Chemistry

Description: In this lab activity, students observe how the formation and dissolution of iron(III) hydroxide precipitate depends on the acidity (pH) of the medium. By adding baking soda and acetic acid, students model the shift in chemical equilibrium in accordance with Le Chatelier’s principle. Long-term Plan Section Standard Curriculum Subsections Learning Objectives: Chemical equilibrium Influence of various factors on equilibriumLe Chatelier-Braun Principle 10.3.3.1 – Predict the effect of changes in temperature, concentration, and pressure on chemical equilibrium 10.3.3.2 – Experimentally investigate the influence of various factors on equilibrium shifts

Description:  In this lab work, students investigate the chemical properties and reactions of various carbohydrates: glucose, starch, and sucrose. Qualitative reactions will be performed to identify their reducing properties and their ability to undergo hydrolysis. Long-Term Plan Section Standard Curriculum Subsections: Learning Objectives: Chemistry of Living Systems Structure, Properties, and Uses of Carbohydrates 11.5.1.11 – perform a qualitative test for starch11.5.1.12 – name the hydrolysis products of sucrose, starch, and cellulose11.5.1.13 – compare the structure and properties of starch and cellulose

Description: In this lab work, students investigate the chemical properties of acetic acid – one of the most well-known carboxylic acids.

Description: In this lab, students will conduct the well-known “Elephant Toothpaste” experiment, which serves as a vivid demonstration of a catalytic reaction.

Description: In this lab work, students build models of molecules with covalent bonds: nitrogen (N₂), oxygen (O₂), and diamond (C). The activity includes hands-on modeling using clay and toothpicks, as well as constructing 3D models using the MolView online platform. Students explore types of covalent bonding, hybridization, and the relationship between molecular structure and properties.