Curated OER
Chemical Reactions
In this reactions worksheet, young scholars state the differences between a coefficient and subscript and an exothermic and endothermic reaction. Students review the different types of reactions. This worksheet has 13 short answer...
Curated OER
Identifying Reaction Types
In this reactions activity, students are given nine chemical reactions to identify as single replacement, double replacement, synthesis or decomposition reactions.
Cornell University
Build a Fuel Cell
Discover the connection between redox reactions and fuel cells. Collaborative groups build a Hoffmann Apparatus that demonstrates the electrolysis of water and then convert their models into a fuel cell. They use their fuel cells to...
Cornell University
What Is Rust?
Why do metals rust differently? Scholars experiment with metal combinations in a hands-on activity. They create unique environments with different metals and compare the rate and amount of rust for each.
Curated OER
Chemistry 1 Practice Exam
Thirty multiple-choice questions and their answers are provided in this resource. It was written for a general chemistry course and queries test takers on scientific notation, mixtures, chemical symbols, electric charges, Dalton's atomic...
Curated OER
Everything about Equations
In this chemical reactions worksheet, students are given fifteen unbalanced equations and they must identify the reaction types, the phases of the products, the signs that a chemical change occurred and the sum of the coefficients of the...
Curated OER
Reaction Types and Stoichiometry
In this chemical reactions worksheet, students balance chemical reactions and identify each type of reaction. Students write the net ionic equation for reactions. Students calculate moles and grams of reactants or products. This...
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Concentration and Reaction Rates
Learners investigate how varying the concentrations, volumes, and other factors affects reaction rates. Students design and conduct investigations to obtain data used to create graphs of an uncatalyzed reaction vs. a catalyzed reaction....
Curated OER
Balancing Equations and Identifying Reaction Types
In this balancing equations worksheet, students balance twelve equations by placing the proper coefficients in front of reactants and products and they identify the type of reaction each equation represents.
Curated OER
Starch is Everywhere
In this science worksheet, students add a few drops of iodine solution to each of 10 substances to determine if they contain starch. The iodine will turn blue if the item contains starch.
Curated OER
Physical and Chemical Changes Crossword
In this chemistry worksheet, learners complete a crossword puzzle with 15 clues about both physical and chemical changes. Each clue lists number of letters for correct word.
Curated OER
Answers for Physical and Chemical Changes Crossword
In this chemistry instructional activity, students are provided with the answers for a crossword puzzle containing 15 clues about physical and chemical changes.
LABScI
Photosynthesis: How Do Plants Get Energy?
Examine the mechanism of photosynthesis through different light scenarios. Pupils vary the amount and type of light exposure on plant leaves in the fifth lesson plan in a 12-part series. Through observation, they determine the rate of...
Curated OER
Activity #19 Oxygen For Yeast
Students observe and record what occurs when yeast is added to hydrogen peroxide. They indicate why a chemical reaction (decompostion) must have occurred during the experiement. Pupils explain why yeast was used. Students comprehend the...
Curated OER
Additional Aqueous Solution Review Problems
In this solutions worksheet, students balance chemical equations, classify reactions by the type of reaction it represents, and review the solubility rules. Students practice working out double displacement, neutralization, and dilution...
Curated OER
Photosynthesis
In this photosynthesis worksheet, students complete 20 various types of questions related to photosynthesis. First, they match each description in the first column with the correct vocabulary term in the second. Then, students explain...
Curated OER
Chemistry of Fire
In this science worksheet, learners are involved in questions about the events that cause and sustain fires. The chemistry of fire is the primary focus.
Curated OER
Activity #18 Decompostion of Baking Soda
Middle schoolers observe what occurs as baking soda is heated. They explain why a chemical rather than a physical change occurred during the procedure. Pupils identify the tpe of reaction (decomposition). Students conduct a glowing...
Curated OER
Crazy Chemistry Lesson Plan
Students study water molecules, cohesion and surface tension. For this molecule cohesion lesson students create chemical reactions that cause a balloon to inflate and another one that results in soap suds.
Curated OER
Chapter 17 Worksheet- Equilibrium
In this equilibrium worksheet, students answer eleven questions about chemical reactions, equilibrium concentrations and endothermic and exothermic reactions. They write equilibrium expressions for chemical reactions and they explain...
Curated OER
Decomposition vs. Synthesis Reaction
Middle schoolers define the term chemical reaction, identify the reactants and products in a chemical reaction, distinguish between decomposition and synthesis reactions and construct reactions using food items.
Curated OER
How Are The Properties of Covalent Compounds Influenced By Chemical Bonding?
Students work together to observe the bond lengths of single, double and triple bonds. They make their own predictions about the strength of the bonds and chemical reactions. They answer discussion questions to complete the lesson.
Curated OER
Stoichiometric Relationships
In this reactions worksheet, students learn how to solve stoichiometric problems based on the mole ratios of a balanced equation. Then students complete 7 problems.
Curated OER
Blast Off!
Fourth graders investigate the third law of motion. In this third law of motion lesson, 4th graders explore the forces necessary for a rocket to launch. Students compare and contrast propellant and fuel. Numerous resources are provided.