Understanding Chemical Reactions Grade 10 Past Paper PDF
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Uploaded by Deleted User
2024
Monsha
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Summary
This document is a set of presentation slides covering chemical reactions for a Grade 10 class. It introduces chemical reactions, distinguishes between chemical and physical changes, and discusses the historical development of chemical reactions. The presentation also covers basic concepts and includes a formative assessment section.
Full Transcript
Presentation Slides Date: 2024/11/25 \| Grade Level: Grade 10 \| Language: English Slide 1: Introduction to Chemical Reactions \- Chemical reactions involve the transformation of substances. \- Reactants are the starting materials in a reaction. \- During a reaction, atoms are rearranged to cre...
Presentation Slides Date: 2024/11/25 \| Grade Level: Grade 10 \| Language: English Slide 1: Introduction to Chemical Reactions \- Chemical reactions involve the transformation of substances. \- Reactants are the starting materials in a reaction. \- During a reaction, atoms are rearranged to create new products. \- These reactions are crucial in everyday life and technology. Include an image of a burning log to demonstrate a chemical reaction. Slide 2: Distinguishing Chemical and Physical Changes \- Chemical changes result in new substances; physical changes do not alter chemical identity. \- Example: Ice melting is a physical change; sodium reacting with water is a chemical change. \- Chemical changes involve breaking and forming bonds. \- Physical changes are often changes in state, like solid to liquid. Add a diagram to compare chemical and physical changes. Slide 3: Historical Development of Chemical Reactions \- The study of chemical reactions began over 250 years ago. \- Antoine Lavoisier introduced precise measurement techniques. \- John Dalton\'s atomic theory explained how reactions occur. \- Modern chemistry relies on both experimentation and theory. Include portraits of Lavoisier and Dalton to highlight their contributions. Slide 4: Basic Concepts of Chemical Reactions \- Synthesis reactions create new substances from simpler ones. \- Law of Conservation of Mass: mass is conserved in reactions. \- Chemical equations must be balanced to reflect this law. \- Example: Fe + S → FeS shows a simple synthesis reaction. Provide a visual example of a balanced chemical equation. Slide 5: Formative Assessment \- What distinguishes a chemical change from a physical change? \- Illustrate the conservation of mass with an example. \- How did Lavoisier impact the field of chemistry? \- Describe what happens in a synthesis reaction. Include space for students to write their answers.
