Magical Rainbow

  • STEAM Event Summary

    In this 3-stage STEAM program, 2nd-grade students explore the science of rainbows through storytelling and hands-on experiments. Children use mirrors, CDs, and water spray bottles to investigate how light and water interact to create different colors. The activity builds critical thinking and curiosity as students observe natural phenomena and test their own scientific ideas. Students develop problem-solving and flexibility skills by adjusting their tools and light sources to get the best results. The project concludes with artistic drawing and group reflection, helping children value nature and think step-by-step like scientists.

    SPIRIT Skill Focus

    • Critical thinking
    • Problem-solving
    • Creativity
    • Curiosity, sense of wonder and openness
    • Valuing people and nature

    Basic Information Sheet

    Age groupStudent numberDurationNumber of stages Subjects connection and relevance
    2nd grade studentsWhole class
    (max. 20-25 students)    		3 x 45 minutes3 stagesScience, Technology, Engineering, Arts, Mathematics

    In this STEAM activity, teachers guide second-grade students in exploring the natural phenomenon of rainbows through storytelling, hands-on experimentation, and creative expression. Students investigate how light and water interact by working with simple tools such as mirrors, water, spray bottles, CDs, and prisms. Through guided inquiry, observation, and discussion, children move from curiosity and questions toward basic scientific explanations, while also expressing their understanding through art. The activity is multi-sensory, inquiry-based, and age-appropriate, supporting early scientific thinking, creativity, collaboration, and reflective learning.

    National curriculum Link and Objectives

    • Science / Environmental Studies: Light, water, refraction, natural phenomena (rainbows)
    • Technology: Use of light sources and simple optical tools
    • Visual Arts: Creative representation of observations
    • Mathematics: Sequencing, drawing conclusions, noticing angles and patterns

  • Real-world STEAM Connection and Problem definition

    Have you ever seen a rainbow and wondered where its colours come from? In everyday life, children often notice rainbows after rain, but the reason behind them is not obvious. In this activity, students face the challenge of discovering how light and water work together to create a rainbow. Through experiments, observation, and discussion, they explore questions such as: What happens to light when it passes through water? Why do colours appear? What conditions are needed to see a rainbow? By experimenting, making mistakes, and trying again, students experience how scientists explore the world—showing that science is not magic, but curiosity, careful observation, and thinking step by step.

  • Materials at a Glance

    Station 1 – Mirror + Water + Light (refraction/reflection)

    • Transparent cup or bowl filled with water
    • Small mirror (fits into the cup/bowl at an angle)
    • Flashlight or strong directed lamp
    • White paper/surface to help students see the colours (recommended)

    Station 2 – CD or Prism + Light Source (splitting light into colours)

    • CDs (one per group) and/or prisms (if available)
    • Flashlight / strong lamp or sunlight near a window
    • White paper/surface (recommended)

    Station 3 – Water Spray + Sunlight (mini rainbow)

    • Spray bottles (filled with clean water)
    • Direct sunlight (outdoors or by a sunny window)
    • Optional: dark background (e.g., jacket/cardboard) to make colours easier to see

    Classroom and Documentation Materials

    • Observation worksheets (drawing + short text, or differentiated versions)
    • Pencils and coloured pencils/crayons
    • Station instruction cards with pictures and simple step-by-step prompt
    • Clipboards (optional, helpful outdoors)

    Safety and Practical Materials

    • Paper towels or cloths for spills
    • Table covers (optional)
    • A tray per station to keep materials together (recommended)
    • Hand-washing / cleaning wipes (optional)

    Visual and Support Materials (optional but recommended)

    • Illustrated story / slides of “Mari the Little Scientist” (for Stage 1)
    • Rainbow pictures or short video as a backup if sunlight is not available
    • Pre-drawn rainbow arc templates (for students needing more support)

  • Indoor/Outdoor and Classroom layout

    • Phase 1 – Indoor (Classroom): Storytelling, motivation, shared questioning, and hypothesis building.
    • Phase 2 – Indoor and Outdoor (Experimental stations): Hands-on experiments using light, water, mirrors, CDs, and spray bottles. Note: The water spray experiment should be outdoors or near sunlight; other stations can be indoors with controlled lighting.
    • Phase 3 – Indoor (Classroom): Artistic representation, reflection, and group discussion. Experimental stations should be organized in a carousel system, with clear visual instructions at each station.

