Curated OER
Using Plant Pigments to Link a Suspect to a Crime
Young scholars use chromatography to separate plant pigments collected from a fictitious crime scene and suspects. They compare the Rf values of the plant pigments to determine whether the plant pigments found on any of the suspects...
Cornell University
The Galvanic Cell Game
Play a little game with your classes! Young scholars expand on their understanding of oxidation/reduction reactions in a game-based activity. They build a Galvanic cell with game pieces while learning about each component and their...
Curated OER
Chemical Resistance and Synthetic Polymers
Students participate in lab activities in which they examine immersion, stain resistance, and stress cracking of synthetic polymers. Students use their collected data to discuss service applications and possible performance of materials.
Curated OER
Using a Controlled Experiment to Identify Two Unknown Plasmids
Student demonstrate knowledge of recombinant DNA techniques (restriction enzyme digest, gel electrophoresis, and staining gel). They demonstrate skills needed to complete a gel electrophoresis and interpret a stained gel. Pupils solve...
Curated OER
# 18 Gas Chromatography: Introduction and Application
Students are introduced to a gas chromatography using a discovery-based approach. They are presented with a scenario/industrial application where their job is to verify that the company's mouthwash contains a specific percentage of...
Curated OER
Designer Colors, an Inquiry Approach to Flame Testing
Students investigate the spectroscopic colors unique to elements, and to use this information to create a specific color. They follow a detailed schematic to produce a spectroscpoe to be used in the testing.
Curated OER
#17 Determining the Accuracy of Selected Laboratory Glassware
Students calculate the volume of a specific mass of water placed in selected pieces of common laboratory glassware, using the density formula. They then determine the accuracy of the volumetric measurement for selected pieces of...
Curated OER
# 14 Experimenting with Copper (II) Solutions
Students determine that the relative concentration of copper ions in water can be determined by a color comparison. They make a copper (II) sulfate solution of a given concentration. Students dilute their initial solutions until their...
Cornell University
Discovering Enzymes
Explore the function of enzymes through a series of lab investigations. Learners use household enzymes such as hydrogen peroxide to model the role of enzymes. The enzymes break down proteins with and without a catalyst.
Cornell University
What Happens When We Excite Atoms and Molecules?
Excited atoms lead to exciting lessons! Learners use heat and light to excite both atoms and molecules. They display their learning in the form of Bohr models depicting the excited state of the atoms.
Curated OER
Simplified Vertical Rebound Testing
Students participate in a lab activity in which they examine a simple energy transformation system. Students test the rebound of elastomers, produce rebound data, and determine the kinetic energy transformed by the impact of a free...
Curated OER
Using Blood-Typing to Determine Causes of Death in Surgery Patients
In this simulation activity, young biologists examine blood types to determine whether the death rate in a hospital was caused because of incorrect identification of patient blood types. You will need obtain and follow the procedures of...
Curated OER
Properties and Perfectly Polymeric Sodas
Students examine physical and chemical properties of plastics, interfaces of plastics, and forms of plastics. In three lab activities, students discover the two characteristic responses of plastics to heating, thermoplastic or...
Curated OER
Lamarck Is Dead!
Students read Lamarck's obituary and respond to questions.Students can work individually or in small groups.This activity can be used at the beginning of an evolution unit.
Curated OER
TESI 04 Lesson Plan
Students write and balance five chemcial equations which have been observed throughout the process of completing the experiment. They use vacuum filtration to recover suspeneded particals from a colloidal suspension. Students correctly...
Curated OER
GM Foods: Are They Safe?
Students examine the process for testing GM foods. They research benefits and hazards of a selection of GM foods. They also create images of new labels and marketing for GM foods.
Curated OER
Cyclic Universe: Worlds Without End
Students compare and contrast the Big Bang Theory and the Cyclic Universe Model. They explain basic properties of the univers which make life possible. They evaluate ideas about the origin of the universe as to their scientific value.
Curated OER
RADIATION PROTECTION: HOW MUCH IS ENOUGH?
Students study the effects of shielding on the amount of detectable radioactivity from a gamma source. They investigate the shielding of one type of metal, then design their own experiments to answer questions raised during the...
Curated OER
Metal Composition & the U.S. Mint
Students study the meaning, symbolism, and value of U.S. coins,
especially the quarter. Theyresearch why in 1965 the U.S. Mint decided to
change the metal composition of the quarter to copper coated with nickel.
In addition, they perform...
Curated OER
The Importance of Water
Students explore the importance of water. They discuss why water is important and students design an experiment that evaluates the water quality and methods of improving water quality. Students perform testing and report their findings.
Curated OER
Lamarck Is Dead!
Students read Lamarck's obituary and respond to questions. They discuss the four laws from Lamarack's studies. Students apply this information to scientific theories in general.
Royal Society of Chemistry
Royal Society of Chemistry: Gridlocks: Level 3
A collection of grid puzzles that cover a wide variety of topics in advanced high school chemistry. These are excellent for topic review and reinforcement. The puzzles can be played online and also downloaded as worksheets. Answers are...
Royal Society of Chemistry
Royal Society of Chemistry: Gridlocks: Level 2
A collection of grid puzzles that cover a wide variety of topics in intermediate high school chemistry. These are excellent for topic review and reinforcement. The puzzles can be played online and also downloaded as worksheets. Answers...
Crescent Public Schools
The Internet Science Room: Chemistry Class Introduction
This introduction to chemistry class reviews some major concepts to help prepare students for a high school chemistry course.