Nuffield Foundation
Making Serial Dilutions
There's no need to water down the resource. A tutorial takes learners through the process of creating dilutions for any solution. Specifically, it focuses on serial dilutions with successive factors of 10.
Curated OER
Serial Dilutions Made Easy
High schoolers improve their skills and comprehend the particular application for which serial dilutions are a tool. Serial dilutions are often used in microbiology, biotechnology, and in chemistry classes, to name just a few.
Pingry School
Acid-Base Indicators
Acid-base indicators are an essential part of any chemistry classroom. Individuals explore the color-changing feature of the important indicators in a vibrant hands-on activity. Using serial dilution, learners create solutions ranging...
Curated OER
Parts Per Million
Students perform serial dilution of food coloring experiment with partner, examine concentration levels, and differentiate parts per million (PPM) and parts per billion (PPB). Students complete pre-lab and post-lab questions and data table.
Curated OER
pH Lab
In this pH worksheet, students experiment with dilutions of acidic solutions to test for the pH using cabbage as an indicator. They then test a variety of substances for pH. On day two of the lab, they test conductivity of solutions and...
Curated OER
Effects of Water Pollution on Aquatic Organisms
Learners investigate water pollution. They develop an understanding of the behavior of organisms, of the structure and properties of matter, and of natural and human induced hazards by conducting lab tests. They present their data...
Curated OER
Serial Dilution of CuSO4 and Changing the Value of Paint
High schoolers relate solution concentration and saturation to color and compare methods of changing value and color intensity with paint solutions.
Curated OER
Calculating Parts per Million: Do We Have a Problem Here?
Students calculate ppm and ppb by using unit analysis when given a ratio of amounts.
They determine in ppm what constitutes a health risk for a particular toxin given data
and whether local health officials should close a lake...
Nuffield Foundation
No Stomach for It: Investigating Antacid Medication
You won't get a stomachache doing an investigative experiment. Pupils simulate the effect of antacids on stomach acid. Obviously, they won't be using real stomach acid; diluted hydrochloric acid serves this purpose.
Curated OER
Acid-Base Indicators
The first two pages provide a chart to complete with results of a lab test using different solutions and indicators. The data analysis questions will help your students understand the concentrations of the solutions and how they affect...
Chicago Botanic Garden
Are Global CO2 Levels Changing?
According to the Mauna Loa observatory, carbon dioxide levels increased by 3 ppm in our atmosphere between 2015–2016. Individuals analyze carbon dioxide data from around the world and then share this with a home group in lesson three of...
National Nanotechnology Infrastructure Network
The Effects of Gold and Silver Nanoparticles on Brine Shrimp: A Toxicology Study
Who doesn't love gold and silver? Brine shrimp, that's who! Learners conduct an experimental lesson to monitor the toxicity of gold and silver nanoparticles on brine shrimp. They synthesize solutions to expose the brine shrimp to and...
Curated OER
Acid-base Indicators
There is a chart to complete with results of the titrations for the 14 different pH indicators. There are also nine questions for data analysis, and then four problems requiring equations, molarities, and pH values.
Curated OER
Generate a Calibration Curve for Chlorophyll a
Students measure and graph the absorbance of light by chlorophyll at a specific wavelength versus chlorophyll concentration. They are given an unknown and determine its concentration from their calibration curve. Students become familiar...
Curated OER
Operation Mexfly
Learners research information about pesticides. Students discuss the history of the Mexican fruit fly. They experiment to discover malathion concentration levels in organisms. Learners explore the effect of toxins at the top of the...
Curated OER
Microbial Spoilers: The Impact of Microorganisms on the Shelf-life of Milk
Learners are inroduced to a commonly used microbial culturing technique. They explore the role of microorganisms in determining the shelf-life of food products.
Curated OER
Lights On - We Have A Quorum
Young scholars explore basic bacteriological techniques. They investigate cell to cell communication and become aware of the environmental and evolutionary implications of this communication.