Curated OER
Testing for Conductivity
Learners test the conductivity of selected liquids and solids. They test the circuit by touching the two free ends of the wires together and add salt little by little recording the data after each addition. Finally, students predict...
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Science: Headline
High schoolers are able to identify questions they need to answer to comprehend a specific news article. They are pushed to question how they know that their drinking water is safe.
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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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Chemistry: Changing Materials
Students examine physical change with different temperature and solvents. In this elements and compounds lesson, students conduct experiments to discover what happens to the mass of a substance when is undergoes a physical change.
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Solutions, Suspensions, & Colloids Lab
In this solutions, suspension and colloid worksheet, students complete a lab experiment in order to determine if a given mixture is a solution, suspension or colloid. They are given six vials and they record their observations of each...
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Biotic and Abiotic Factors
In this biotic and abiotic factors worksheet, students complete 20 various types of questions related to biotic and abiotic factors. First, they write the vocabulary word that best completes the sentence. Then, students state an example...
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Floating on Salt Water
Mixing substances together causes their properties to change. This resource illustrates that concept for fifth graders by having them consider four questions that have to do with buoyancy and boiling point. Learners begin to understand...
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Physical and Chemical Reactions - Factors Which Affect Reaction Rate
A total of five experiments lead chemistry pros to understand the difference between physical and chemical change. They also experiment with exothermic reaction factors that affect rate of reaction. The procedures are not written in the...
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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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Back to the Past
Students label fossil imprints. In this Geology instructional activity, students view fossil imprints of several items. Students explain what a fossil is.
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Salt and Water Divorce by a Physical Change
High schoolers discuss the definitions of physical and chemical properties and changes. They vaporize a solution of salt and water, observing the sodium chloride that is left behind.
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Solutions
In this solutions worksheet, students read about solutions, solutes, and solvents. Students compare solutions with mixtures that are not solutions. Then students complete 10 fill in the blank, 12 matching questions, and 10 terms into a...
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Solutions
In this solutions learning exercise, students read about the characteristics that define a solution such as the solvent and the solute and the homogeneous mixture. They are given a chart with the differences between solution, colloids...
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Different Types of Changes (1.2)
In this recognizing different types of changes worksheet, students answer questions about such things as reversible change, irreversible process, climatic change, filtration process, physical change, and change in the state of a...
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Endothermic and Exothermic Lab
In this endothermic and exothermic reactions worksheet, high schoolers experiment with water and a salt of choice to determine if heat is absorbed or released in the reaction. Students take the temperature of their solution over a 2...
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Physical vs. Chemical Changes
For this chemical and physical change worksheet, young scholars are given details about chemical and physical changes. They are given 2 examples using water and salt and they identify 15 statements as chemical or physical changes....
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Chemical Sleuthing
High schoolers engage in a lesson which includes flame tests and the construction of a simple diffraction spectrograph with which to measure sodium ion emissions. They use the Bragg equation to compute the wavelength of the line spectra...
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Taste
Students collect data to be used in selecting the class favorite taste. They predict which among the common flavors such as salty, sweet, sour, or bitter is preferred.
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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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Chapter 3 Worksheet Matter
For this matter worksheet, students answer ten questions about matter including the phase of matter, mixtures and how they are different from compounds, the physical and chemical properties of matter and the difference between...
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Making soap you can use
Those textbook experiments are no good. Using this simple method you can make a real bar of soap. It's
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Understanding Salinity
Students discuss why the ocean is salty. They discuss what salinity is. Students are told that is they want to know how much salt is in a body or water, they would use a special scientific tool. They complete an Estuarine Layers science...
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Solutions and Suspensions
Students explore matter by conducting an in class demonstration. In this liquid mixture lesson plan, students identify the difference between a solution in which a solid dissolves into liquid, and a suspension where the solid doesn't...
Creative Chemistry
Transition Metal Ions and Colour
For this transition metal learning exercise, high schoolers are given equations for transition metals and their ions. Each equation shows the changes in the colors of the ions when heat, salt, or other substances are added to the metals.