Curated OER
Substitution and Elimination Reactions
In this substitution and elimination reactions worksheet, students complete 11 reactions by writing the structural formulas for the products. If no reaction occurs, they write N.R. They also write structures of the products for 3...
American Chemical Society
The Ups and Downs of Thermometers
What has a thermometer earned that your pupils haven't? A degree! After reviewing the previous lessons about molecules and degrees, scholars observe how thermometers work before building their own. The module includes a activity sheet.
Curated OER
Using Plant Pigments to Link a Suspect to a Crime
Young scholars use chromatography to separate plant pigments collected from a fictitious crime scene and suspects. They compare the Rf values of the plant pigments to determine whether the plant pigments found on any of the suspects...
Olomana School
Mixtures and Solutions: Paper Chromatography Experiment
Why does some ink bleed through paper, and other ink doesn't? Practice some paper chromatography to separate the colors from a pen with an interactive experiment for middle and high schoolers. Learners use a variety of solutions to track...
Cornell University
Predicting Chemical Reactions
Prove the Law of Conservation of Mass through a lab investigation. A well-designed lesson asks groups to combine materials and monitor indicators for chemical reactions. Measuring the mass of the reactants and products allows individuals...
Curated OER
Activity #8 U Are So Dense!
Students watch as the teacher demonstrates: if a single liquid is placed in a U-shaped tube, the level of liquid on both sides are the same. When the mass is greater on one side than the other, liquid is pushed from one side to 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
Using Hazard Symbols
In this hazards worksheet, students determine what the different hazard symbols mean and then match the symbols that would be found on specific chemicals. This worksheet has 1 matching and 3 short answer questions.
Curated OER
Energy and Stoichiometry
In this stoichiometry worksheet, learners calculate the amount of heat energy released in combustion equations. This worksheet has 4 problems to solve.
Curated OER
Esters: The Secret of Natural and Synthetic Fragrances
Students investigate esters, make an ester and detect esters in natural foods and plants. In this esters lesson plan, students detect smells of hidden objects, produce an ester using peas, brown sugar and apple and demonstrate how to...
Curated OER
Hot Food
Students compare and contrast photosynthesis and chemosynthesis as processes that provide energy to biological communities. They investigate the energy content of hydrocarbons used in coral communities.
Curated OER
Lipid Worksheet
In this lipid learning exercise, students answer questions about the structure and functions of lipids. They read about the three main lipids in the body including triglycerides, phospholipids and cholesterol and answer questions about...
Curated OER
Colligative Properties - Freezing Point Depression
In this freezing point activity, learners determine the freezing point of solutions at different concentrations. This activity has 9 problems to solve.
Curated OER
Vapor Pressure
In this vapor pressure worksheet, students use a given graph of the vapor pressure of four liquids to answer eleven questions. They compare and find boiling points and vapor pressures of propanone, ethanol, water, and ethanoic acid.
Curated OER
What do Chemists See When they Look at Chemicals?
In this chemicals worksheet, students answer 15 multiple choice questions about chemicals, compounds, inorganic and organic molecules.
Curated OER
Murder Mystery
High schoolers examine how to capture foot prints while they simulate a criminal investigation. They discover how the clues are needed for identifying or eliminating murder suspects.
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
Is Your Water Clean?
Students compare water quality of different sources. They test water samples for odor, phosphates, pH, bacteria, and dissolved solids. they fill out a data table and answer questions about their findings.
Curated OER
EGG-cellent POLYMER PACKAGING DESIGN
Students investigate the concept of a polymer using an experimental design of protecting an egg in a bookbag. They test the properties of polymers and form an educated solution to the proposed problem. Then they describe the steps used...
Curated OER
Will it Stretch?
Students explore elasticity and describe the effects of temperature changes on physical properties. In this rubber band stretch lesson students complete an experimental activity and show their results.
Curated OER
Is Your Water Clean?
Students conduct tests of water samples from different sources, such as a local river, tap water, and an irrigation ditch. After determining which pollutants are present in each sample, students hypothesize the possible sources of the...
Curated OER
Common Words that are Similar in Polish and English
In this foreign language worksheet, students discover that many Polish words are similar to those in English and the meanings can be guessed. Students read a chart of 220 Polish words and their English translations. Example: balon...
Curated OER
Build Your Own Weather Station
Studens experiment with temperatures. In this science lesson, students make their own weather station by heating one bottle and keeping the water in another bottle at room temperature.