Curated OER
Can Chromatography Separate A Pigment?
High schoolers separate a mixture of pigments with ion exchange chromatography and predict whether the ion-exchange matrix is positively or negatively charged based on the type of pigment bonded to the matrix.
Curated OER
Proteins
As long as you have some support information to answer questions that may come up from students, this is an excellent PowerPoint to cover almost all aspects of protein structure and ionization. The sequence of slides has great images and...
American Chemical Society
Why Does Water Dissolve Sugar?
Did you know that if you wait long enough, the M on the outside of an M and M will float to the surface when submerged in water? Learners observe the sugar coating of an M and M while it is dissolving in water. They explain how this...
American Chemical Society
Temperature Changes in Dissolving
Alia-Seltzer tablets cause a very obvious chemical change, but do they also cause a temperature change? Each class member explores hot/cold packs, discussing how these temperature changes occur. Groups then design and carry out their own...
Curated OER
Water - the (Nearly) Universal Solvent
In this solvent worksheet, students explore why water is considered a universal solvent. Students explore what can change dissolving rates. This worksheet has 8 matching, 3 short answer, 11 fill in the blank, and 4 problems to solve.
Curated OER
AP Chemistry Chapter 9
In this AP Chemistry worksheet, students apply concepts of electron configuration to accurately answer the questions provided. Students also draw Lewis structures of the given elements. Students estimate the enthalpy of formation as well...
Curated OER
Biologically Important Molecules
In this biologically important molecules worksheet, students fill in the blank with information about carbohydrates, lipids, and proteins. Students also make notes about nucleic acids.
Biology Junction
Water, Solutions, pH, and Buffers
What common chemical includes safety warnings for being harmful if swallowed or inhaled, causes serious eye damage, and needs to be cleaned up immediately if spilled on the floor? Surprisingly, the dangerous chemical turns out to be...
Santa Monica College
Lewis Structures and Molecular Shapes
Learners practice drawing Lewis dot structures, build molecules with model kits, and predict molecular shapes using VSEPR theory. The combination of written work and hands-on reinforcement benefits young scientists.
Virginia Department of Education
Mystery Anions
Lost an electron? You should keep an ion them. Young chemists learn qualitative analysis in the second instructional activity of an 11-part chemistry series. After observing reactions of simple salts, the teacher provides pupils with...
National Institute of Open Schooling
Aldehydes, Ketones and Carboxylic Acids
Although their name makes them sound dangerous or toxic, carboxylic acids are found throughout nature in things such as citric acid, vinegar, and even in your DNA. Through detailed readings, discussions, and answering questions...
American Chemical Society
Why Does Water Dissolve Salt?
Individuals explore solubility by modeling how water dissolves salts. They then view a video and compare how well water and alcohol dissolve salts, relating their comparisons to the structure of each molecule.
Curated OER
Stereoisomers
Students investigate stereoisomers using models that can be rotated and manipulated. In this stereoisomers lesson plan, students try to make models of molecules look alike by rotating the bonds. Using a mirror, the teacher demonstrates...
Curated OER
Solubility and Intermolecular Forces
For this solubility and intermolecular force worksheet, students are given 26 clues about forces between molecules such as hydrogen bonds and London forces and about solubility of solutions.
SRI International
Science of Water
Water is crucial to survival. Scholars gain an appreciation for water by reading about it, learning about its atomic properties, and investigating its properties through six stations in a lab activity.
Curated OER
Life Processes and Water
Explain the properties of water. Identify the properties of water that make it a polar molecule Describe hydrogen bonds and how they differ from covalent bonds Discuss the differences between hard water and soft water Compare the heat of...
Curated OER
The Chemistry of Water
Students investigate the properties of water. In this chemistry of water lesson plan, students observe a demonstration of the properties of water using sand, sugar, oil, vinegar and salad dressing. Students experiment with water, pepper,...
Curated OER
Combining Atoms
In this atoms worksheet, learners explore the different types of bonds, name compounds, and determine charges of molecules. This worksheet has 8 true or false, 9 fill in the blank, and 5 short answer questions.
Curated OER
Molecular Modeling Activity
Students work together to explain the VSEPR theory and how it relates to molecules. They name electron pairs that can surround the central atom of an organism. They discuss the factors that determine the polarity of a molecule as well.
Curated OER
Water and Diffusion
In this water and diffusion learning exercise, students will explore the characteristics of water and the water molecule. Students will also answer questions about diffusion and the movement of materials due to concentration differences....
Curated OER
Covalent Compounds Worksheet
In this chemistry worksheet, students examine the concept of covalent bonds with the assessment. The answer key is included on page 3 and 4.
Curated OER
Lewis Structure Worksheet
In this chemistry worksheet, students draw the Lewis structures of 9 compounds and polyatomic ions, identify their molecular shapes and polarity.
Curated OER
Biochemistry Assignment
In this biochemistry worksheet, students complete a table by filling in the missing information about different elements. Students draw the Bohr diagram and the Lewis dot diagram for several atoms.
Curated OER
Solubility of Ionic Substances
For this solubility worksheet, students identify substances as either ionic or molecular, define saturated solution and solubility, and calculate concentration of solutions. This worksheet has 7 short answer, 5 fill in the blank, and 27...