Understanding and expressing emotions can be challenging for young children, but it’s an essential part of their development. Helping kids identify and label their emotions not only enhances their emotional intelligence but also promotes better communication and social skills. One creative and interactive way to teach children about emotions is through a fun, hands-on activity called “Tubes of Emotion.” This activity, which uses simple household materials, offers a visual and engaging way for children to explore their feelings and associate colors with emotions. It’s an innovative twist on the classic baking soda and vinegar experiment that incorporates emotional education in a way that kids can relate to and enjoy.
In this article, we will explore how the “Tubes of Emotion” activity works, why it’s beneficial for children’s emotional development, and how it can be a fun and educational way to build emotional vocabulary and support social-emotional learning.

The Emotional Twist on a Classic Science Experiment
The traditional baking soda and vinegar experiment is a popular hands-on science activity that uses a simple chemical reaction to create bubbles and eruptions. However, with a little creativity, this experiment can be transformed into an emotionally rich learning experience. By associating colors with specific emotions and using visual cues like facial expressions on paper rolls, children can learn to recognize and label their feelings while engaging in a fun science activity.
The Tubes of Emotion activity provides children with a chance to explore emotions in a way that is both educational and exciting. The eruption of colors and fizzing reactions help children visually connect with emotions, making the abstract concept of feelings more tangible and easier to understand.
Materials Needed for Tubes of Emotion
This activity is simple to set up, requiring just a few household materials that can be easily sourced. Here’s what you’ll need:
- Recycled Paper Rolls (such as toilet paper or paper towel rolls cut into thirds)
- Black Marker (for drawing facial expressions)
- Baking Soda (2 tablespoons per roll)
- Food Coloring (to represent different emotions)
- Vinegar (for the eruption effect)
- Optional: A tray to catch spills and a dropper for fine motor practice.
Once you have all the materials ready, you can begin creating the Tubes of Emotion!
Step-by-Step Instructions for the Tubes of Emotion
- Prepare the Paper Rolls: Take the recycled paper rolls and use the black marker to draw a face on each one that represents a specific emotion. For example, you might draw a smiling face on one roll for happiness, a sad face on another for sadness, and a frustrated face for anger. The visual representation helps children associate emotions with facial expressions.
- Set the Tubes Up on a Tray: Arrange the paper rolls upright on a tray. This setup will contain any spills that may occur during the experiment and make the activity more organized.
- Add Baking Soda: Carefully place 2 tablespoons of baking soda into each roll. This will be the base that reacts with the vinegar to create the eruption.
- Add Food Coloring: Drop a small amount of food coloring on top of the baking soda. Choose colors that represent each emotion. For example:
- Yellow for happiness
- Blue for sadness
- Red for anger
- Green for fear or disgust
- Purple for another emotion such as surprise or confusion
- Start the Eruption: Pour a small amount of vinegar (or a mixture of vinegar and water for longer reactions) into the tube and watch the eruption! The combination of baking soda and vinegar will cause a fizzy, bubbly reaction, and the food coloring will create a visually striking representation of the emotion.
- Observe and Discuss: As the colors bubble up, engage the children in a discussion about what emotion the color and facial expression represent. Encourage them to express how they feel when they see the reaction, helping them to identify and name their emotions.
Exploring the Emotions Through Color
Colors are often strongly associated with emotions, and using them in this activity helps children visually connect their feelings to the colors they see. For example:
- Yellow (Happiness): Yellow is often linked with joy and happiness because it’s bright, cheerful, and energizing. When children see yellow bubbling out of the tube, they can connect that feeling of lightness to moments that make them happy.
- Blue (Sadness): Blue, in many contexts, is associated with sadness. Think of the phrase “feeling blue” or how tears are often depicted in blue tones. By using blue in the activity, children can explore the idea of sadness and learn that it’s okay to feel this way sometimes.
- Red (Anger): Red represents strong emotions like anger or frustration. When children see the red eruption, they can learn that anger is a normal emotion, and it’s important to recognize and handle it constructively.
- Green (Fear or Disgust): Green is often used to represent fear or disgust, as seen in expressions like “green with envy” or when feeling ill. Teaching children to recognize this color helps them understand that it’s normal to feel scared or unsettled at times, and they can learn to manage these feelings.
- Purple (Surprise or Confusion): Purple can symbolize surprise or confusion, two emotions that children may experience when things don’t go as expected. This color helps introduce kids to the idea of unexpected emotions and the importance of processing surprises.
Helping Kids Build Their Emotional Vocabulary
One of the most valuable aspects of the Tubes of Emotion activity is its ability to help children build a richer emotional vocabulary. When kids are taught to recognize the many different emotions they experience, they gain a better understanding of how to express themselves effectively. As children identify emotions, they not only learn the associated words but also the context and situations in which they may feel those emotions.
For example, while yellow may represent happiness, it can also serve as a gateway for discussing other forms of positive emotions such as excitement or pride. Similarly, blue may not only represent sadness but can also encompass feelings of loneliness or disappointment. By broadening their emotional vocabulary, children can learn to articulate their feelings more clearly and gain insight into the reasons behind those feelings.
Social-Emotional Learning Benefits
Social-emotional learning (SEL) is the process through which children learn to understand and manage their emotions, set positive goals, show empathy for others, establish positive relationships, and make responsible decisions. The Tubes of Emotion activity fits perfectly into this framework by:
- Encouraging Emotional Expression: By allowing children to identify and express different emotions, the activity promotes emotional awareness and self-regulation.
- Promoting Empathy: As children observe the various emotions represented in the tubes, they gain a better understanding of how others might feel in different situations. This cultivates empathy and emotional understanding, key components of SEL.
- Building Problem-Solving Skills: The activity also provides a platform for discussing coping strategies for managing emotions. For instance, if a child feels anger (red), you can talk about ways to calm down, such as taking deep breaths or using words to express how they feel. These problem-solving skills are crucial for emotional regulation.
- Fostering Positive Relationships: As children engage with the activity and learn to express their emotions, they develop the language and confidence to communicate with others. This is an important skill for building strong, healthy relationships with peers, family, and teachers.
Enhancing Fine Motor Skills
In addition to being an educational and emotional experience, the Tubes of Emotion activity also offers an opportunity for children to practice fine motor skills. If you choose to use droppers or pipettes for adding the vinegar to the tubes, children can practice their hand-eye coordination and fine motor control. This adds an extra layer of learning and makes the activity even more engaging for younger children, such as toddlers or preschoolers.
Conclusion: A Fun and Effective Way to Learn About Emotions
The Tubes of Emotion activity is a creative, hands-on way to teach kids about emotions while also providing a fun science experiment. By associating colors with emotions and using the eruption reaction to reinforce emotional expressions, children can better understand and identify their feelings. This activity helps them build a richer emotional vocabulary, learn emotional regulation strategies, and develop empathy for others—all crucial components of social-emotional learning.
Whether at home or in the classroom, the Tubes of Emotion activity offers a fun and engaging way for kids to explore their emotions, making it a valuable tool in emotional development. It empowers children to recognize their feelings, express themselves confidently, and understand that emotions are a natural part of life.
