Welcome to Week 3 of Year 7 Chemistry! This week, you will discover the Periodic Table—a tool that organizes all the elements that makeup everything in the universe. You’ll learn how it works, explore the patterns it reveals, and create your own colour-coded periodic table.
Hour 1: Discovering the Periodic Table
Learning Objectives
By the end of this hour, you will:
Understand how the Periodic Table is organized.
Learn about the groups and periods on the table.
Read and Watch
Read: Pages 28-32 "What's Chemistry all About?".
Read : "The Periodic Table" and "Using the Periodic Table" from "How to Make a Universe with 92 Ingredients". Pay attention to how the table organises elements by their properties.
Watch: Periodic Table Song to understand the basics of the table.
Explore: Use the interactive Periodic Table at Ptable.com to learn more about each element.
Task: Periodic Table Patterns
Write down three patterns you notice about the elements in the Periodic Table (e.g., metals on the left, non-metals on the right, groups that have similar properties).
Hour 2: Color-Coding the Periodic Table
Learning Objectives
By the end of this hour, you will:
By the end of this hour, you will:
Identify metals, non-metals, and metalloids.
Understand the significance of groups and periods.
Practical Activity: Create a Color-Coded Periodic Table
What You Need:
A printed or drawn Periodic Table.
Coloured pencils or markers.
Steps:
Colour the metals (e.g., blue), non-metals (e.g., green), and metalloids (e.g., yellow).
Highlight Groups 1 (alkali metals), Group 7 (halogens), and Group 0 (noble gases) in distinct colours.
Add a legend to explain your colour choices.
Task: Reflection
Write a few sentences about why organising elements in this way is helpful for scientists.
Hour 3: Dmitri Mendeleev and His Genius
Learning Objectives
By the end of this hour, you will:
Learn about Dmitri Mendeleev and how he created the Periodic Table.
Reflect on the importance of organizing scientific knowledge.
Read and Watch
Read: A biography of Dmitri Mendeleev from "Scientists and their discoveries" pages 20-21.
Watch: The Genius of Mendeleev (YouTube) for a quick overview of his contributions.
Task: Mendeleev’s Legacy
Write a paragraph summarising how Mendeleev predicted elements that hadn’t yet been discovered.
Reflect: What does his work teach us about the power of patterns in science?
Quick Activity: Element Discovery Timeline
Use your books and the internet to create a mini timeline showing the discovery of three elements that Mendeleev predicted.
Summary and Reflection
Reflect on the Week:
What surprised you most about the Periodic Table?
How do you think Mendeleev’s table helped scientists in the past and today?
Can you find one element on the table and research how it’s used in everyday life?
Looking Ahead: Next week, we’ll explore the differences between elements and compounds. Get ready for some hands-on experiments to separate mixtures and create your own compounds!
That's it for week 3!
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