Curated OER
Chemistry Midterm Practice Exam
A comprehensive practice exam, this resource covers many areas of chemistry. The test includes 71 multiple choice questions on topics such as problem solving, chemical equations, chemical formulas, thermodynamics, acids and bases, and...
Curated OER
WS 1.2 Metric Units I/ Physical vs. Chemical
In this metric units and properties worksheet, students determine the proper metric unit given a variety of measurements for specific items. They also identify chemical and physical properties and chemical and physical changes.
Royal Society of Chemistry
Investigating Temperature Changes on Evaporating Liquids—Microscale Chemistry
Is there more to evaporation than just less liquid? Show young scientists the energy transformation that occurs during a phase change through a series of simple experiments. Lab partners place drops of water, ethanol, and ethoxyethane on...
Cornell University
Energy Changes in Chemical Reactions
The heat of solution measures how much thermal energy a dissolving substance consumes or gives off. The experiment demonstrates both endothermic and exothermic reactions. Scholars dissolve several substances, measure the temperature...
Curated OER
Chemical and Physical Changes
Middle schoolers experiment, identify and apply the concepts of chemical and physical changes utilizing real-world examples. They discuss and model physical and chemical changes, answer guided questions and play a game that reinforces...
Curated OER
Changing Matter
Fifth graders conduct an experiment. In this changing matter activity, 5th graders receive a cup of crystals, record their observations, add water to the crystals and record new observations. Students then discuss the differences...
Curated OER
A Chemical Curiosity
In this chemical change instructional activity, students review physical changes such as evaporation and condensation before working with chemical change. They conduct an experiment with vinegar and baking soda before recording the...
Concord Consortium
What Is a Chemical Reaction?
Take your class inside a beaker for an up-close view of a chemical reaction! Junior chemists examine how chemical reactions occur using an interactive resource. The activity allows users to change the temperature and observe how it...
It's About Time
How Electrons Determine Chemical Behaviors
Lead the class on an investigation as they play detective and locate patterns in the electron arrangement of atoms. During the seventh lesson, they assign valence numbers to elements, organize the periodic table in the correct sequence,...
American Chemical Society
Formation of a Precipitate
Conclude this chemical change unit by having your class combine two liquids that result in formation of a precipitate. The learners discover that chemical reactions result in new materials. Make sure to consider all of the preceding...
Curated OER
Chemical and Physical Changes Homework
In this chemical and physical change instructional activity, students determine if 5 statements are examples of chemical or physical changes. At home they find 1 example of a chemical change and 1 example of a physical change. They...
Curated OER
Activity #13 Changing The Look of Sugar
Students observe what happens when sugar is dissolved in water and when it is heated. They weigh the products after each of the two experiments on a balance scale. Pupils distinguish between physical and chemical changes. Students are...
Curated OER
Heat Loss and Gain in Physical Changes and Chemical Reactions
Students measure the heat of physical and chemical changes in reactions. In this chemistry lesson students determine at what extent changes emit or absorb heat.
Curated OER
Changes in Matter
Eighth graders, in groups, explain the difference between physical and chemical changes.
Curated OER
Changes in Nature
Fifth graders explore changes in nature. They identify chemical and physical changes in the water cycle, carbon cycle, and weathering. Students explore a chemical or physical change based on a chemical formula. They examine the effects...
Curated OER
Physical vs. Chemical
In this physical vs. chemical change worksheet, high schoolers answer 10 questions about identifying chemical and physical changes. They identify exothermic and endothermic reactions and the parts of a chemical equation. Students answer...
Curated OER
Ice Cream Chemical and Physical Changes
Fourth graders identify characteristics of a simple physical and chemical change. They describe objects by the properties of the materials from which they are made and that these properties can be used separate. Students describe the...
Curated OER
Matter
Students recognize that some changes to matter are reversible and some are not. In this matter lesson plan, students experiment a physical and chemical change. Students record experiment results in their science journals. Students act...
Curated OER
Fizzy Pop
Fifth graders compare and identify variables that affect the rate of a chemical change using Alka-Seltzer, water, ice, and hot water. They time how long each variable takes to pop the canister into the air, and record the results on a...
Curated OER
Oxidation and Reduction
Students investigate oxidation and reduction reactions. In this oxidation and reduction lesson plan, students construct an electroplating device and perform an oxidation/ reduction reaction. Students describe the chemical changes that...
Curated OER
Fermentation of Apple Cider
Seventh graders investigate the fermentation process and the chemical changes that take place. In this fermentation lesson plan, 7th graders mix extracted apple juice with yeast and sugar water and observe the reaction over the course of...
Santa Monica College
Chemical Equilibrium and Le Chatelier’s Principle
Henri-Louis Le Chatelier wrote many papers throughout his 85-year life, but he is remembered for one of his earliest discoveries, now known as Le Chatelier's Principle. The final lesson in an 11-part series encourages young chemists to...
Pingry School
Qualitative Analysis of Eleven Household Chemicals
Chemical and physical properties give compounds an identity. Learners use the identity of a compound to predict what it is. By performing different tests like solubility, flame, heat, and reactions, individuals attempt to identify an...
Chicago Botanic Garden
Climate Change Impacts on Ecosystem Services
The fourth activity in a series of five has classes participate in a jigsaw to learn about global impacts of climate change and then share their new information with a home group. Groups then research impacts of climate change (droughts,...
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