Curated OER
Understanding pH, Alkalinity, and Hardness
Students comprehend the interactions of pH, alkalinity, hardness, and carbon dioxide in aquaculture water. They read the SRAC fact sheet number 464 "Interactions of pH, Carbon Dioxide, Alkalintiy and Hardness in Fish Ponds." Students...
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Chapter 16 Worksheet-Acids and Bases
In this acid and base worksheet, students solve fourteen problems including finding the pH of solutions, calculating the hydronium and hydroxide ion concentration, naming substances and identifying if the are strong or weak acids or...
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Water Layering and Circulation
Students examine relationships and interactions between different types of water. They experiment with colored water of different temperature and salinity and discuss how the results relate to real ocean currents.
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Temperature Change and the States of Matter
Tenth graders observe the processes of evaporation, condensation, melting, freezing, boiling, and sublimation. They do a quantitative investigation of the freezing of water, to explore explanations that involve particles.
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Getting Down to Basics (and Acidics)
Seventh graders investigate acids and bases. For this acids and bases lesson, 7th graders use household items such as coffee, lemons and soap to define acids and bases. They observe a demonstration to show how indicators determine if a...
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Scientific Method and Crystal Growth
Students conduct a hands-on experiment growing crystals to demonstrate the nature of science as inquiry. They discuss and test variables that affect crystal growth. They research mineral crystallization and mineral formation on the...
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Colligative Properties and Chemical Equilibria
For this colligative properties and chemical equilibria worksheet, students answer twenty questions including ranking solutions base on their colligative properties and determining what must happen to a reaction to reach equilibrium.
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Mass and Moles Worksheet
In this mass and moles activity, students solve fifteen problems which include converting between moles, mass, atoms, molecules and formula units.
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Will an Ice Cube and an Orange/Lemon Float?
In these discovering if an ice cube and an orange or lemon will float in water worksheets, learners conduct the two experiments, record the results, and answer questions. Students write 18 short answers.
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Basic Minerals - Macro and Trace
Identify minerals, their sources, functions, and deficiencies in the body. National Standard 14.2.1 Discuss macro minerals, electrolytes, and trace minerals Identify the problems associated with calcium and iron
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Physical And Chemical Changes
Second graders identify physical and chemical changes of matter. They distinguish between physical and chemical changes. They classify changes as physical or chemical.
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Oobleck, Goop, and Glurch
Sixth graders use teacher prepared samples of substances. They perform the same observations and complete charts for each substance. After recording and analyzing their results, 6th graders make changes in the recipes to create a better...
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Integrated Social Studies and Cooking Lesson
Fourth graders study the Civil War and discuss what soldiers ate during that time period. In groups, representing Union and Confederate soldiers, they follow recipes, prepare, eat, and share Union hardtack and Confederate Johnnie Cakes.
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Imagine the Food and Imagine a Response
Students experience life in the Secret Annex. In this Holocaust instructional activity, students participate in a simulation. The simulation places them in the Secret Annex for dinner as residents. Students journal about the experience...
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How To Grow Red Seaweed
Students explore ocean biology by participating in a plant growing activity. In this seaweed lesson, students identify the importance and uses of seaweed in the ocean and examine different seaweed samples. Students utilize an aquarium,...
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Layering of Water
Middle schoolers examine what happens when different types of water meet. In groups, they participate in an activity in which they combine different percentages of salt, fresh and brackish water and record their observations. They let...
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Frozen Water Before? I'm Sure You Have; But I Bed You've Never Frozen Salt Water! Water!!
Students examine what happens to salt water when it freezes. In groups, they measure density and salt concentrations in different samples of water and record its freezing time. They discuss the relationship between water density and...
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Water Chemistry
Young scholars engage in a lesson that is concerned with the concept of water chemistry. They conduct research using a variety of resources. Students also consider an experiment to observe how water has the abiility to exist as three...
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Teacher's Guide For: Water Temperature and Salinity Experiment
Students experiment with water density, temperature and salinity. In this water activity, students observe how the coldest water sinks to the bottom of a test tube, and how saltwater sinks in comparison to freshwater.
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Watching Crystals Grow
Students observe crystal growth of Epsom salts and the variables that hinder or help their nucleation and growth. They illustrate a series of drawings/pictures as the crystals grow. They look for the different shapes they form as well...
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Salinity Experiment
In this salinity experiment worksheet, students follow the procedures to set up an experiment about how salinity affects the weight of water.
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Learning Lesson: Salt 'n Lighter
Learners participate in a demonstration showing that as salinity increases density increases as well. They also examine the different densities of air. They discuss the amount of water displaced by large ships.
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Tracking the Salt Front
Students manipulate Hudson River salt front data from October 2004 -
September 2005 to locate the high and low points of the salt front for each month, They determine the range for each month, determine the modal range for each month,...