Curated OER
Aluminum Adventure
Chemistry aces use an electrochemical cell to anodize a strip of aluminum. They apply an organic dye to it. In a practical application, they design a piece of jewelry out of the anodized metal and describe the process. Thorough notes...
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Programming the "Rinse Robot"
Experienced chemistry technicians use then layer chromatography to discover how much of a free compound is left after each rinse cycle. Where this could obviously be used as a practice with chromatography technique, it can also be used...
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The Influence of Initiator Concentration on the Molecular Weight of Polystyrene
This in-depth organic chemistry lab walks learners through an investigation of the effect of initiator concentration on the resulting molecular weight of polystyrene. It is important that you use this lesson with experienced chemistry...
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Condensation Polymerization: Preparation of Two Types of Polyesters
College-level or AP chemists use phthalic anhydride to synthesize two different polyesters, one linear and one cross-linked in structure. A detailed materials list and well-written procedures are provided on a lab sheet. Learners write...
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AP: Chapter 18: Microbial Models
AP biology and college microbiology classes benefit by completing this seven-page worksheet on microbes. An exhaustive set of questions addresses the characteristics and reproduction of viruses, classification and uses of bacteria, and...
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Investigating Osmosis
A thorough investigation of cell transport is provided when completing the assignment. The first half requires biology class members to answer questions about diffusion and osmosis with the aid of diagrams. Then they fashion an...
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Alcoholic Fermentation in Yeast
Biology classes will bubble with excitement as they complete this assignment. Beginning with an informative overview of cellular respiration and fermentation processes, the highlight comes as an experiment in determining the rate of...
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Diffusion across a Selectively Permeable Membrane
Lab groups fill a section of dialysis tubing with glucose and starch solutions and suspend it in a water bath. They use iodine as a starch indicator and a glucose test strip to find out if either of the materials crossed the selectively...
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Dragon Genetics ~ Independent Assortment and Genetic Linkage
Imagine a pair of dragons that produce offspring. What percentage of the hatchlings have wings and large antlers? An engaging activity draws genetics learners in, introduces them to alleles, meiosis, phenotypes, genotypes, and teaches...
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Pharmaceuticals and Treatments
Learners perform an experiment involving reverse transcriptase-polymerized chain reaction HIV replication to better examine the biotechnology used by scientists in pharmaceutical research of infections diseases like HIV. Students examine...
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Guess Who Came to Dinner!
An exceptionally creative approach is taken to assessing your biologists' grasp of natural selection concepts. They are to imagine hosting Charles Darwin for dinner and having, to their surpise, a few other noted scientists crash the...
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Raven Chapter 35 Guided Notes: Plant Form
The ups and downs of plant vascular tissue are described by your beginning botanists as they complete this worksheet. Xylem and phloem are defined and identified on actual color photographs. Functions of the different types of meristem...
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The Flower and the Fly
It's like a biological "Beauty and the Beast!" The fascinating mutualism between a South African meganosed fly and a deep-throated geranium builds a case study in coevolution for your biology buffs to analyze. After reading about this...
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AP: Chapter 38: Plant Reproduction
Short, but sweet, this handout questions the learner on the structures and processes of plant reproduction. Budding botanists draw a dicot seed, label a flower diagram, and describe the functions of different flower parts. It also covers...
Howard Hughes Medical Institute
Microarrays and Stem Cells
Background reading is available in the first two pages of this activity, along with reading comprehension questions and a laboratory activity in which students use mircroarray technology to identify genes used in cell differentiation....
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Qualitative Examples of Conservation of Mechanical Energy
Instructions for series of six activites, a reading of scientific literature, and a choice of six assessments await you in this physics resource. Well-written plans guide you in guiding your pupils to experiment with levers, pulleys,...
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AP: Chapter 9: Respiration - Extra Credit 1
Don't just use this as an extra credit assignment! The two scenarios on this handout give microbiology hopefuls an opportunity to practice critical-thinking skills. They apply their knowledge of cellular respiration and the products of...
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Measures of Circular Motion
Physicists become Olympians in a competition using centripetal force. They ride a bicycle to comprehend relationships between linear and rotational motion. If you have an old-fashioned record player, it can be used to help pupils...
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Qualitative Aspects of Rotational Dynamics
Explanations for six different physics lab activities and five suggested assessments are contained in this resource by the National Science Teachers Association. Any combination can be used to open learners' eyes to rotational motion....
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AP: Chapter 17: From Gene to Protein
Biology learners describe the metabolic pathways and the transcription and translation of genetic information. They will party on the last page as they trace the flow of information through a large and colorful diagram.
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AP: Chapter 42: Circulation & Gas Exchange
Immerse biology learners in circulation and gas exchange for both simple organisms and higher animals. Six pages of short-answer questions and labelling of the human respiratory system are included. This assignment was written for an...
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It's All About Vitamins
The fascinating topic of human skin color is examined in this article from Muse magazine. It highlights a study done by a pair of scientists on the relationships among strength of sunlight, vitamins, and melanin in the skin. The results...
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2001 U.S. National Chemistry Olympiad Part I
Sixty multiple-choice questions test on a variety of first year chemistry subjects. In order to succeed, exam takers must be competent with properties of elements, stoichiometry problems, gas laws, bond dissociation, and types of...
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Fall 2005 Midterm Exam #1
You've got the power! With this physics midterm, you have the power to assess learners' grasp of electricity concepts. The exam is neatly formatted and provides a variety of question types: true or false, multiple choice, and problem...