Created byKristin Walrath
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Rainbow Vanishing Magic: Bleach & Color Science
KindergartenScience1 days
Rainbow Vanishing Magic is a kindergarten-level science project where students explore color changes through mixing food coloring with water and observing reactions when bleach is added. This project emphasizes the importance of conducting experiments safely, helping students to understand basic chemical reactions and enhance their observation, inquiry, and communication skills. Through hands-on activities and discussions, students learn about the effects of mixing substances and develop an understanding of safety procedures, aligned with NGSS standards for scientific observation and data analysis.Color MixingChemical ReactionsSafety ProceduresObservation SkillsInquiry-based LearningNGSS Standards
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Inquiry Framework
Question Framework
Driving Question
The overarching question that guides the entire project.How can we explore the changes in colors when we mix food coloring with other substances, like bleach, and what does this teach us about the importance of conducting safe experiments?Essential Questions
Supporting questions that break down major concepts.- What happens when we mix different liquids together?
- How can colors change when they are mixed with other substances?
- What do we observe when we add bleach to different colors?
- Why is it important to conduct experiments carefully and safely?
Standards & Learning Goals
Learning Goals
By the end of this project, students will be able to:- Understand the concept of chemical reactions through color change.
- Observe and describe the effects of mixing food coloring with bleach.
- Learn and practice basic safety procedures during experiments.
- Develop observation and inquiry skills in a scientific context.
- Communicate findings through discussion and drawing.
NGSS
K-PS1-1
Primary
Plan and conduct an investigation to describe and classify different kinds of materials by their observable properties.Reason: The project involves observing and describing the effects of mixing bleach with food coloring, allowing students to classify and observe changes in materials.
K-PS1-2
Secondary
Analyze data to determine if a design solution works as intended to change the speed or direction of an object with a push or a pull.Reason: The project includes the process of observing color changes when substances are mixed, fitting the analysis of changes as an intended design solution.
K-2-ETS1-1
Supporting
Ask questions, make observations, and gather information about a situation people want to change to define a simple problem that can be solved through the development of a new or improved object or tool.Reason: Students will be asking questions and making observations which aligns with the skill of gathering information to explore changes in substances.
Entry Events
Events that will be used to introduce the project to studentsMagic Color Change
Begin with a captivating demonstration where vibrant, multi-colored water turns clear in front of their eyes with the help of a 'magic potion' (bleach). Explain that they will be exploring the science behind why colors disappear and reappear.📚
Portfolio Activities
Portfolio Activities
These activities progressively build towards your learning goals, with each submission contributing to the student's final portfolio.Activity 1
Color Mixing Exploration
Students will start by observing what happens when different food coloring hues are mixed with water and then with other substances like bleach. This will motivate curiosity and guide them to investigate color mixing, which is fundamental to understanding chemical reactions.Steps
Here is some basic scaffolding to help students complete the activity.1. Pour clear water into a transparent cup for each food coloring shade.
2. Add a few drops of different food coloring into each cup and observe what happens.
3. Record the colors formed in a simple illustration or chart.
Final Product
What students will submit as the final product of the activityA basic illustration or chart showing the different colors that formed when food coloring was mixed with water.Alignment
How this activity aligns with the learning objectives & standardsThis activity aligns with NGSS K-PS1-1 as students will be observing and describing the effects of mixing materials by their observable properties.Activity 2
Magic Potion Observation
Students will observe the 'magic' of how bleach changes the vibrant colored water to clear, which helps them understand chemical reactions and emphasize the importance of safety while handling chemicals.Steps
Here is some basic scaffolding to help students complete the activity.1. Fill a cup with one of the colored water mixtures made earlier.
2. Add a small, supervised amount of bleach to the colored water.
3. Observe and discuss the changes happening in the cup.
Final Product
What students will submit as the final product of the activityAn oral description of what happened when bleach was added to the colored water, shared with peers during a class discussion.Alignment
How this activity aligns with the learning objectives & standardsThis activity aligns with NGSS K-PS1-2, as students analyze data to determine the effects of mixing substances and if a change occurs.Activity 3
Safety in Science
Through a guided conversation and demonstration, students will learn the importance of conducting experiments safely and how to handle items like bleach correctly.Steps
Here is some basic scaffolding to help students complete the activity.1. Introduce the concept of safety equipment such as aprons, gloves, and goggles through a playful role-play.
2. Discuss what steps they need to take in order to stay safe while conducting experiments.
3. Practice these safety steps by role-playing through a mini-experiment setup.
Final Product
What students will submit as the final product of the activityA group safety poster illustrating and describing key safety rules and equipment needed for experiments.Alignment
How this activity aligns with the learning objectives & standardsThis supports the learning goal of practicing basic safety procedures and aligns with NGSS K-2-ETS1-1.🏆
Rubric & Reflection
Portfolio Rubric
Grading criteria for assessing the overall project portfolioKindergarten Science Experiment with Colors
Category 1
Scientific Observations and Descriptions
Evaluates students' ability to observe changes and describe what happens during the experiment.Criterion 1
Observational Skills
Measures how well students observe and record the effects of mixing food coloring with other substances, with an emphasis on accuracy and detail.
Exemplary
4 PointsProvides detailed and accurate observations including specific color changes and sequence of events.
Proficient
3 PointsProvides clear observations including major color changes observed during the experiment.
Developing
2 PointsProvides basic observations with limited detail on color changes.
Beginning
1 PointsProvides incomplete observations with little or no detail.
Criterion 2
Communication of Findings
Assesses students' ability to communicate their observations and experiment results effectively through speech or drawings.
Exemplary
4 PointsCommunicates findings comprehensively through clear speech and detailed illustrations.
Proficient
3 PointsCommunicates findings effectively with understandable explanations or drawings.
Developing
2 PointsCommunicates findings with minimal explanation or detail in drawings.
Beginning
1 PointsStruggles to communicate findings without sufficient clarity or detail.
Category 2
Safety Practices
Evaluates the understanding and application of safety procedures during experiments.Criterion 1
Safety Awareness
Assesses students' awareness and understanding of basic safety rules demonstrated through role-play and discussions.
Exemplary
4 PointsDemonstrates excellent understanding and consistent application of safety practices and proper use of equipment.
Proficient
3 PointsDemonstrates good understanding and mostly applies safety practices correctly.
Developing
2 PointsShows basic understanding of safety practices with occasional reminders needed.
Beginning
1 PointsHas limited understanding of safety practices, frequently requires guidance.
Reflection Prompts
End-of-project reflection questions to get students to think about their learningQuestion 1
What was your favorite part of the Disappearing Rainbow experiment and why?
Text
Required
Question 2
How did the colors change when bleach was added to the food coloring, and what did you learn from this?
Text
Required
Question 3
On a scale from 1 to 5, how confident do you feel about conducting experiments safely after learning about safety equipment and procedures?
Scale
Required
Question 4
Why is it important to conduct science experiments safely, and what rules should we always follow?
Text
Required
Question 5
Which safety equipment do you think is the most important to use during our experiments, and why?
Multiple choice
Required
Options
Goggles
Gloves
Apron
All are equally important