Beyond Benign
PPM
The 15th lesson in the series of 24 helps your classes understand the ppm (part per million) unit of measure. First, scholars experiment with food coloring to determine concentrations before applying their findings to calculate...
Curated OER
Parts-Per-Million Concentration Lab
Students develop a comprehension of parts per million as a concept. They work in teams to create successive dilutions of a solution to reach a parts-per-million concentration. Students list what they think the atmosphere is made of. They...
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Measuring Quantities of Gases Activity
Learners use a pipette to mix small amounts of food coloring into water. They visualize the small quantities of parts per million and parts per billion. Contrary to the title, the activity is about liquid amounts rather than gas amounts....
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
Finding Concentration
In this determining concentration worksheet, learners are given the equations to find the concentration of a solution in grams per milliliter, to determine the concentration in parts per million, to determine percent mass and percent...
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How Small is It?
Learners better understand what a concentration of one part per million means through activities. Students discuss "Maximum Contaminant Level" of a toxic in the water. They measure the classroom to find out how many cubic centimeter...
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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
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...
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Is It Safe To Go In?
Students examine acceptable levels of toxins in swimming areas. Working in groups of four, students dilute a salt or sugar solution to 1 part per 1,000,000 (ppm) solution. Students taste test their diluted liquids and record at which...
Curated OER
Industrialization, Chemicals and Human Health - Math
Students review the units of the metric system, and practice estimating measures before actually converting between the two systems of measurement. They participate in activities to visualize a concentration of one part per million....
Texas State Energy Conservation Office
Investigation: Is Dilution the Solution?
Systematically diluting a full-strength sample of food coloring is meant to help earth scientists understand concentration in parts per million. While they will enjoy the lab exercise, it might be a challenge to help them relate it to...
Curated OER
The Numbers Game
Students examine how to calculate the part-per-million and part-per-billion units used to measure contaminant concentrations in the environment. They calculate ratios, take a quiz, analyze a sample chemical spill, and determine if...
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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.
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Fertilizers, Pesticides and Health
Pupils apply real data to create and calculate algebraic equations. Students create a visual to represent the concentration for one part per million and apply unit analysis to verify measurement computations. Pupils define the use of a...
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...
Curated OER
Lead Extraction
Learners investigate one method used in the detection of lead in the soil. They use a Lead Check Soil Kit to safely obtain results in 30 minutes or less in levels of 400 ppm or above. In addition, they write a brief description of what...
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Water Hardness- Causes and Testing
Eighth graders examine what materials cause water hardness and the relative measure of water hardness in a two part lab activity. In part one, 8th graders add an assigned soap test solution to eleven different test tube solutions in...
Texas State Energy Conservation Office
Investigation: Automotive Emissions and the Greenhouse Effect
It is recommended that you conduct this fabulous experiment as a whole-class demonstration. Collect air samples from the environment, human exhalation, and car exhaust, then compare them for carbon dioxide content using bromthymol blue...
Curated OER
What Do Concentrations Mean?
Young scholars investigate the concept of climate gases and practice using the appropriate measurement terms. The lesson includes information that is used by the teacher to conduct class discussion or as a source of background for students.
Learning Games Lab
Fertilizing Chile
Fertilizer can mean the difference between a profit and a loss. Scholars use an online interactive to explore the effects of fertilizing in agriculture. Given information about the nitrogen levels in the soil, they decide the fertilizer...
Curated OER
A Yen for Maximum Residue Limits in Food
Future public health officials or agriculturists read an article and answer questions concerning the Japanese regulations for pesticide exposure. They compare the maximum residue limit for two, 4-D of Japan with other countries. This is...
Curated OER
Is It Safe to Go In? Water Quality of Bathing Areas in the EU
Using your senses, apprehend the effects of contaminants in water. With a global focus, young scientists conduct a safe experiment by tasting sugar and salt water with different dilutions. After reviewing threshold limits, learners write...
National Institute of Open Schooling
Heavy Metal Contamination
An informative lesson focuses on heavy metal contamination of environments. Classes read about, discuss, and answer questions pertaining to sources of heavy metals in the environment. To finish the 35th installment of 36, individuals...
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Carbon Dioxide Increases
In this atmospheric carbon dioxide worksheet, students use a graph of the Keeling Curve showing the increase in atmospheric carbon dioxide since 1958 to solve 6 problems. They determine the rate of increase, the find the percentage of...