Curated OER
WS 9.2 Equilibrium
In this equilibrium worksheet, students fill in twenty one blanks with terms related to reactions and equilibrium. They then solve four problems given chemical reactions and determine equilibrium, moles present at equilibrium and...
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World of Plastics and Polymers
Students investigate plastics and learn they are giant molecules made of carbon atoms. In this polymers and plastics lesson, students perform 3 activities which all include making polymers from household items such as milk and vinegar,...
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Soak it up
Students complete a hands on activity using hard boiled eggs, food coloring, tape, cups, water, and a knife to show how permeability affects animals. In this permeability lesson plan, students complete this activity and learn how...
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Volume of Gas
Eighth graders investigate the effect of temperature on the volume of a gas in a closed container. They measure the height of the water in their beaker/container, conduct their experiment, and create a graph to illustrate their data.
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Exothermic and Endothermic Reactions
High schoolers observe demonstrations of exothermic and endothermic reactions and determine the changes that take place in a chemical reaction. Students observe four demonstrations showing entropy, attraction of molecules due to...
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Milk Glue
Students observe a precipitation and neutralization reaction and learn to filter the products of the precipitation reaction. In this precipitation and neutralization lesson plan, students create curds and whey using milk and vinegar....
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Warm Air versus Cold Air
Students discover that warm air takes up more space than cold air. In this science lesson, students perform 4 experiments using balloons to determine that the molecules of warm air are more spread out than those of cold air.
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Solutions
In this solutions worksheet, students solve twelve problems including calculating products made in reactions, determining limiting reagents, calculating molarity of solutions, determining percent composition, and finding volumes and...
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What Happens When Air is Heater or Cooled?
In this air pressure worksheet, students use a can to demonstrate how air pressure collapses a can when placed in hot water.
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Hydrocarbons
In this hydrocarbon learning exercise, students answer 13 questions about different types of organic molecules categorized as hydrocarbons. They explain the different hydrocarbons, they draw structural diagrams for different hydrocarbons...
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Desalination: Creating a Solar Still
To better understand how solar power can aid in creating desalinated drinking water, the class creates a model still. They will build a model of a solar still, make observations, and discuss how the process works. While the idea behind...
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Properties of Salt
Students see how the properties of salt affect the color of flame, the flow of electricity, and the freezing temperature of water. They identify salt and sugar crystals under a microscope and discuss various practical uses of salt.
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Chemistry 115 Practice Exam 3
Radioactive decay, pH, properties of elements, organic compounds, and stoichiometry are all touched upon through this practice chemistry exam. It always helps learners to take a practice test in preparation for the actual exam. This...
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A Whiff of Danger
Public health trainees read and write a summary of the article, "A Whiff of Danger". The article is not available through the link, but can be found on the National Center for Biotechnology Information website. After summarizing,...
National Institute of Open Schooling
The Liquid State
Due to surface tension, dew — a liquid, is spherical in shape. Learners explore the properties of liquids in activity seven in this series of 36. Beginning with its basic properties such as boiling point and moving through to surface...
NOAA
The Methane Circus
Step right up! An engaging research-centered lesson, the third in a series of six, has young archaeologists study the amazing animals of the Cambrian explosion. Working in groups, they profile a breathtaking and odd creature and learn...
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Lose Some Weight- Evaporate!
Students determine that some liquids are able to evaporate more readily than others. They create a balance using cups and a ruler to determine which end of a strip dipped in alcohol or water evaporates the fastest, hence loses the most...
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Molecular Structure of Proteins
Students examine the effects different substances have on proteins. They test different molecules reaction to water. They discover how the amount of water affects the shape of the protein.
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Osmosis
Second graders discover the process of osmosis. In this science lesson plan, 2nd graders learn how different kinds of solutions move through selectively permeable membranes, understand the role of osmosis in the movement of molecules,...
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Melting Ice
Students observe the melting of ice and explore the basic physical changes that occur. They gain information of how different substances change the rate of melting. Students discuss the properties of water and ice, the definition of...
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Watercycle
Third graders examine the natural circulation of water from oceans, lakes, and rivers to evaporation into the air, and then to condensation to produce rain falling back to the soil as components of the water cycle.
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Survival Still
Students explain how to desalinate water using solar energy. In this solar lesson students complete a lab activity and explain capillary water.
Curated OER
Wonderful Waves
In this science worksheet, students perform an investigation about sound waves and vibration. Students use a pan of water and toothpicks to make and observe ripples. Students answer 4 essay questions about their observations.
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Phase Change
Students compare the freezing temperature of two substances by conducting an experiment to freeze liquid ice cream. They vary the amount of salt used in the ice cubes during the freezing procedure to determine the change in the...
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