  • Notes on Research-based approach and integration

    This activity follows an inquiry-based and discovery-learning approach, where students are encouraged to explore phenomena rather than receive ready-made explanations. The teacher acts as a facilitator and guide, supporting students in asking questions, testing ideas, and drawing conclusions from their own experiences.

    STEAM integration is achieved as follows:

    • Science: Observing and explaining light–water interaction
    • Technology: Using tools (flashlights, mirrors, prisms) purposefully
    • Engineering: Designing and adjusting experimental setups
    • Art: Visualizing scientific observations creatively
    • Math: Recognizing patterns, sequencing, and logical relationships.

  • Lesson Flow Overview

    • STAGE 1 – Introduction and Motivation

      Duration: 45 minutes

      SPIRIT Skills:

      • Curiosity, sense of wonder and openness
      • Critical thinking
      • Flexibility
      • Resilience

      Brief Description:

      Students listen to the story of Mari the Little Scientist, discuss personal experiences with rainbows, and formulate initial hypotheses. The teacher collects key vocabulary and ideas, creating a shared starting point for investigation.

      How does this develop particular SPIRIT skills

      • Curiosity, sense of wonder and openness: Storytelling and questioning spark curiosity, encouraging students to explore personal experiences.
      • Critical thinking: Children analyse observations, challenge assumptions, and develop hypotheses.
      • Flexibility: Students consider multiple explanations and remain open to revising their ideas.
      • Resilience: Students are encouraged to express ideas, try out hypotheses, and value each contribution in the learning process.

      What do we want to achieve regarding SPIRIT skill development (student understanding and/or behaviour)?

      As a result of this activity:

      • Students can formulate questions related to a natural phenomenon.
      • They understand that it’s okay not to have immediate answers, solutions can be discovered.
      • Their verbal expression improves: narrating experiences and using scientific vocabulary (e.g., light, refraction, reflection).
      • They become aware that scientists ask questions and experiment, they are not expected to know everything from the start.

      Academic/Curriculum Objective connection

      • Environmental Studies: Weather phenomena, the role of light and water in nature
      • Language and Literature: Listening comprehension; expressive speaking
      • Self-awareness and Identity (cross-curricular): Sharing personal experiences; valuing others’ ideas
      • Science: Forming hypotheses; revealing prior conceptions.

      Materials and tools needed for implementation 

      • Projectable or illustrated story of “Mari the Little Scientist” (on A3 paper, digital format, or as a puppet)
      • Printed or projected images of rainbows (from books or the internet)
      • Blackboard or poster to collect keywords
      • Chalk or markers; optional note sheets for children who wish to write.

      Preparation notes

      • The teacher should rehearse how to tell Mari’s story engagingly (e.g., with role-play, images, or puppets)
      • Prepare rainbow images and place them where students can easily see them
      • Plan in advance which open-ended questions to use for discussion
      • Foster a supportive atmosphere: all answers are valid starting points
      • Consider recording students’ initial hypotheses (written or verbal) for future reference during experimentation. 

      Guided Questions

      • Where have you seen a rainbow before? What were you doing then?
      • What do you think causes those colours?
      • What happens to light when it goes through water or a window?
      • How could Mari begin her investigation to discover the rainbow’s secret?
      • Can you think of anything that looks like a rainbow but isn’t?

      Stage Debriefing Questions (Optional)

      • What was the most interesting part of Mari’s story for you?
      • Did you think of something you’ve never said out loud before?
      • Why might it be helpful to ask questions before we experiment?
      • Do you think it’s a good thing when someone doesn’t know the answer right away but decides to go and find it?

