Using comprehensive, curriculum-based investigations, your students will learn about the metric system, mass, volume, density, gravity, temperature and pH. Through these activities, the class gains a thorough understanding of how to gather information, graph and analyze data, and interpret scientific diagrams. Grades 7-10.
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.
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.
Two commonly used drugs, aspirin and antacids, will be analyzed separately. After investigating samples included in kit, students can select brands of their own choice for additional comparison. Grades 9-12.
Build 3-D models of molecules! Each atom center is designed to accept bonds at the proper angle which gives the appearance of molecular bonding. Molecular sets are easily constructed using the plastic components. 12 sets each: 2 black tetrahedral carbon centers 2 Blue tetrahedral nitrogen centers 6 Green univalent chlorine centers 4 Red diunivalent oxygen centers 1 Yellow diunivalent sulfur center 8 White univalent hydrogen centers 20 Plastic bond connectors 4 Flexible connectors Teacher's Guide and reproducible student worksheet are included.
This kit is a unique teaching tool for introducing your students to the chemistry behind plant pigments (the blueberry biopigment cyanidan) and how they can be used as pH indicators and fabric dyes. They use their knowledge to create their own pH test strips and evaluate them against a commercial type. Includes materials for four detailed activities featuring "model" and "inquiry" investigation paths – a total of 11 investigational activities, which can accommodate up to 40 students! Also contains a DVD with PDF Teacher and Student Guides and other digital content (see below). Covered concepts include: data analysis, accuracy vs. precision, biopigment structure, pH, pH scale, pH indicators, stains and dyes, acids, bases, acid-base interactions, solutions, and self ionization of water. STEM based curriculum kits accent the scientific method and independent inquiry featuring hands-on learning materials and exciting interactive digital content that can be accessed on a computer, tablet or your mobile device. Kits contain structured, guided, and open investigations, at introductory, intermediate, and advanced levels, to make inquiry based learning affordable and fun. Requires additional household materials for independent investigations. Student activity PDFs have a special Typewriter functionality allowing them to take notes, record experimental data, and answer analysis questions. They simply e-mail their worksheets back to you!
This kit is a unique teaching tool for introducing your students to the chemistry behind plant pigments (the blueberry biopigment cyanidan) and how they can be used as pH indicators and fabric dyes. They use their knowledge to create their own pH test strips and evaluate them against a commercial type. Includes materials for four detailed activities featuring "model" and "inquiry" investigation paths – a total of 11 investigational activities, which can accommodate up to 40 students! Also contains a DVD with PDF Teacher and Student Guides and other digital content (see below). Covered concepts include: data analysis, accuracy vs. precision, biopigment structure, pH, pH scale, pH indicators, stains and dyes, acids, bases, acid-base interactions, solutions, and self ionization of water. STEM based curriculum kits accent the scientific method and independent inquiry featuring hands-on learning materials and exciting interactive digital content that can be accessed on a computer, tablet or your mobile device. Kits contain structured, guided, and open investigations, at introductory, intermediate, and advanced levels, to make inquiry based learning affordable and fun. Requires additional household materials for independent investigations. Student activity PDFs have a special Typewriter functionality allowing them to take notes, record experimental data, and answer analysis questions. They simply e-mail their worksheets back to you!
An investigative study into the chemical nature of commercial shampoos. The student can perform the following experiments: pH determination; solid content determination; determination of flash foam formation; determination of foam retention time; determination of relative viscosity; India Ink dispersion test and determination of cost per 5 ml of shampoo. Each kit provides materials for 12 pairs of students. Grades 8-12.
Specifically designed to dramatically and vividly show the classroom a pollutant in water, this kit is designed to permit students the opportunity of determining the presence of animal waste by seeing a dramatic color change that occurs in a lactose broth, students can determine if E coli are present. Grades 7-12.
Observe the effects of 3 doses of gamma irradiation on seeds and compare with control seeds. Rye grass and mung bean seeds have a short germination period, so students can see the effects within 48 hours and the experiment can be completed within 2 weeks. Kit contains enough for 30 students to work individually.
Learn concepts of air pollution and its harmful effects using one form of a common air pollutant, sulfur dioxide on experiments with plant life. This kit provides instruction, apparatus and materials to experiment with plant seedlings exposed to a sulfur dioxide atmosphere at a known concentration which produces an effect on plant life that can easily be observed within several days.
Proper dissolved oxygen levels are essential for aquatic ecosystems. A dissolved oxygen level of 5 mg/L or greater will support healthy growth of most fish species. Other applications include monitoring in waste water treatment plants, determination of BOD and COD. This test kit uses an adaptation of the Winkler method to determine dissolved oxygen. Includes 100 tests.