About This Chapter
Who's it for?
This unit of our Middle School Physical Science Homeschool course will benefit any student who is trying to learn about chemical reactions and their properties. There is no faster or easier way to learn about reactions. Among those who would benefit are:
- Students who require an efficient, self-paced course of study to learn chemical reactions, types of phase changes and differences among types of solutions.
- Homeschool parents looking to spend less time preparing lessons and more time teaching.
- Homeschool parents who need a science curriculum that appeals to multiple learning types (visual or auditory).
- Gifted students and students with learning differences.
How it works:
- Students watch a short, fun video lesson that covers a specific unit topic.
- Students and parents can refer to the video transcripts to reinforce learning.
- Short quizzes and a reactions unit exam confirm understanding or identify any topics that require review.
Reactions Unit Objectives:
- Define chemical reactions.
- Demonstrate how to balance chemical equations.
- Use reactant atoms and molecules to explain how chemical reactions form new substances.
- List the six types of phase changes.
- Describe the processes of evaporation, condensation, freezing, melting, sublimation and deposition.
- Describe acidic, basic and neutral solutions.
- Explain how to determine the pH of a solution.
1. Chemical Reactions and Balancing Chemical Equations
In this lesson, you'll learn how to balance a chemical reaction equation using the conservation of matter law. You'll also learn how to write both word and formula equations, what the subscripts after a letter mean and what the numbers in front of compounds mean.
2. How Chemical Reactions Form New Products
After watching this video, you will be able to explain what a chemical reaction is and how the products can have completely different properties to the reactants. A short quiz will follow.
3. Phase Change: Evaporation, Condensation, Freezing, Melting, Sublimation & Deposition
Substances on Earth can exist in one of four phases, but mostly, they exist in one of three: solid, liquid or gas. Learn the six changes of phase: freezing, melting, condensation, vaporization, sublimation and deposition.
4. Acidic, Basic & Neutral Solutions: Determining pH
After watching this video, you will be able to explain the difference between acidic, basic, and neutral solutions and explain the concept of pH. A short quiz will follow.
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Other chapters within the Middle School Physical Science: Homeschool Curriculum course