      Tips and Tricks for dealing with stage challenges

      • For shy children: Allow them to draw or just listen, they can join in later
      • For overly active students: Use images or storytelling with movement to channel energy
      • For quiet classes: Direct questions to individuals (e.g., “Anna, what do you think?”)
      • For different ability levels: Accept varied responses; adapt questions from simple to more abstract depending on the student.
    • STAGE 2 – Experimentation

      Duration: 45 minutes

      SPIRIT Skills:

      • Critical thinking
      • Problem-solving
      • Curiosity
      • Creativity

      Brief Description:

      Students work in small groups at three pre-set science experiment stations. The goal is to explore light refraction and understand how rainbows are formed. Stations: 1) Mirror + Water + Light: A transparent cup is filled with water, and a small mirror is placed inside at an angle. A flashlight shines onto the mirror. Students observe how light reflects and what colours appear. 2) CD or Prism + Light Source: Students shine sunlight or a flashlight onto a CD or through a prism and observe the splitting of light into colours. 3) Water Spray + Sunlight: Using a spray bottle, students create a fine mist in direct sunlight (outside or by a window) and try to spot a real mini rainbow. Each group fills in a worksheet with drawings and short written responses to guided questions.

      How does this develop particular SPIRIT skills

      • Critical thinking: Students analyse experimental outcomes, compare them with initial hypotheses, and draw reasoned conclusions.
      • Problem-solving: Students repeat experiments, adjust tools or methods, and find solutions when results are unclear.
      • Valuing people and nature: Groups divide tasks, support each other, and work together to make discoveries.
      • Creativity: Students represent observations visually, exploring imaginative ways to present data.
      • Curiosity, sense of wonder and openness: Students explore phenomena, ask questions, and remain engaged in discovering new aspects of light and water interaction.

      What do we want to achieve regarding SPIRIT skill development (student understanding and/or behaviour)?

      As a result of this activity, the following students’ skills will be developed:

      • Critical thinking: Draw conclusions based on observations and relate them to initial hypotheses.
      • Problem-solving: Understand that scientific results require repetition, adjustment, and precision to achieve reliable outcomes.
      • Valuing people and nature: Improve communication and teamwork skills through group interaction and shared experimentation.
      • Creativity: Represent observations visually and explore imaginative ways to explain phenomena.
      • Curiosity, sense of wonder and openness: Remain engaged, ask questions, and explore the natural behaviour of light and water.

      Academic/Curriculum Objective connection

      • Environmental Studies: Light, water, and natural phenomena
      • Digital Literacy / Technology: Use of light sources and optical tools
      • Mathematics / Logical Thinking: Drawing conclusions, sequencing
      • Social Learning: Group work, joint decision-making, argumentation

      Materials and tools needed for implementation 

      • Paper, coloured pencils, direction arrows
      • Transparent cups, water, small mirrors, flashlights
      • CDs, prisms
      • Spray bottles, sunlight (or strong lamps)
      • Worksheets with pencils and coloured pencils
      • Station instruction cards with pictures and simple steps
      • Visual aids for inspiration
      • Paper towels for spills or water accidents.

      Preparation notes

      • Test each experiment in advance! Try them before the session to ensure feasibility
      • Ensure proper lighting, ideally natural sunlight for best results
      • Provide clear, illustrated instructions at each station (one per group)
      • Organize and lay out all materials beforehand, clearly sorted by station
      • Check for safety and stability (e.g., make sure cups are steady, flashlights are charged)

      Guided Questions

      • What happens to the light when it passes through water or hits a mirror?
      • How does the light change when you shine it on a CD or prism?
      • Did you see colours in the water spray? What conditions were needed?
      • Which experiment did you like the most? Why?

      Stage Debriefing Questions (Optional)

      • Which experiment was the most spectacular or exciting for you?
      • Did any result surprise you?
      • What answers did you find to your questions? Do you think you’ve understood the secret of the rainbow?

