Curated OER
The Scientific Method
Students connect the scientific method to real world situations. For this scientific method lesson, students discuss the work of Dr. Renshaw in making a diagnosis and connected to the scientific method. Students view a website...
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Sedimentation Lab Activity
Students predict how sediments in a water column will settle. In this earth science lesson, students examine the layers of sedimentation. Students are given sediments to place into a column of water and observe how they settle....
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Lab Safety
Learners investigate the concept of lab safety using a variety of different activities. The equipment necessary is covered. They draw the different types of lab tools using a graphic organizer.
Big Learning
The Antarctica Project: A Middle School Mathematics Unit
Antarctica is a big place, large enough to provide ample opportunities to learn about math. A two-week unit teaches middle school mathematics concepts using project-based learning. The resource covers functions, geometry (area,...
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Introduction to Measuring the Forest
Students investigate how much wood is in a forest. In this forestry lesson, students calculate how much usable wood comes from the forest. They will read, Sizing Things Up from Trees + Me = Forestry, measure firewood piles, and create a...
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Introduction To Cell Structure and Function: What's Inside a Cell?
Tenth graders are introduced to the cell and some of its parts. Through the use of video, 10th graders see animal and plants cells and their parts. They learn terms used to explain the cell.
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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 Thiokoll® (Polysulfide Rubber)
This lab activity is geared toward experienced chemistry learners, in particular, those who are familiar with organic chemistry. They will create a synthetic elastomer and then make observations and measurements of its different...
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Dental Chemistry Analogy
After taking in background information on teeth, marble, eggshell, and fluoride, chemistry aces design an experiment. Their goal is to demonstrate whether or not fluoride has a similar effect on marble or eggshell as it does on tooth...
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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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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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Pharmaceuticals and Treatments
Students 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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Real-World Projects: Challenges from the Polymer Industry
Two scenarios are presented for chemistry detectives to decipher. Both require the use of an infrared spectrometer and focus on the examination of polymer materials. In the first, lumps in polyethylene bottles are analyzed. In the...
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Chromatographic Separation of Methylene Blue and Sodium Fluorescein
Students determine the best solvent system for separating a methylene blue/sodium fluorescein mixture by thin layer chromatography. They conduct an initial TLC separation using ethanol and a different solvent mixture and analyze the data...
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2006 U.S. National Chemistry Olympiad Part III
In this chemistry Olympiad lab worksheet, learners are given two lab problems to design experiments. Topics include determining the mass percentage of a given compound and determining an unknown metal using quantitative and qualitative...
Creative Chemistry
What is the Percentage of Copper in "Copper" Coins?
Whether in the UK or the US, the mass of the copper in a copper alloy penny can be determined. If you are in the US, note that on the lab sheet, a penny is identified as a "1p piece." The penny is dissolved by young chemists in nitric...
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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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Designing a Real Life Ecosystem!
Students research abiotic and biotic factors concerning the concept of an ecosystem. Record and analyze data collected. Write a lab report in proper and scientific format with thinking and analytical skills. Work as a cooperative team.
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The Great Cafeteria Caper
Students extract DNA from their own hair roots. They run an electrophoresis gel to examine patterns of their DNA along with standard DNA. The experiment is based on a crime scene scenario.
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2002 U.S. National Chemistry Olympiad National Exam - Part III
Two laboratory problems are put forth for chemistry students. They are to plan and carry out an experiment that will answer each of the questions. The first asks them to investigate a relationship between the surface area of a potato and...
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Tutti Frutti
Get some competition going in your life science class. Give lab groups a variety of plant parts, all of them fruits, except one. Their mission is to make observations, compare and contrast, in order to be the first to identify the...
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Glass Transition in a Rubber Ball
Students illustrate the changes in the properties of a material at its glass transition point. They gather data which they use to construct graphs regarding elastic modules versus absorption modulus, tangent delta, and the effect of...
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Celebrating 100 Years of Flight
Participate in the 100th anniversary of the first flight. In groups, learners use the internet to research the roles the Wright Brothers and Amelia Earhart played in promoting the use of flight. They use the information to write and...
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Hand Lotion Analysis
Students prepare a sample of a commercial hand lotion for analysis by HPLC to determine the percent composition of two common cosmetic preservatives, methylparaben and propylparaben. They perform the analysis and the data is evaluated to...