Kenan Fellows
Reaction Stoichiometry—How Can We Make Chalk?
What is a reasonable percent yield in the manufacturing process? Scholars develop a process for producing chalk in the third lesson of a six-part series. Then, they must determine the theoretical and percent yield. Discussions about...
NASA
Ripening of Fruits and Vegetables
How long do fresh foods last in space at the International Space Station? Which foods perish quicker than others? How can astronauts preserve their foods to make them last longer in space? Young scientists test the rates at which some...
Curated OER
H2O2 Decomposition Lab I
Students conduct an experiment to determine how much hydrogen peroxide (H2O2) is actually in a store-bought solution of H2O2.
Curated OER
Spectrophotometry Lab
Young scholars use a machine called a spectrophotometer to determine how much light is absorbed by certain substances. Students record the absorbance and the % of light transmitted for different color solutions, graph their results, and...
Curated OER
From Polymers to Bioplastics: Looking Toward Finding Renewable Resources
Students investigate the properties of polymers. For this chemistry lesson, students explain the importance of energy sources. They produce a bioplastic from the lab and evaluate its structural integrity.
Curated OER
ISOLATION OF DNA FROM ONION
Students perform a laboratory exercise designed to show how DNA can easily be extracted from onion cells. They conduct an optional test for the presence of DNA using standard lab equipment.
Curated OER
Investigative Case - Living in an Alkaline Environment
Students are shown many ways in which Mono Lake water and distilled water are different. They demonstrate that the survival of common soil bacteria declines as pH increases. Students examine the behaviors, adaptations, energy transfer,...
Curated OER
Identification of Animals by Serum Electrophoresis
Students compare their unknown serum against a set of known serum standards and determine the animal source of their serum. They write a lab report to communicate their results.
Curated OER
Acid Rain
Students investigate the effects of acid rain. The lesson contains a lab background for the teacher to use before the implementation of the lesson. They conduct an experiment to collect data and then report the results of the observations.
Curated OER
Survival Still
Students explain how to desalinate water using solar energy. In this solar instructional activity students complete a lab activity and explain capillary water.
Curated OER
Off Base
Students study La Chatelier's principle and identify how carbon dioxide may affect pH. In this coral lesson students complete a worksheet on pH and observe a lab.
Curated OER
Photosynthesis: Intake of Carbon Dioxide - Production of Oxygen
Students, after a long-term observation of photosynthesis with aquatic plants, assess the benefits of photosynthesis towards all living organisms. They explain in their own words the two cycles within photosynthesis. Guided discussion...
Curated OER
Watch the Screen!
Students explore screening processes for biological activity. In this deep sea lesson students complete a lab activity.
Curated OER
Acid Rain: Where Have All the Rainbows Gone?
Students study the pH scale and sources of acid precipitation. In this acid rain lesson students complete a lab on acid rain then complete a handout.
Curated OER
Molecular Explorations
Students explain the processes for separating DNA from tissue and separating complex mixtures. In this exploratory lesson students complete a lab where they extract DNA.
Curated OER
DETERMINING THE CONCENTRATION OF A SOLUTION: BEER'S LAW
Students determine the concentration of an unknown nickel (II) sulfate solution by using the colorimeter.
Curated OER
Seltzer Breath
Young scholars investigate "indicator" (Bromothymol Blue or BTB) to test for the presence of certain chemicals in liquids and gases. They compare distilled water and seltzer water for presence of carbon dioxide.
Curated OER
ISOLATION OF DNA FROM ONION
Students perform a lab in which they extract DNA from onion cells. Students break through the cell and nuclear membranes and then break down the protein that the DNA is wrapped around.
Curated OER
DNA Isolation
Students use scientific methods to investigate the concept of DNA. They observe the DNA of human cheek cells. This is done with the use of a lab experience. Students record their observations and reflect upon on how each organism is...
Curated OER
How Can You Prevent Spoilage?
Students complete laboratory activity to discover what temperature is most effective in prohibiting bacterial growth in two percent milk. Students then write lab report detailing findings.
Curated OER
Water You Can Use from the Air Conditioner
Students work together to research water quantity, quality and safety standards. They complete a lab to discover how to use the water from an air conditioner. They write a paper to show their findings.
Curated OER
Electroplating for Corrosion Protection: Redox in Action
Learners define what a redox reaction is. In this chemistry activity, students electroplate some wires in the lab. They research the application of electroplating in the real world.
Curated OER
How Soft or Hard is Your Water?
Students test samples of water to determine how a chemical water softener affects water's ability to form suds. After collecting their data and analyzing their results, students answer follow-up questions about their lab.
Curated OER
This Stuff Makes Me Sick
Students participate in a lab showing the effects of pesticides on Lumbriculus variegatus. Several extensions and variations are also included in this lesson including one which relates the experiment to how pesticides enter our drinking...