Rainbow in a Jar STEM Experiment: Complete Lesson Plan & Worksheet! Grade 2+
By Teach with Ease Collection
Discover the fascinating concept of density with an engaging, hands-on activity—creating a colorful rainbow in a jar! This fun experiment allows learners to explore how different liquids layer based on their densities, making science both exciting and visually captivating. The below description discusses all that is inside in this newly-designed complete lesson plan...
Included Topics:
Introduction to Density
Learn how density determines whether substances float or sink, using everyday examples like oil and water. Students will understand the science behind layering liquids and how density creates separation.
Reading Passage: “What Is Density?”
A concise and engaging explanation introduces students to density concepts, including how heavier liquids sink and lighter ones rise. They’ll also learn how to create layers by carefully stacking liquids in a jar.
Hands-On Experiment: Create Your Own Rainbow in a Jar
Step-by-step instructions guide students to layer liquids such as honey, dish soap, water, oil and colored rubbing alcohol, creating a visually stunning rainbow while reinforcing density principles.
Interactive Worksheets and Observations
Students will track the experiment’s process using observation charts and answer thought-provoking questions about density. True/false and short-answer activities help solidify understanding of the concept.
Wrap-Up Discussion
Encourage students to share their results and reflect on their observations. They’ll connect their experiment to real-life examples, such as why certain objects float or sink.
Our Recommendation
This lesson plan blends science and art to make learning fun and interactive. A key highlight from the material is:
“By stacking liquids in a jar, students see how density works in action—turning a scientific concept into a colorful masterpiece.”
Students will develop their understanding of density, improve their observation skills, and enjoy a hands-on activity that sparks creativity.
Why This Resource Is a Must-Have
This engaging activity:
• Explains density in simple, relatable terms for young learners.
• Combines science and creativity to make learning fun.
• Includes a step-by-step guide, ensuring success for both students and teachers.
• Reinforces key scientific concepts with structured observation and reflection activities.
• Uses common household items, making it a low-prep, high-impact lesson.
• Encourages curiosity through hands-on experimentation.
Do purchase this, if the following is something you are looking for:
• A fun, interactive science experiment for grades 2-5+ (ages 8+).
• A hands-on activity that combines science and art, inspiring creativity.
• Ready-to-teach lessons with clear instructions and minimal prep.
• Worksheets and observation tools to support comprehension and reflection.
• Cross-curricular learning that blends STEM and critical thinking.
This resource delivers a memorable learning experience, making density an exciting topic for young scientists while providing teachers with a stress-free, engaging lesson plan.
Join us on a thrilling educational adventure with Real-World Reports – where knowledge meets excitement!
For permissions or inquiries, contact us through before purchase. Unauthorized use or reproduction is strictly prohibited.
Resource Information
• Pages: 12 Includes a Terms of Use (TOU) page, a “Get to Know Us” page, and all the engaging content you expect! Cover pages are NOT within this file!
• Ideal for Ages: students in grade 2-3+
• Teaching Duration: 1 complete class, depending on depth of exploration
• Download Now: This digital product is the full file at your fingertips!
Reminder: This resource is for single-classroom use only. Please refrain from sharing outside your class. Feel free to reach out with any questions before downloading. No refunds available on digital products.
NOTE: “We are not affiliated with or connected to any organizations or references mentioned in this document. This material is intended solely for educational purposes.”
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