Curated OER
Plastic Identification Lab
For this plastics worksheet, students experiment with an unknown plastic and determine the polymer name and resin code by using a flow chart of various tests. They answer five questions after they collect their data.
Curated OER
Properties of Matter
Students investigate the properties of matter. In this properties of matter lesson, students observe containers of different metals and discuss their properties including density. Students find the density of an unknown metal and of...
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Minerals
Students apply rules to compare and rank the hardness and softness of minerals. They perform a scratch test on four unknown mineral samples, read a bar graph that illustrates the comparative hardness and softness of four named minerals,...
Curated OER
The Periodic Table
Eighth graders read and interpret the Periodic Table. They also make decisions on how to group and arrange different kinds of matter and draw the structure of atoms of pure elements. Finally, 8th graders contrast and compare basic...
Curated OER
Disposable Diaper Comparison and Mystery Powder Identification
Students investigate which diaper is the most absorbent. In this chemistry lesson, students calculate how much water is absorbed by diapers. They identify an unknown powder based on physical and chemical properties.
Curated OER
Does Size Matter?
Students explore chemical solutions. In this chemistry lesson, students investigate the relationship between three related experiments about solutions. Students determine variables that affect the chemical concentration of each solution.
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Acid and Base Testing 2
Learners design and conduct an experiment on unknown solutions after studying descriptions of indicators and the way in which they identify acids and bases. Students must gather, organize, and analyze data as well as make inferences...
Curated OER
Toxicology and Living Systems
Students investigate how toxic chemicals affect biological systems. They determine the toxic dose of a chemical that inhibits seed germination in a Brassica rapa. They investigate the effect of environmental tobacco smoke on human lung...
Curated OER
Who Took Jerell's iPod?
Young scholars investigate various substances to determine the perpetrator of a crime. In this biology lesson, students test for the presence of organic compounds in various samples. They identify an unknown substance based on its...
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Bats and Hot Dogs
Students identify patterns and relationships from data that is collected and solve variables. In this investigative lesson students study ocean productivity, the nitrogen cycle and phytoplankton then answer questions.
Curated OER
What Does My Bacteria Look Like?
Students identify Gram positive and Gram negative bacteria using staining techniques. Students research importance of identification of bacterial types in diagnosing bacterial diseases.
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There Is No Away
Students identify how trash is disposed of. In this environmental lesson, students read and discuss the poem "Sarah Sylvia Stout" by Shel Silverstein and discuss the ways people treated the items in the poem. Students discuss how trash...
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Acids And Bases -- Universal Indicator
Eighth graders design and perform an experiment that uses a Universal Indicator Color Guide to measure the strength of acids and bases. They also determine happens when acids and bases are mixed together. They decide which of three...
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Acid and Base Testing
Students study descriptions of indicators and the way they are used to identify acids and bases. They use this information to determine if unknown solutions are acids or bases.
Curated OER
Developing a Theory About the Nature of the Contents of a Sealed Box
Students observe the changes of a closed chemical system. They record and analyze the data as they manipulate the system. They answer questions to end the lesson.
Curated OER
Integrating Physics-Atomic Fingerprints
In this atomic fingerprint worksheet, students read about the Bohr model and electrons changing energy levels and emitting energy. They answer questions about the atomic spectrum and the fingerprints for specific atoms.
American Chemical Society
Curious Crystals
Crystals are more than meets the eye! Can learners tell them apart simply by observation? As they examine five samples with a magnifier, they find that appearance alone is not enough. This serves as an introduction to a mini unit on...
Curated OER
Supernova Chemistry
Using spectroscopes, high school astronomy, physics, or chemistry learners observe emission spectra from several different sources. This stellar NASA-produced lesson plan provides terrific teacher's notes and a student handout. Make sure...
American Chemical Society
Crushing Test
Solidify understanding of the properties of crystals by crushing them to compare hardness. After some class discussion, a procedure is planned, and then small groups go about making observations as they crush five different crystal...
Virginia Department of Education
Acid-Base Theory
Litmus paper, why so blue? A chemistry activity includes a pre-lab activity, practice calculating pH, an experiment measuring the pH in acids and bases, a titration demonstration, and a titration experiment.
Curated OER
Stoichiometry Problems
A cookie recipe is displayed as an example of proportional relationships, a clever way to introduce your chemists to stoichiometry! The steps of stoichiometry are listed, molar volume is explained, and then several stoichiometry problems...
Santa Monica College
The Density of Liquids and Solids
There are underwater rivers that flow on the ocean floor thanks to a difference in density. Scholars learn about the density in both liquids and solids in the second lesson of an 11-part series. They then determine the density of water,...
Curated OER
"Investigating Hazardous Materials"
Eighth graders gather Internet information on a variety of related topics concerning hazardous waste.
Curated OER
Classification
In this classification worksheet, students will look at how biological classification began and how scientific names are used in biology. Students will use a table showing the classification of four organisms to answer 10 short answer...