Set includes: letter "e", w.m.; animal hairs, w.m.; natural fibers, w.m./ synthetic fibers, w.m.; bacteria types, sm.; pollen grains, w.m.; Starch grains, w.m.; trichina, w.m; cornea of insect eye, sec.; body louse, w.m.; cat flea, w.m.; butterfly wing to show scales, w.m.; Mosquito larvae, w.m.; Mosquito head, w.m.; Fly leg, w.m.; Honeybee wings, w. m.; Honeybee sting, and poison sac, w.m.; feather, w.m.; Paramecium. w.m.; human blood, sm.; Yeast budding, sm.; plant hairs, w.m.; Corn stem, c.s.; Basswood stem, c.s.; Starfish eggs in cleavage, w.m.
Set includes: letter "e", w.m.; animal hairs, w.m.; natural fibers, w.m./ synthetic fibers, w.m.; bacteria types, sm.; pollen grains, w.m.; Starch grains, w.m.; trichina, w.m; cornea of insect eye, sec.; body louse, w.m.; cat flea, w.m.; butterfly wing to show scales, w.m.; Mosquito larvae, w.m.; Mosquito head, w.m.; Fly leg, w.m.; Honeybee wings, w. m.; Honeybee sting, and poison sac, w.m.; feather, w.m.; Paramecium. w.m.; human blood, sm.; Yeast budding, sm.; plant hairs, w.m.; Corn stem, c.s.; Basswood stem, c.s.; Starfish eggs in cleavage, w.m.
Learn about the backbone and body structure of reptiles. Sealed in resin, making it easy to observe, handle, and store. 5.3" x 3.5" x 0.9". Weight: 0.8 lbs.
Watch how solids settle in layers at the bottom of a tank. Includes: Acrylics tank, slope, open tube, plastic drain tube and sprinkler head for plastic bottle. Dimensions: Tank - 11.8" x 2.8" x 5.9", Slope - 11.2" x 2.5" x 0.79", Open tube - 13" x 2.5" x 3.1", Plastic drain tube - 3.9"
Introduce your students to the world of minerals. Provide your class with a hands-on lesson in the formation and characteristics of minerals. Using the set of specimens provided, the students observe the distinct characteristics of minerals and perform a variety of tests to classify them with respect to hardness, streaking, color, luster, specific gravity and reaction to acids. They'll also grow their own microcrystals to understand how crystals form beneath the earth's surface and what environmental conditions are required. Your students will identify minerals based upon their physical properties. Determine the hardness of common minerals using Mohs scale of hardness. Examine the crystalline structure of minerals. Calculate the specific gravity of mineral samples. Predict the reaction of specific minerals to hydrochloric acid. Investigate how crystals form from liquids. Class Size: 40 Students. Grades: 7-10.
Introduces students to the value of food, its chemical substance and teaches the nature of food stuffs. Experiments: starch test, sugar test, lipids (fat) test, protein test, vitamin C test. Contains: iodine potassium iodide solution, biuret solution, vegetable oil, sudan IV solution. Benedicts mixture A, benedicts B, starch, glucose, absorbic acid, indophenol, protein, test tubes, droppers, instructions and background materials. Grades 5-9.
Your students will become junior detectives, honing their forensic skills by solving the mysteries surrounding a fictitious "crime scenario". They'll conduct a series of forensic analysis activities to determine if a crime has been committed. Each activity is centered around a particular analysis technique to include toxicology, chromatography, finger printing, document analysis and simulated blood typing.
Visualize the potential contamination of groundwater. Construct mini-groundwater simulation models showing the movement of a simulated, colored pollutant. Determine under what conditions contamination occurs from a variety of sources such as spill, farms, and buried tanks and how polluted groundwater eventually reaches the drinking water supply. In the process, students learn about the water cycle, water quality, ppm and ppb pollutant contamination, porosity of soils, and other related concepts. Grades 6-10.
Observe the use of microbes for oil degradation. Model various spill scenarios and monitor the effectiveness of the provided freeze-dried oil-degrading microbe mixture in remediating the waste. Set up a simulated oil spill in water and treat it with the special microbial product to observe the physical changes degradation of oil film over time. Additionally, they simulate three spill scenarios on beach sand, gravel and cobbles in order to observe the difference in degradation rates. The class also explores bioremediation methods for other waste chemicals and compares their effectiveness to traditional clean-up methods. Grades 7-10.