life science learners need to be able to use a microscope. With this comprehensive resource, they first experience how lenses and magnification work, and then get familiar with using a compound microscope. Tremendous background...
Baylor College
Magnifying and Observing Cells
Though it isn't a novel activity to prepare onion cell and Elodea plant cell slides as examples of cells in a microbiology unit, this resource will leave you thoroughly prepared. As pupils examine the slides that they prepare, they draw...
Northwest High School Science
Metric Conversion: Stair-Step Method
Elevate young scientists' skills with unit conversion using the stair-step method. Detailed instructions and a neat stair-step diagram are on the first page. Four pages of practice problems follow, mostly with real-world applications....
Baylor College
Drugs, Risks and the Nervous System
In cooperative groups, middle schoolers contemplate the probability of 18 different situations occurring. After they make predictions, they compare them to the actual risk factors. This eye-opening exercise demonstrates that the odds of...
Baylor College
Neural Network Signals
Using a simple circuit with the battery representing the brain, future physiologists test to see which solutions conduct electrical "nerve impulses." Enlighten learners with plentiful information on electric signals in the nervous system...
Perkins School for the Blind
The Function of Villi in the Small Intestine
Ever wonder what the villi in the small intestine do? I bet your class would love to find out. Mesh netting is used to represent small blood vessels on the outside of the intestine, and a chenille bath mat is used to represent the villi...
Perkins School for the Blind
Building an Organic Molecule
Glucose is a simple sugar and a molecule that can be illustrated through modeling. Scientific investigators with visual impairments use hands-on models to reconstruct the process of bonding molecules. The tools used in this activity are...
Baylor College
Pre-Assessment: The Brain
Break your class in to the general structure and function of the brain. Brainiacs discuss what they know about it and create personalized brain development timelines. They also take a true-false, pre-assessment quiz to get them thinking...
Baylor College
What Is a Neuron?
Your class won't get on your nerves while doing this modeling activity! After teaching the structure and function of a neuron using the included diagrams, give individuals some clay and chenille stems so that they can make their own...