Investigating Hatching of Brine Shrimp Eggs
Carolina LabSheets™ Overview In this lab students study the hatching of brine shrimp eggs and design an experiment to see what factors influence hatching. Brine shrimp, genus Artemia, are found in saline lakes on all continents except Antarctica. They tolerate a wide range of salt concentrations. Brine shrimp produce two different types of eggs. In […]
Introduction to Protists: Amoeba
Carolina LabSheets™ Overview In this lab, students will observe Amoeba proteus as an example of an animal-like protist. Traditionally, amoebas were classified under Domain Eukarya, Kingdom Protista, and Phylum Amoebozoa. However, it is widely recognized that Protista is not a natural grouping. Amoebozoa are more closely related to fungi and animals than they are to […]
Substances with a Hazardous Nature but May Have Potential Educational Utility
These chemicals should be removed from the schools if alternatives can be used. For those that must be retained, amounts should be kept to a minimum. These are appropriate for advanced-level High School classes only. This following list was generated from the Manual of Safety and Health Hazards in the School Science Laboratory published by […]
Substances with Greater Hazardous Nature Than Educational Utility
Chemicals used in the laboratory may be hazardous because of the following: Safety risks (i.e., highly flammable or explosive material) Acute and chronic health hazards Environmental harm Impairment of indoor air quality Assessment of the chemicals in this list indicates that their hazardous nature is greater than their potential usefulness in many school programs. Evaluation […]
Smithsonian Science for the Classroom™ Curriculum Receives Coveted All-Green Rating from Nonprofit Reviewer EdReports
BURLINGTON, NC, April 30, 2024 – The Smithsonian Science Education Center (SSEC) and leading school science supplier Carolina Biological Supply Company announced that their elementary science curriculum received an all-green rating from EdReports. Smithsonian Science for the Classroom,™ Second Edition, for grades K to 2, received all-green ratings from nonprofit EdReports. The print, digital and hands-on elementary STEM curriculum […]
Protists: Key to Algae Mixtures
Carolina LabSheets™ Overview In this lab activity students use a simple dichotomous key to identify several genera of algae contained in our algae mixtures. The key avoids the use of highly technical terms so that even beginning students can use it. Student Lab Sheet Key to Algae Mixtures Needed Materials Algae Mixture (see recommendations below) […]
Bacterial Growth on MacConkey Agar
Carolina LabSheets™ Overview In this lab studentsculture three bacteria on nutrient agar and MacConkey agar and record the results. Nutrient agar is nonselective, meaning that it supports the growth of a broad range of bacteria. MacConkey agar inhibits the growth of Gram-positive bacteria and is thus a selective medium. MacConkey agar is also a differential […]
Testing for Segregation of Alleles
Carolina LabSheets™ Overview In this lab, students test corn pollen for evidence of the segregation of alleles. The gene locus is waxy endosperm on chromosome 9. Students should be familiar with the iodine test for starch before performing this lab. Download Student Lab Sheet Needed Materials Starchy: Waxy Pollen (177010) for up to 25 students […]
Two-Point Linkage with Drosophila
Carolina LabSheets™ Overview In this lab students explore the genetic consequences of gene linkage using an F1 cross of Drosophila. 172050 Two-Point Linkage:The vial of F1 flies is from a cross between females having yellow bodies and white eyes (172290 yellow white) and wild-type males having gray bodies and red eyes (172100 wild type). Yellow […]
Vinegar Eels
Carolina LabSheets™ Overview In this lab, students observe vinegar eels. These small animals, barely visible without magnification, are found in unpasteurized cider vinegar, where they feed on the bacteria responsible for the conversion of apples to vinegar. Vinegar eels, Turbatrix aceti or Anguillula aceti (Muller, 1783), are examples of roundworms, or nematodes.. Download Student Lab […]