New ReviewThat sour milk in your fridge is a long way from becoming cheese...or is it? The original purpose of making cheese was simply to preserve the nutritional content of milk. Using an informative video from a larger playlist exploring...

Substances that decompose with the help of living organisms do so at different rates. Scholars experiment with Winogradsky columns to determine the rate of decomposition, the oxygen and sulfide content changes, and bacteria levels. The...

Robert Koch and his team of scientists identified the germs that cause diphtheria, typhoid, pneumonia, gonorrhea, meningitis, whooping cough, tetanus, plague, leprosy, syphilis, and more—that's some important work! Over a period of 100...

Some scientists now consider the gut microbiome a distinct organ in the human body. Curious science scholars learn about this ecosystem thriving inside them and its important functions with a video from Our Hungry Planet. The 11th lesson...

Just when you thought you had life figured out ... here comes another great video! Young biologists discover the multi-faceted meaning of life through a video from a comprehensive science playlist. Content includes when life appeared on...

How much do you know about microbes and our understanding of pathogens? A quick 15-question quiz tests a broad range of information related to microbes. The interactive presents a score at the end, providing a great opportunity to review...

Let the lab be a catalyst to learn about enzymes. Scholars create alginate beads filled with yeast. As part of an investigation into enzymes, they see how these beads provide a catalyst to the reaction of glucose into ethanol.

Now you have a new excuse not to do your homework. A long-term experiment has learners explore cellulose-digesting enzymes. They simulate how paper breaks down in a compost bin. There's no need to blame your dog for eating your homework...

You'll never forget the importance of toilet paper and hand washing ever again. Scholars perform an experiment to model the transfer of microbes in the bathroom. They perform three trials to test the transmission of yeast using their...

Take it all the way back! Young scientists discover the changes that took place from the time Earth became solid to present day through an interesting interactive. The resource guides users through key events that have shaped our world...

Join the fight against bacteria. An open investigation shows pupils different aspects of antimicrobial substances, such as disinfectants, deodorants, or plant oils. They design and conduct their own experiments on the effectiveness of...

Sugar isn't good for you, but it's great for microbes. A simple experiment has pupils investigate the digestion of starch by microbes to produce sugars. They apply two bacterial cultures, an amylase solution, and distilled water on a...

Milk the resource for all it's worth. Young biologists perform assay techniques to test the digestion of protein. They place bacterial samples, fungal samples, trypsin solution, and distilled water on a milk-agar plate to see the effects...

Humans are born without any bacteria, yet have acquired the majority of the microbiome expected for adulthood by the age of three. A biology video introduces the human microbiome, and describes when the microbiome begins developing, how...

The United States produces more than a billion pounds of cheese every month. The video, part of the PBS food science series, explains the science of making cheese. It introduces cheese makers and their processes. In addition, it...

Tagging animals, such as elk, is useful for studying their behavior and movements. But, how do you tag bacteria? Biology scholars discover the tiny tags used to collect information about seafloor microbes in a hands-on lab. Groups create...

How safe is the drinking water you have access to? Colors, smells, and other factors may lead you to finding out if your water is safe. Watch a video that explains the ways water becomes filtered and ways to know when water is contaminated.

Small but mighty! Learners explore the role of microbes in a healthy ecosystem. An engaging lesson asks pupils to design an aquaponics system that demonstrates that healthy microbes are necessary to maintain the ecosystem.

To gain an understanding of symbiotic relationships that exhibit nature working together, scholars create slides of three different microorganisms working in symbiotic relationships. Through careful observation, they learn why termites,...

A comprehensive lesson teaches scholars about the contamination effects of water. By testing local water sources for contaminants, young scientists connect the concepts at a personal level.

Scholars harness the power of microbes with an engaging activity that uses yeast to break down sugar in water. Multiple setups of the same experiment lets learners determine which temperature results in the fastest rate of sugar...

Is there such a thing as useful microbes? Get ready to perform experiments on applying microbes for wastewater treatment. The first installment of the three-part unit provides background information to prepare young engineers for two...

To gain an understanding of symbiotic relationships that exhibit nature working together, scholars create slides of three different microorganisms working in symbiotic relationships. Through careful observation, they learn why termites,...

A comprehensive lesson teaches scholars about the contamination effects of water. By testing local water sources for contaminants, young scientists connect the concepts at a personal level.