Curated OER
Condensation Polymerization: Preparation of Two Types of Polyesters
College-level or AP chemists use phthalic anhydride to synthesize two different polyesters, one linear and one cross-linked in structure. A detailed materials list and well-written procedures are provided on a lab sheet. Learners write...
American Chemical Society
Using Color to See How Liquids Combine
Blue-tinted water is added to unknown liquids that have been tinted yellow to find out how they interact. This is a memorable activity that is part of an investigation on the properties of liquids, which is part of a unit on the...
Curated OER
Sorting Plastics For Recycling
First, young chemists practice polymer identification by density and flame tests. With the data collected, they propose a method of separating polyethylene from other plastics and determine what property makes it desirable for recycling....
American Chemical Society
Using the Combining Test to Identify Unknown Liquids
Once investigators have learned how their mystery liquids interact with water during the preceding activity, they now use their observations to identify them. This is an ideal conclusion to the mini unit on the properties of water.
Curated OER
Investigating the Change
Sugar crystal growth is observed as an example of physical change and cabbage juice pH indicator is used to demonstrate chemical change. The crystal growth is tracked over five days. The cabbage juice experiment is involved and can also...
American Chemical Society
Curious Crystals
Crystals are more than meets the eye! Can learners tell them apart simply by observation? As they examine five samples with a magnifier, they find that appearance alone is not enough. This serves as an introduction to a mini unit on...
Curated OER
Physical and Chemical Change of Six White Substances
Students investigate chemical and physical changes in reactions. For this chemical and physical change lesson plan, students mix 6 different white substances with water, vinegar and iodine. They make hypotheses about each substance and...
Curated OER
Dust in the Wind; Chemicals in the Water
Students explore mechanical and chemical weathering at stations. They articulate some mechanisms of chemical and mechanical weathering through exploration in a lab. Students stations describe how chemical weathering differs from...
Curated OER
Dry Ice Activities Mini Lesson
Get your middle schoolers experimenting with dry ice. In the first activity, they place a piece in water and then use phenol red to identify its pH. In the second, they place a piece in a limewater solution and watch as the combination...
Curated OER
How to identify a physical change from a chemical change
Students identify the difference between some physical and chemical properties and compare some physical and chemical changes. They design an experiment to distinguish between a physical or a chemical property of their choice.
Curated OER
Food Chemistry: The Chemistry of Sweeteners
Students investigate the properties of sweeteners. In this chemical property lesson, students examine the unique properties of sweeteners by performing several experiments. They will analyze the data to form a conclusion about the...
Curated OER
Chemical Bonding
Students classify compounds as ionic or covalent. In this chemical bonding lesson plan, students experiment with 6 chemical compounds. They test physical properties such as the melting point, the solubility and the electrical...
Curated OER
Testing for Chemicals in Soils
Middle schoolers use sight, touch and chemical test kits to evaluate and classify soil types. They determine the organic content, soil pH, conduct visual analysis and nutrient tests of a variety of soil samples from various sources.
Curated OER
Investigating Chemical and Physical Changes
Students explore physical and chemical changes by looking at how different powders react to a variety of substances. They observe and identify the difference between physical and chemical change using a mystery powder.
Curated OER
Physical and Chemical Changes
Learners observe examples of physical changes that can take place between the three states of matter and develop common sense and intuition in distinguishing between chemical and physical changes. They observe diagrams on the board from...
Curated OER
Fun With Chemical Changes
Fifth graders observe and identify the differences between chemical and physical changes. In small groups they mix different substances together in glass beakers, and identify which had a chemical change, supporting their statements...
Curated OER
Chemical Fun
Fifth graders observe and conduct a variety of experiments to differentiate between physical and chemical changes. They mix cabbage juice with different liquids and record their observations on a chart. Students write down their...
Curated OER
Sink or Float?
Students analyze the relationship between density, buoyancy, and salinity. In this chemical properties instructional activity, students read a background activity for the instructional activity and experiments to the topics. Students...
Curated OER
Physical and Chemical Changes
Sixth graders complete several experiments about chemical and physical changes. In this physical and chemical science lesson, 6th graders complete 6 experiments about chemical and physical changes. Students examine the processes of...
Curated OER
Properties of Metals
Fifth graders study the properties of metals and use them to identify different properties. In this metal properties lesson plan students complete a demonstration .
Curated OER
The Art of Soap Making
Here is a nice, clean wrap-up lesson plan for your chemistry class when they are studying chemical reactions . They experiment with different oils to make soap. To make it more fun, they are to imagine that they are part of a soap...
Curated OER
The Case of Similar Substances
Middle schoolers perform tests in the lab to identify an unknown substance. In this physical science lesson, students observe the physical and chemical properties of substances. They formulate a conclusion based on experimental results.
Curated OER
Inquiry into Consumer Products
Students recognize different consumer products, found in and around the home, that have reactive or denaturing properties when used together. They explore chemical and physical properties of each product by identifying chemical formulas...
Curated OER
Lab: Reactions of Copper
Learners perform a series of experiments on copper to produce a variety of copper compounds. In this chemical reactions of copper lesson plan, students use copper wire and nitric acid to produce copper nitrate. They then form a hydroxide...
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