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Curated OER
The Nature Of Dissolving Processes
Young scholars examine the rule of "like dissolves like." They define and describe solutions and solubility models on molecular liquids, ionic solids, and molecular solids.
Curated OER
Liquids Have Differnt Viscosities
Students explore visosity of matter. They run tests of various liquid substances to observe and compare rates of flow of different substances. In addition, they relate viscosity to distance travelled by sample substances.
Curated OER
The Conceptual Theory of Chromatography
Students conduct a lab to determine the best way to separate a variety of mixtures choosing between paper, thin layer and column chromatography. They use chromatography techniques to identify unknown substances and submit a lab report on...
Curated OER
Making "Cents" of Surface Tension
Young scholars explore the unique behaviors of water. They investigate surface tension using water drops on a penny and pennies dropped in a cup.
Curated OER
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...
Normal Community High School
Golf Ball Lab
The first golf balls were made of wood and would only last for a few games. Modern golf balls last a lot longer but they don't float. The presentation provides the directions for a lab to determine the minimum amount of salt needed to...
Curated OER
#21 Films, Fibers, and Solubility
Students are introduced to how the differences in solubility of materials are used in the manufacture of fibers and films. They are also introduced to the various processes used to make films and fibers. Pupils prepare fibers using wet...
Southwestern Medical Center
A Classroom Demonstration of Protein Folding
Does the mention of proteins and polypeptide relationships in your classroom result in mass confusion? Does the attempt to teach this important concept generate multiple questions and, at times, lead to a room filled with blank...
National Institute of Open Schooling
Aldehydes, Ketones and Carboxylic Acids
Although their name makes them sound dangerous or toxic, carboxylic acids are found throughout nature in things such as citric acid, vinegar, and even in your DNA. Through detailed readings, discussions, and answering questions...
National Institute of Open Schooling
Water Pollution
Fifteen million children under the age of five die each year due to diseases in their drinking water. Water pollution is the topic of lesson 34 in the series of 36. Scholars, through reading and discussing, study numerous aspects of...
Curated OER
Chemical Resistance and Synthetic Polymers
Students participate in lab activities in which they examine immersion, stain resistance, and stress cracking of synthetic polymers. Students use their collected data to discuss service applications and possible performance of materials.
Curated OER
Substitution and Elimination Reactions
For 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...
Curated OER
Substitution and Elimination Reactions
In this substitution and elimination reactions worksheet, students compete reactions by drawing the structural formulas for 18 reactions. If no reaction occurs, students write N.R.
Alabama Learning Exchange
Float or Sink?
Experiment with mass and density as scholars figure out what makes things float or sink. First, they watch a podcast introducing these concepts. Be sure to use the comprehension question to test their understanding. Young scientists...
American Museum of Natural History
Climate Change
It actually is possible to have too much of a good thing when it comes to climate change. A slide show lesson describes how burning fossil fuels contributes to climate change. Individuals read about the scientific process and the...
Curated OER
How Big is a Molecule?
Students estimate the size of a molecule of oleic acid. They conduct an experiment using chalk dust, water, and oleic acid, solve various calculations, and answer discussion questions.
Curated OER
Intermolecular Forces Worksheet
In this intermolecular forces worksheet, students answer 4 questions about the forces between atoms within molecules and compounds. Students rank the boiling points of compounds based on their intermolecular forces and they explain...
Curated OER
What do Chemists See When they Look at Chemicals?
In this chemicals learning exercise, students answer 15 multiple choice questions about chemicals, compounds, inorganic and organic molecules.
Curated OER
Meiosis
Using yarn and chenille stems, lab groups collaborate to model mitosis and meiosis. Brief background information and a vaguely written procedure comprise this outline. More instruction needs to be provided to learners about cell division...
Curated OER
Solubility of Ionic Substances
In this solubility worksheet, students identify substances as either ionic or molecular, define saturated solution and solubility, and calculate concentration of solutions. This worksheet has 7 short answer, 5 fill in the blank, and 27...
Curated OER
Acid, Base, or Salt?
In this acids and bases worksheet, students read about the differences between acids and bases and then complete a table comparing the characteristics of both. Then students determine if the given statements describe an acid, base, or...
Curated OER
Chemical Compounds
In this chemical compounds worksheet, students write the name of compounds from their chemical formula, balance equations, write electronic configurations for elements, and draw Lewis dot structures. This worksheet has 8 fill in the...
Curated OER
Exploring Magnetism and Electricity
Students explore Faraday's Law. In this electromagnetism lesson, students investigate Michael Faraday. Students discover the history of the electromagnet. Students examine the parts of an electromagnet.
Curated OER
Angular Solution of Hydrogen Atom
Students participate in an angular solution of hydrogen activity. Using this activity, students also illustrate eigenvalue problems applied in mathematics. They explore Schrodinger's equation and particle wave duality.