      Tips and Tricks for dealing with stage challenges

      • Water spray experiment: Best outdoors in sunshine; if rainy, use a video projection of the spray effect indoors
      • Lighting issues: Shade the room or use darker spaces for flashlight-based experiments
      • Group participation balance: Assign rotating roles (e.g., “light operator,” “observer,” “recorder”)
      • Shy students: Let them observe first, then try when they feel more comfortable
      • Tool difficulties: Provide alternatives, e.g., CDs if prisms aren’t available or too tricky to handle.
    • STAGE 3 – Reflection and Artistic Representation

      Duration: 45 minutes

      SPIRIT Skills:

      • Critical thinking
      • Valuing people and nature
      • Curiosity
      • Creativity

      Brief Description:

      Based on the experiences gained during the experiments, students individually or in pairs create a rainbow-themed drawing that illustrates how the rainbow was formed, what they observed during the experiments, and which tools they used. They may add a short written or oral explanation next to their drawing. This is followed by a class discussion, where students share their experiences, and the teacher facilitates guided reflection and self-assessment through open-ended questions!

      How does this develop particular SPIRIT skills

      • Critical thinking: Analysing observations, connecting them to prior knowledge, and correcting misconceptions.
      • Curiosity, sense of wonder and openness: Engaging with new phenomena and exploring multiple perspectives.
      • Valuing people and nature: Sharing creations respectfully and appreciating diverse interpretations.

      What do we want to achieve regarding SPIRIT skill development (student understanding and/or behaviour)?

      As a result of this activity, the following students’ skills will be developed:

      • Critical thinking: Describe and interpret observations, connect them to prior knowledge, and refine understanding of natural phenomena.
      • Creativity: Express understanding and observations through art, exploring imaginative ways to represent concepts like light, refraction, and colours. Students interpret experiences freely and explore imaginative ways to express observations.
      • Curiosity, sense of wonder and openness: Engage actively with natural phenomena, asking questions and exploring how rainbows form.
      • Valuing people and nature: Reflect on observations, appreciating both the natural environment and diverse perspectives from classmates.

      Academic/Curriculum Objective connection

      • Visual Arts: Depicting gradients, forms, and light effects
      • Environmental Studies: Processing natural phenomena
      • Language and Communication: Oral or written summaries, vocabulary expansion
      • Self-awareness and Identity: Sharing experiences, self-assessment.

      Materials and tools needed for implementation 

      • White drawing paper or watercolour paper
      • Coloured pencils, watercolours, brushes, water cups
      • Example rainbow photos
      • Sentence starters for reflection (e.g. “In the experiment I saw that…”, “The rainbow was formed because…”).

      Preparation notes

      • Prepare sample drawings in different artistic styles
      • Support students who struggle with writing by offering sentence starters or templates
      • Allocate time for peer or class-level presentation
      • Display student artwork as posters on the classroom wall or bulletin board.

      Guided Questions

      • Which experiment did you choose to draw? What did you observe in it?
      • What happens to light when it meets water?
      • Why do we see the colours in an arc shape?
      • What would you explain to a friend who wasn’t here today?
      • Which tool did you find most interesting and why?

      Stage Debriefing Questions (Optional)

      • What did you learn about rainbows that you didn’t know before?
      • What was your most surprising observation?
      • Which tool helped you understand the most?
      • If you could do it again, what would you try differently?

      Tips and Tricks for dealing with stage challenges

      • For students with weaker drawing skills: Provide templates or pre-printed outlines
      • For fast finishers: Encourage them to add extra explanations or draw a second experiment
      • For shy students: Use pair-sharing instead of whole-class presentation
      • To maintain motivation: Hold a short “gallery walk” at the end where students view each other’s work
      • Simple assessment idea: Use emotion icons (🙂😕🤔) for self-evaluation of understanding or enjoyment.

