Ukraine 7th Grade Chemistry Curriculum

This curriculum outlines the topics covered in 7th Grade Chemistry, based on the curriculum provided by the Ministry of Education and Science of Ukraine.

7th Grade (51 hours, 1.5 hours per week)

Introduction

• Chemistry as a natural science.
• Substances and their transformations.
• Brief history of chemistry.
• Student behavior in the chemistry classroom.
• Laboratory glassware and equipment.
• Labeling of hazardous substances.
• Safety rules.

Topic 1: Initial Chemical Concepts

• Physical objects, materials, and substances.
• Molecules and atoms.
• Studying substances: observation and experiment.
• Physical properties of substances.
• Pure substances and mixtures (homogeneous, heterogeneous).
• Methods for separating mixtures.
• Chemical elements, names, and symbols.
• Abundance of chemical elements in nature.
• Simple and complex substances.
• Diversity of substances.
• Metals and non-metals.
• Metallic and non-metallic elements.
• Valence of chemical elements.
• Writing formulas for binary compounds.
• Determining valence from formulas.
• Relative molecular mass and its calculation.
• Mass fraction of an element in a complex substance.
• Physical and chemical phenomena.
• Chemical reactions and accompanying phenomena.
• Chemical properties of substances.
• Law of Conservation of Mass.
• Chemical reaction schemes and equations.

Topic 2: Oxygen

• Air and its composition.
• Abundance of oxygen in nature.
• Oxygen molecule composition.
• Physical properties of oxygen.
• Obtaining oxygen: laboratory and industrial methods.
• Decomposition reaction.
• Catalysts.
• Methods for collecting oxygen.
• Proof of oxygen's presence.
• Chemical properties of oxygen: interaction with simple substances (carbon, hydrogen, sulfur, magnesium, iron, copper).
• Combination reaction.
• Oxides and oxidation (combustion, slow oxidation, respiration).
• Conditions for combustion.
• Interaction of oxygen with complex substances (methane, hydrogen sulfide).
• Oxygen cycle in nature.
• Ozone.
• Air pollution.
• Applications and biological role of oxygen.

Topic 3: Water

• Water molecule composition.
• Abundance of water in nature.
• Physical properties of water.
• Water as a solvent.
• Solutions and their components: solvent, solute.
• Quantitative composition of solutions.
• Mass fraction of solute.
• Solution preparation.
• Interaction of water with oxides.
• Acids and bases.
• Indicators.
• Importance of water and aqueous solutions.
• Acid rain.
• Water pollution.
• Water purification.

This information covers the core concepts of the 7th-grade chemistry curriculum. Additional details may be available through the Ministry of Education and Science of Ukraine.