What makes up a popcorn kernel

How big are the flakes this time? Repeat these three steps but this time use the 20 popcorn kernels that you had previously heated in the oven.

How do they look after two minutes of popping? Are there any unpopped kernels? Do you notice any size or color differences compared with the other popcorn? If there are differences, why do you think this is the case?

Take the three small cylindrical glasses and fill each one with a different batch of your 20 popped popcorn kernels regular, cracked and preheated. They should each contain the same amount of popped kernels. Place them next to one another so you can assess the different volumes of the popcorn flakes.

Are all the glasses filled up to the same height? Which popcorn kernels expanded the most? Which were the smallest? Can you explain the differences? Finally, you can sample the popcorn from each of your piles. Which popcorn tastes the best? Is one more chewy or crisp than the other?

Extra: Test to find the ideal popcorn popping temperature. Set your oven to — degrees C — degrees F and put a heat-resistant bowl with a lid with 20 regular popcorn kernels inside. Swirl the bowl occasionally and wait long enough so that the popcorn starts popping.

After the popping slows down and stops take the bowl out of the oven using the mitts and count the popped kernels. Did all of the kernels pop? Repeat the same experiment but this time set the oven to about degrees C degrees F. Wait exactly as long as it took to pop the kernels at — degrees C then take the popcorn out of the oven. How many kernels popped at the lower temperature? What can you infer from your results about the optimal popping temperature?

Extra: In addition to preheating the popcorn kernels, take another 20 kernels and soak them in water for a few hours, then dry them afterward. Because the kernels will take up some water during the soaking you will increase the percentage of water inside the kernel. Repeat the popping process with these kernels. Will they pop at all? How many of them pop compared with the other popcorn kernels? Extra: Ideal popcorn kernels contain about 14 percent water. You can estimate how much water is in your kernels by weighing them plus oil and pot before popping and afterward.

From the difference in weight you can calculate the amount of water that has been lost as steam during the popping process. Our Story. Our Recipes. Ask Poppy. Power Pops. Media Resources. October is Popcorn Poppin' Month. What Makes Popcorn Pop? Carolina offers the highest quality kits for a hands-on approach within AP Chemistry classrooms. We provide products designed for the new and old curriculum.

Enhance the science experience with Carolina's lab kits designed specifically for college-level distance education. Interactive, engaging and elementary age appropriate.

Quality digital science resources and outstanding support for STEM concpets. Stale lesson plans? Try a fresh approach with these interactive and engaging lessons.

Make difficult concepts easy to learn! Stimulating digital resorces for the high school classroom. Carolina is proud to offer one of the most extensive lines of lab supplies and equipment in the industry. Quality selection of science lab glassware designed to address accuracy and safety. Affordable price with superior performance. We offer a full range of dissecting equipment to fit all your lab needs.

There are sets available for all skill levels or can be customized. Carolina is your quality source for a well-equipped lab. Take time to view our high quality science lab equipment that has proven durability to handle any lab activity.

Carolina covers the world of life science with everything from slides and kits to Agricultural and Vet Science. We have kits for new and traditional AP Biology labs. Choose from our kits, follow a college board lab, or design your own with our wide variety of equipment and supplies. Prepare your students for medical and lab tech careers with Carolina's wide range of equipment, kits and models. Carolina offers a variety of resources and products to help your students delve into the emerging area of Genetics.

For over 80 years, Carolina has been providing the highest-quality living organisms and cultures available. Our butterflies can be purchased at every stage to help demonstrate their beautiful life cycle to students. Vast selection of ready to use biological media to meet diverse needs. In stock and ready to ship! Carolina plants are a great tool for teaching cell respiration and photosynthesis. Selection includes aquatic and classroom plants. Carolina's extensive assortment of compound and stereomicroscopes span virtually all grade levels and applications.

Popular corded compound microscopes and cordless microscopes for elementary to advanced use. We have the compound microscope you are looking for! Digital microscopes are great for large classroom computer combined instruction. Students can take images, videos, and more. Stereomicroscopes show 3D images vs. They are great for first tme student use.

Get your students inspired with high school physical science kits, robotics, Carolina ChemKits, and much more. Teach long term earth changes in real time and study the atmosphere, weather and climate and their impact on sustaining life. One stop for all your classical mechanics science and energy education needs.

Exciting activities that make science active and fun! Carolina has the best specimens available, along with dissecting supplies, instruments, and much more. Carolina's Perfect Solution specimens are a safe, non-toxic alternative to Formalin. Carolina's innovative, proprietary tissue fixative produces superior specimens with life-like tissue texture and color. Improper heating can also cause failure to pop. Corn pops best in dry heat produced by air or oil.

This type of heat surrounds the kernel and heats it evenly and quickly. Heating the corn too slowly or at temperatures that are too low may not create enough pressure within the kernel for it to pop. Heating the corn unevenly or too slowly may cause the hull to rupture in one spot before the entire kernel is hot enough to expand, leaving an unpopped and probably burned kernel. Actively scan device characteristics for identification.

Use precise geolocation data. Select personalised content. Create a personalised content profile. Measure ad performance. Select basic ads. Create a personalised ads profile.