  • Tips and Tricks for dealing with challenges (for the whole STEAM program)

    • Invisible results during experiments: If the rainbow does not appear, the teacher supports inquiry with guiding questions like: “What could we try differently?” Don’t treat failure as a mistake — encourage it as a new opportunity to try again.
    • Groups working at different speeds: Prepare differentiated worksheets with optional extra questions or colouring templates for rainbows.
    • Poor lighting conditions: Use alternatives such as a video, projected images, or LED light sources.
    • Maintaining focus: Turn experiments into short challenges, e.g., “You have 5 minutes to observe as many colours as possible!”
    • Fostering a sense of community: Let students create a large collaborative rainbow collage and offer each a “Young Explorer Certificate” at the end.

  • Difficulty level tailoring notes 

    This activity can be adapted to different student skill levels while maintaining uniformity across partner settings:

    • Beginner learners: Students act as observers, using drawing templates or selecting answers from provided options. Focus is on observation skills and familiarization with phenomena.
    • Advanced learners: Students actively participate in experiments, ask questions, record observations, create visual representations, and provide simple explanations. This level develops communication, creativity, and curiosity.
    • Expert learners: Students independently explore variations (e.g., changing light angles, testing materials), connect findings to real-world phenomena, and generate new questions. This level develops critical thinking, problem-solving, and flexibility.

    Teachers can use these levels for assessment or self-assessment (e.g., with a sticker or badge system), ensuring consistent differentiation and evaluation across partners

  • STEAM Program Debriefing and Reflection Questions

    These aim to promote student self-reflection and give the teacher useful feedback:

    • What was the most interesting part of the activity for you?
    • Which experiment would you try again, and why?
    • What did you learn about light that you didn’t know before?
    • What task was the hardest for you?
    • If you could do it again, what would you do differently?
    • Could you try one of these experiments at home?

    Responses may be verbal or visual depending on ability. Students can also use self-assessment tools, such as coloured dots or emoji stickers.)

  • Appendix – Magical Rainbow

    • Pilot implementation (detailed example with lesson/activity plan), attachments – Magical Rainbow
      1. Mari’s Story

      Short narrative about “Mari the Little Scientist,” exploring the mystery of rainbows. Available in illustrated A4 format or digital version for projection. Can also be presented with puppets or through drama.

      “Once upon a time, there was a little girl named Mari who loved asking questions. Not a day went by without her looking up at the sky, listening to the rain, or playing with a glass of water in the sunlight. One day, a rainbow appeared in the sky. Mari stopped, looked up, and said: ‘How do those colours get there? Why does the rainbow appear only when it rains and the sun is shining?’ Other children ran ahead, but Mari stood still, watching. Then she decided: she would find out! She would become a scientist—someone who doesn’t just look at the world but asks questions and does experiments. That’s how Mari’s journey began into the mysterious world of light and water…”

      1. Experiment Station Instruction Cards

      Each station has a visual instruction sheet with simple icons and steps (e.g., water, mirror, arrow), making them suitable even for students who can’t yet read independently.

      1. Observation Worksheet (Drawing + Text Versions)

      Space for students to record their findings during each experiment: drawing and short sentences like “I observed…”, “We used…”. A differentiated version may include pictograms or image choices.

      1. Rainbow Creation Template

      Pre-drawn arc templates for beginners; blank A4 sheets for advanced students. Title suggestion: “This is how a rainbow is born!”

      1. Student Reflection Sheet (Yes/No answers with pictograms):

      Questions include:

      • I observed how light changes.
      • I drew a rainbow.
      • I took part in the experiment.
      • I asked at least one question.

      Can also be completed verbally with teacher support.

      1. Teacher’s Guide

      Includes step-by-step experimental instructions, alternative setups (e.g., for poor lighting or limited time), differentiation strategies, pre-written guiding questions, possible answers, and assessment tools (oral, visual, group).

      1. Class Poster Template – “Explorer Wall”

      Large A3 or A2 paper for creating a collaborative rainbow poster with everyone’s artwork. Suggested central title: “This is how a rainbow is born – we tried it ourselves!” Used for closure and group reflection on the experience

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