Inside: This collection of rainbow science activities is filled with fun. Fifteen ideas for toddlers and preschoolers that involve pouring, mixing, fizzing, and squishing while learning colors!
Exploring the rainbow is our favorite way to expose young children to colors and color mixing. I’ve share how we’ve made rainbows on bubble wrap and sorted rainbow colors in the sensory bin. But what about science? How can you wonder what happens while working with ROYGBIV? I’m thrilled to have found 15 rainbow science activities for toddlers and preschoolers.
Hands-on science that get young children excited about what will happen next!
Pouring, mixing, fizzing, squishing … ingredients that make early learning fun!
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Some of these activities are more suitable for preschoolers than toddlers. Close supervision is required.
15 Rainbow Science Activities for Toddlers and Preschoolers
Skittles Rainbow Science: What happens when you add skittles to water? (Fantastic Fun and Learning)
Spin Art Rainbows: What happens when you spin primary colors? A fun STEAM activity.
Scented Rainbow Science: What happens when you add vinegar to frozen baking soda? (Fun-a-Day)
Marshmallow Color Change Experiment: What happens to water after colored marshmallows are dissolved in it? (Fantastic Fun and Learning)
Colorful Water Beads Experiment: What happens when you hydrate colorful water beads? (Little Bins)
Sparkly Fizzing Rainbow: What happens when you add glitter to baking soda and vinegar? (Preschool Powol Packets)
Rainbow Paper Color Science: What happens when you dip black paper into clear nail polish and water? (The Science Kiddo)
Make Your Own Rainbow: What happens when you take everyday items and shine light on them? (Lemon Lime Adventures)
Rainbow Salt Discovery Jars: What happens when you color salt using chalk and add it to a jar? (Preschool Toolbox)
Exploring Prisms: What happens as the light from the sun passes through the prism? (Buggy and Buddy)
Rainbow Ice and Salt Experiment: What happens when you color a block of ice and then add salt? (Powerful Mothering)
Rainbow Density Jar: What happens when layer liquid mixtures that have different densities? (Schooling a Monkey)
Traveling Colors: What happens when you add the colors from the rainbow onto salt and glue? (You Clever Monkey)
Rainbow Water Xylophone: What happens when you fill jars with colored water, each at a different level? (Mama Papa Bubba)
Rainbow Clean Mud: What happens when you add toilet paper to soap flakes and colored water? (Simple Fun for Kids)
Check out our favorite science toys and materials:
More science ideas:
10 Simple Toddler Science Activities that are Full of Fun
How to Set up a Preschool Science Center
7 Preschool Science Experiments that Explore Gravity
Planning your colors theme? We’ve done the work for you!
I am so excited to be a co-author of these color theme lesson plans.
24 preschool learning activities for your colors theme, including literacy, math, science, art, fine motor, and more! A great resource for teachers and homeschoolers.
24 preschool learning activities that cover
- Literacy
- Math
- Science
- Fine Motor
- Sensory
- Gross Motor
- Art
- Social Studies
- Music
- Circle Time
- Social/Emotional
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