American Chemical Society
Does Temperature Affect Dissolving?
When making sweet tea, why do people dissolve the sugar in hot tea instead of cold tea? The class discusses the previous lab and builds upon it. Working in groups, they design an experiment to determine how temperature affects the...
Teach Engineering
What is a Nanometer?
Teams learn about the size of a nanometer by measuring objects and converting those measurements. A worksheet then tests the groups' abilities to use nanometers by having them determine the size of objects that are too small to...
Curated OER
The Great Gas Race
Fourth graders improve their understanding of Graham's Law by using properties of gases to evaluate the rate of effusion of two compounds as they vaporize. They engage in a lab which elevates their understanding of the properties of gases.
Curated OER
The Connection Between Pigment and Light Colors
Students explain the mole concept and use this concept to prepare chemical solutions of particular molarities.
Curated OER
Stellar Fingerprints: the Spectra of Stars
Students explain how an element can be identified using emission spectra. They relate the emission spectrum of hydrogen to its absorption spectrum and identify hydrogen absorption lines in the spectrum of stars.
Curated OER
Pyrotechnics for Pyromaniacs
Students explore how chemistry is associated with the annual celebration of America's independence. They learn what gunpowder is made of, the anatomy of a firework, how noise is made in fireworks and the safety issues.
Curated OER
Chemical Formulas and Naming
Students practice naming and writing formulas for simple chemicals. After a review of vocabulary, they create ion flash cards and discuss the rules for writing chemical compounds. They practice naming and writing the formulas based on...
Curated OER
Water Cycle
Young scientists explore Earth elements by conducting an experiment. They define water vocabulary terms such as condensation and precipitation. In addition, they conduct a water experiment in which they build a terrarium, so they can...
Curated OER
Ratio and Proportion
In this ratio and proportion worksheet, students solve 22 short answer and multiple choice problems. Students use rates, proportions, and ratios to solve each problem.
Curated OER
Water Cycle Activity
Learners build a model and observe the cycle of evaporation and condensation that occurs in the water cycle. They see how the water cycle works, such as water condensing on the side of the jar and drops precipitating into rain that...
Curated OER
Writing Lewis Structures
In this Lewis structures worksheet, students read about drawing Lewis structures and how to identify valence electrons. They draw Lewis structures for eight given compounds.
Curated OER
Lipid Worksheet
For this lipid worksheet, students answer questions about the structure and functions of lipids. They read about the three main lipids in the body including triglycerides, phospholipids and cholesterol and answer questions about each.
Curated OER
Periodic Table
Young scholars identify the periodic table trends and predict material properties. They also design and conduct simple experiments and test material properties. Finally, students compare and contrast material properties and that...
Curated OER
Causal Patterns in Density Phenomena
Students consider the causes of density at a microscopic level. They then discover that one cause of density has to do with how many protons and neutrons the material contains.
Curated OER
Chemicals, Chemicals, Everywhere
High schoolers divide substances into categories: made of chemicals/not made of chemicals, synthetic/naturally occurring, and toxic/nontoxic. They observe a mystery chemical and determine what precautions they need to take when handling...
Curated OER
The Physical Behavior of Matter
Learners distinguish between three phases of matter: solid, liquid and gas, on the molecular level. They compare and predict the relative compressibility of the three phases of matter through journal writings and drawings.
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
Science: What Happens to Create the Lode?
Learners understand how mineral deposits are formed and why they are not evenly dispersed. They create and describe three different precipitates from four solutions simulating mineral ore deposit formation in sedimentary rock.
Curated OER
EGG-cellent POLYMER PACKAGING DESIGN
Young scholars investigate the concept of a polymer using an experimental design of protecting an egg in a bookbag. They test the properties of polymers and form an educated solution to the proposed problem. Then they describe the steps...
Curated OER
Elements and Compounds Vocabulary Quiz
In this science vocabulary worksheet, learners draw lines to match 9 words pertaining to elements and compounds to their definitions.
Curated OER
Elements and Compounds Vocabulary List and Definitions
In this chemistry learning exercise, students read ten vocabulary words and definitions pertaining to elements and compounds. There are no questions to answer.
Curated OER
Putting on Mass: Just how do Trees grow?
Students articulate an explanation of photosynthesis. They identify problems they have with comprehension of how a plant gains mass. Students describe a historical experiment.
Curated OER
Drifting Continents, Dynamic Results
Students plot earthquake and volcano data using a Compass Rose Plotting. They explain the relationship between plate movement and connection. They draw conclusions that earthquakes and volcanoes occur in predictable locations.
Concord Consortium
Concord Consortium: Stem Resources: Electrons in Atoms and Molecules
A module with animations, explanations, and questions about the importance of electrons in the structure of an atom. Understand the definition and locations of electrons in the atom. Explore the role of electrons in bonding, polarity,...