Curated OER
Determining Acids and Bases
Students test various liquids and identify as acids or bases. In this chemistry and pH lesson, the students use purple cabbage indicator to test a variety of teacher-provided substances, then bring in liquids from home to test acidity....
National Institute of Open Schooling
p-Block Elements and Their Compounds – I
Lesson 21 in a series of 36 specifically focuses on elements and their compounds from groups 13, 14, and 15 on the periodic table — including boron, carbon, aluminum, silicon, nitrogen, and phosphorus. Classes learn how some of these...
Curated OER
Introductory Lesson on How pH Levels are Determined
Students explore pH levels of different substances. In this lesson about pH, students work together in three to four groups to test substances. moving between three different stations performing tests on the substances to determine...
Curated OER
WS 8.9 Presentation Questions
In this mixtures worksheet, students answer twenty three questions about student presentations on topics such as amalgams, homogenized milk, antifreeze and coolants, soaps and detergents and water softeners.
Curated OER
Exothermic Reactions
Students experiment, observe, measure, and analyze what occurs during an exothermic reaction. They safely design an experiment, control variables, and properly dispose of materials.
Curated OER
Mini-Volcanoes!
Students define volcanoes and why they erupt. Using baking soda, vinegar, and soap detergent, students create and observe their own volcanoes erupting. A brain-pop video can be used to follow-up the activity (found on website).
Curated OER
Molecular Evolution in Plants
High schoolers are using a paper chromatography study that is suitable for introductory biology. The absorption spectra studies and gel electrophoresis studies are appropriate for students who have complete both introductory biology and...
Curated OER
Determination of Phosphates
Learners engage in a laboratory lesson in order to increase understanding of the impact of phosphates at the chemical and ecological levels. The lab exercise is completed with the goal of getting them to predict the outcomes and future...
Curated OER
Floor Polish Experiments
Students compare various brands of floor polishes and test their durability and appearance. In this floor polish lesson students test different polishes and check performance.
Curated OER
Household Chemicals
In this chemicals worksheet, students review how to read chemical labels, define an acid-base indicator, and decide which way strong acids can be dangerous. This worksheet has 15 short answer and 20 fill in the blank questions.
Curated OER
Activity #7 Recycling of Newsprint
Students illustrate the paper recycling process. They collect and weigh all the newspapers that come to their house in a week's time. Pupils multiply this number by all the weeks in a yeat and again by an estimate of the number of...
American Chemical Society
A Catalyst and the Rate of Reaction
More than 90 percent of chemical products are made using a catalyst. Lesson demonstrates the way a catalyst changes the rate of reaction without altering the chemical reaction. A catalyst doesn't appear as a reactant or a product, yet it...
Beyond Benign
Breaking the Tension
The tension builds as learners experiment in your classroom. The 17th installment in a 24-part series has scholars investigate the concept of surface tension. After discovering characteristics of surface tension, they add a compound...
Teach Engineering
Measuring Surface Tension
How do you measure surface tension? The fifth installment of a nine-part series is an experiment where young scientists use tubes of different sizes to measure surface tension. They calculate the average and standard deviation of the...
Curated OER
Determining Liquid Densities
Students practice determining liquid densities in a short, hands-on lab activity. Students use a graduated cylinder to measure out 100 milliliters of a liquid, find its mass using a balance, and record measurements in a data table....
Curated OER
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...
Curated OER
Molecular Forces at Work: Creating Soap Bubbles
Students investigate adhesion, cohesion and surface tension. For this molecular forces lesson plan, students observe multiple demonstrations that show surface tension, the attraction of water molecules to each other and the ability of...
Curated OER
Surface Tension (Soap Boat)
Young scholars investigate the affect of soap and water temperature on surface tension.
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
Graphical Determination of Density
Students determine the density of metal shot by a graphical method using significant digits in making measurements and calculations. Students graph a seris of laboratory measurements and determine density from a mass verses volume graph.
Curated OER
Molecular Evolution in Plants
Students examine chlorophylls. They explore the absorbing pigments in a variety of plants. Through activities, students determine spectrophotometrically. They compare plant proteins from the family Brassicace to assess the level of...