Get hands-on with these 25+ rainbow science activities for elementary students! Make science come alive with these activities to make learning epic.
Hands-on Rainbow Science Activities
Sugar Water Density Rainbow Project – Little Bin For Little Hands
Learn about the density of liquids and basic color mixing in this activity!
Exploring Rainbows, Lights and Colors – A Little Pinch of Perfect
This sensory science activity is a fantastic introduction to light and color.
Crawling Colors – Parenting Chaos
With only a few household ingredients, create crawling colors in this experiment.
Rainbow Lemon Eruptions Salt Tray – Kids Play Box
Get messy with this salt tray!
Color Changing Flowers – Schooling A Monkey
How can flowers change colors? Find out in this really fun and unique experiment that elementary students will love!
Rainbow Soap – Fun At Home With Kids
This soap activity is great for sensory and allows kids to get messy while learning about different colors. Learn what happens when you mix primary colors together.
Rainbow Volcano – Green Kid Crafts
Turn your volcano into a colorful mess with this rainbow volcano.
Multi Layered Rainbow Jar – Playdough to Plato
What liquids don’t mix? Find out in this colorful multi-layered rainbow jar!
Scented Rainbow and Sensory Play – Fun-A-Day
Combine science and sensory play for the little ones.
The Awesome Rainbow Milk – Artful Parent
Check out this mom’s popular take on the rainbow milk project.
Fizzing Rainbow – Schooling A Monkey
Practice basic chemical reactions with this activity meant for toddlers.
Rainbow Foam Eggs – Inspiration Laboratories
Grab some plastic eggs leftover from Easter for this fun project.
Create Your Own Realistic Rainbow with a Flashlight, Water and Mirror – Physics Central
How are rainbows created? Find out with this experiment!
DIY Rainbow Paper – Science Kiddo
Make your own rainbow paper with only three materials!
Growing Rainbow Crystals – Frogs and Snails and Puppy Dog Tails
Grow rainbow crystals with this easy and fun experiment at home.
Rainbow Marker Coffee Filter Experiment – Make and Takes
White coffee filters allow for great experimentation with color bleeds.
Homemade Spectroscope – Buggy and Buddy
Explore the different spectrum of light with this homemade spectroscope!
Rainbow Rocket Science – Frogs, Snails and Puppy Dog Tails
Take the kids outside for this bright and colorful experiment kids will love.
Color Play on Mirror Rainbow Color Play Experiment – Little Bins for Little Hands
Explore color with this sensory science activity for the little ones.
Rainbow Ice Tunnels – I Can Teach My Child
Learn about ice with these rainbow ice tunnels in this activity that can keep kids busy for at least an hour.
Rainbow Paint Pops – Learning 4 Kids
Have kids paint with these fun rainbow pops.
Rainbow Shaving Cream Rain Clouds – Paging Fun Mums
There’s only a few household ingredients needed for these bright rain clouds.
Rainbow Ice and Salt Science Experiment for Preschool – Powerful Motherin
Explore two different types of color patterns with this simple rainbow ice and salt experiment! The main prep time involves freezing two blocks of ice.
Rainbow Ice Chalk – Reading Confetti
On a warm day, create this bright and colorful homemade ice chalk!
Skittles Density Rainbow – Gift Of Curiosity
You’ll need a packet of Skittles for this layered rainbow experiment!
