Curated OER
Redistricting: Drawing the Lines
Difficult redistricting concepts are covered in a context that will make it understandable to your government scholars. They begin with a KWL on the term redistricting and then watch a video to answer some questions. They analyze...
Curated OER
Is the Hudson River Too Salty to Drink?
Students explore reasons for varied salinity in bodies of water. In this geographical inquiry lesson, students use a variety of visual and written information including maps, data tables, and graphs, to form a hypothesis as to why the...
Curated OER
Solutions
In this solutions learning exercise, students answer 18 questions about solutions, saturation of solutions, solvents and solubility.
Curated OER
Reactions in Aqueous Solutions
In this solutions learning exercise, students calculate the molarity and solubility for given reactions. Students work on dilution, precipitation, and titration reactions. This learning exercise has 15 problems to solve.
Curated OER
Calculating Parts per Million: Do We Have a Problem Here?
Learners 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...
Curated OER
Is Dilution the Solution To Pollution?
Students demonstrate the meaning of dilution and concentration and how pollution can affect the water that you drink. They perform an experiment to calculate the final concentration and dilution factor of solutions. They record the color...
Curated OER
Bacterial Movement Through Water Part 2- Dilution/Powers of Ten
Students make dilutions using dulution trays. They keep track of their dilutions and the concentrations of solute, to parts per million (ppm) and parts per billion (ppb), in order to have an comprehension of the terms. Students make...
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
One in a Million
Learners participate in an experiment to demonstrate how a substance can have different concentrations in a solution. Students record observations on a dilution chart and determine the concentations of various parts per million.
Curated OER
Is Dilution the Solution to Pollution?
Students explore the different types of pollution. they conduct experiments using dye mixed with tap water to measure the levels of dilution. They discuss at what point the dye (pollution) would be diluted enough to be safe to drink.