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. Carolina provides owl pellet products that are heat sterilized and easy to use for students of all ages. Excellent for hands-on, inquiry-based learning. For over 80 years, Carolina has provided superior non-mammal specimens that engage students in hands-on dissecting experiments. K—8 inquiry-based, hands-on science curriculum that paves the way to deep understanding of phenomena through 3-dimensional learning.
Moving to NGSS? Teaching NGSS is more than checking off standards. Thank you for your continued use of the STC Program. Keep your classroom alive with activities, information, and help in biology, biotechnology, botany, genetics, and more. Make your classroom electrifying with activities and information spanning chemistry and physics content.
Everything from equilibrium to electricity and reactions to rocketry at your fingertips. Mine activities, information, and helpful hints for ESS. In a simple staining technique, a positively charged stain colors the negatively charged cells, making them stand out against the light background. In a negative staining technique, a negatively charged stain colors the background, leaving the cells light colored and unstained.
We use nigrosin as our negative stain. This means that the stain readily gives up a hydrogen ion and becomes negatively charged. Since the surface of most bacterial cells is negatively charged, the cell surface repels the stain. The glass of the slide will stain, but the bacterial cells will not. In staining dyes, nigrosin CI , Solvent black 5 is a mixture of black synthetic dyes made by heating a mixture of nitrobenzene, aniline, and hydrochloric acid in the presence of copper or iron.
Negative, anionic, or acidic dyes: contain functional groups that have a negative charge. Examples include eosin, nigrosin and Congo red.
These dyes are repelled by the negatively charged surface of bacterial cells. Thus, they stain the background, leaving the bacterial cells clear and bright against a dark background.
Begin typing your search term above and press enter to search. Press ESC to cancel. Skip to content Home Social studies Why should you use a new piece of lens paper each time you clean the lenses? Social studies. Ben Davis September 14, Why should you use a new piece of lens paper each time you clean the lenses? Why is it not a good idea to place your microscope at least 10 cm from the edge of the table?
What does lens paper do and when would you use it? What is the only type of paper that should touch a lens? What happens to your image if you try to magnify it using 40X or x? What are the advantages of using a wet mount? What is the primary purpose of a wet mount? What precautions should be taken when preparing a wet mount? Why is it important to put a coverslip on a wet mount? What is the disadvantage in preparing a wet mount?
What is the hanging drop method used for? Suitable for Cameras, microscopes, telescopes, and more. Papers measure 4" x 6" inches in a book of 50 sheets. Kleensite Optical Lens Wipes feature soft, dust free tissues that will not scratch glass. Gently removes dirt and dust from microscope, telescope, and camera lenses, eyeglasses, cell phones and more. Maintains strength when wet and pairs well with liquid lens cleaners. Book of 50, 4" x 6" sheets. Made in USA.
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