The Rainbow in a Glass science experiment is a colourful and exciting STEM activity that helps children explore the concept of density in a simple, hands-on way. By carefully layering liquids or coloured sugar-water solutions with different densities, students can create a beautiful rainbow inside a glass while discovering why some liquids float on top of others instead of mixing. This experiment encourages curiosity, observation, and critical thinking, making science both fun and memorable.
Perfect for classrooms, homeschool lessons, and science fairs, the Rainbow in a Glass experiment introduces important scientific concepts such as density, concentration, and liquid layering through an engaging visual demonstration. Children can make predictions, record observations, and explain their results, helping them develop essential scientific inquiry skills. It’s an easy, educational activity that combines creativity with real-world science, making it an excellent addition to any STEM learning programme.
Title
Rainbow in a Glass
Materials Required:
- Sugar
- Water
- Food coloring
- Clear glass
Steps:
- Make sugar solutions with different amounts of sugar.
- Color each solution differently.
- Carefully pour them into a glass.
Science Behind it:
Density and liquid layering.
Key Features of this Project Kit:
- Experiment Sheet
- Prediction Sheet
- Observation Sheet
- Result Sheet
- Reflection Sheet
Who is this Science Activity for?
- Students – Who are very interested and want to learn about Science.
- Teachers – Who are teaching about Science Experiments to the students.
- Parents – Who want to do simple Science Experiments with available materials at home.
👇 Download your Free PDF Project Kit below.
Printing Tips
- Print on A4 paper.
- Use high-quality paper.
- Use 100–120 gsm paper for better durability.
- Print unlimited copies for personal use.
- Works with most home and office printers.
- Best quality at 100% scale.
