Curated OER
# 14 Experimenting with Copper (II) Solutions
Students determine that the relative concentration of copper ions in water can be determined by a color comparison. They make a copper (II) sulfate solution of a given concentration. Students dilute their initial solutions until their...
Curated OER
Investigating The Mysteries Of Third Grade
Third graders use logic and knowledge of mathematics facts to solve problems. They see that pigments can be broken down into separate colors. Pupils recognize the capacity of water to move upward and measure the height water travels up...
Curated OER
Color Burst
Fourth graders explore how colors react in water (chromatography) and other solvents. They observe, investigate, measure, record data and communicate their results in the form of graphs/charts and narration presented to the class....
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Melting and Freezing Behavior
Students investigate melting and freezing behavior in substances. For this melting and freezing points lesson plan, students perform experiments to test the impact of various salts on the freezing point of water, they test the impact of...
Curated OER
Silica Tetrahedron Model
Very simply, pairs of learners construct a model of the tetrahedral silica structure using raisins and toothpicks. They dip it into a soapy solution and then blow a bubble "atom" into its center. The lesson plan gives instructions that...
Curated OER
Polymers and Crystals: Their Role in Food Science
Blend chemistry with cooking in this exploration of polymers, carbohydrates, and food science. Experimenting with gelatin produces concrete examples of the bonding and ploymerization discussed in the lesson. Copious, comprehensive...
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Semipermeable Membranes and Bioaccumulation
Beginning biologists place a drop of food coloring into water of differing temperatures to observe the effect on the diffusion rate. They remove the shells from raw eggs and then experiment with osmosis over the remaining membranes....
Cornell University
Renewable Resins and Composites
Merge chemistry with environmental science to study biodegradable materials. An engaging activity allows learners to experiment with different resin concentrations and composites. Through experimental tests, scholars test their creations...
Curated OER
Predicting the pH of Salt Solutions
A single page provides you with lecture notes for your instructional activity on hydrolysis. Introduce your chemistry class to Bronsted-Lowry theory by explaining the hydrolysis of acidic cations and basic anions. Show them how the...
NOAA
Ocean Acidification
If tap water is more acidic than ocean water, why are we so concerned about ocean acidification? The third installment of a 23-part NOAA Enrichment in Marine sciences and Oceanography (NEMO) program focuses on carbon dioxide levels in...
NOAA
History's Thermometers
How is sea coral like a thermometer? Part three of a six-part series from NOAA describes how oceanographers can use coral growth to estimate water temperature over time. Life science pupils manipulate data to determine the age of corals...
Curated OER
Mass-Mass Relationship
Learners investigate mass-mass relationships in the lab. In this mass-mass relationship lesson plan, students mix sodium carbonate with hydrochloric acid to produce sodium chloride, water and carbon dioxide. Learners use the amount of...
Curated OER
Not a Drop to Drink
Students design an experiment to determine which liquid is water. In this chemistry lesson plan, students perform the experiment as outlined in their design. They record observation and formulate conclusion.
Curated OER
A Very Simple Conductivity Meter
Students conduct a simple conductivity meter to test the ionic or non-ionic nature of water samples including one from their home.
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Ranking Salinity
Students explain the uses of titration in chemistry and in industry. In this chemistry lesson, students determine the concentration of an unknown solution using titration. They calculate the percent of salt in saline solutions.
Curated OER
Solutions Worksheet
Students complete a worksheet on solutes in chemistry. They are given an equation in order to find the total mass solution, molarity, and molality.
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Kinetic Theory
Students describe how molecules of the different phases of matter move according to the Kinetic Theory. In this chemistry instructional activity, students observe and participate in teacher demos. They give real world applications of the...
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A “Salting” Solution
Ninth graders investigate the factors affecting solubility. In this chemistry lesson, 9th graders differentiate solvent and solute. They give examples of real world application of solutions.
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Oxygen
Students explore oxygen and its physical and chemical propeties. In this investigative lesson students complete several experiments using oxygen.
Curated OER
From Polymers to Bioplastics: Looking Toward Finding Renewable Resources
Students investigate the properties of polymers. In this chemistry lesson, students explain the importance of energy sources. They produce a bioplastic from the lab and evaluate its structural integrity.
Curated OER
Viscosity Explorer
Students discuss and compare what type of fluids will fill up a beaker first. In this chemistry lesson, students differentiate between pouring glue and water and which will fill the beaker first. They discuss the viscosity of each fluid.
Curated OER
Molecular Origami
Students construct an origami models of different molecules. In this chemistry lesson, students explain what expansive soils are made up of. They discuss what happens when this expansive soil expands or shrinks.
Curated OER
Playing With Polymers
Students explore the world of polymers. In this chemistry lesson, students make polymers and observe their properties. Follow-up questions and extension activities are included.
Curated OER
Why is My Honey Runny?
Learners identify the factors that affect viscosity of substances. In this chemistry lesson plan, students define what viscosity is in their own words. They give real world applications of viscosity.
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