February 26, 2024

7 Rainbow Experiments for Science Class

Rainbow STEM:
Experiment |
Enjoy Videos |
Ask Questions |
Dig Deeper |
Choice Board |

Our Educators Corner series features high-interest STEM activities that work well with trainees in both informal and official settings– in the class or at home. These activities are organized in fun themes that make it simple for teachers to decide on just-right activities for weddings or unique systems. Each collection is hand-curated for fun, ease-of-use, easy materials, ease of access, and interest aspect. To assist educators package activities with extra classroom or out-of-class activities and reflection, weve included conversation concerns, profession connections. Weve also consisted of book ideas to help teachers connect science and engineering to English Language Arts.

Making learning fun is often half the fight! With the right activities, educators can make sure discovering science and engineering involves hands-on enjoyable for trainees of any ages. Construct in some vibrant science exploration with STEM experiments on a rainbow style!

Rainbow STEM!
The science of visible light and the physics associated with what we view as a rainbow can lead to amazing hands-on science investigations and experiments. The “cool factor” of other science activities can likewise be upped by utilizing a series of colors. The STEM activities highlighted in this Colorful Rainbow Science collection make sure to get great deals of oohs and aahs as students use physics and chemistry to create colorful patterns, rainbows, and more.

Explore Careers |
Read Books

By Amy Cowen
on September 23, 2021 8:00 AM

EXPERIMENT: STEM Experiments with a Rainbow Spin

In this enjoyable science experiment, trainees mimic the additive process of 3D printing by making small 3D printed sculptures using sand and glue. No 3D printer is needed for this experiment! Trainees can utilize preferred colors of sand for their developments– or attempt making a rainbow stack like the example revealed. Can they resolve the layering difficulty to “3D print a rainbow”?
The science: There are several types of 3D printing processes. This activity imitates the procedure called binder jetting. In the activity, glue is selectively applied to a layer of sand to bind the grains of sand together. Another layer of sand is added, and the procedure is duplicated. The loose sand is shaken off in the end to reveal the 3D things.

Underwater Color Bursts– STEM Activity.

Liquid Density Column– STEM Activity.

Thanks to the power of capillary action, tactical placement of paper towels in cups of colored water separated by empty cups will, in time, result in a pretty cool strolling water rainbow! Trainees can explore less cups or various setups of cups to vary the activity. What occurs if all of the cups of colored water lead to simply a single main empty cup? Can they forecast what colors they will see based upon the setup they use? (Note: The development of color takes time!).
The science: The colored water in one cup moves through the paper towel by capillary action and, eventually, includes color to the water in the cup at the other end of the paper towel. When more than one color of food coloring reaches a cup of water, the dyes integrate to form brand-new colors.

With a bit of imaginative thinking, students can use food coloring to turn a normal density column experiment into a brilliant rainbow stack! Figuring out the order of the liquids to pair with the preferred order of colors is part of the difficulty!
The science: The substances utilized will settle into separate layers based upon their density. To produce a rainbow result, trainees will need to determine how the substances will stack and include food color where required.

With this hands-on make a rainbow activity, trainees use a glass container of water, the sun, and sheets of white and colored paper, to cast and take a look at rainbows. They find out about white light and how refraction and reflection produce the colors we see in a rainbow. The number of colors will they see in their rainbows?
The science: As light is refracted when going through the container of water, different wavelengths of light bend at a little various angles. This leads to the bands of color we see in a rainbow.

In this simple activity, students use hard-shell candies and water to find out about diffusion and produce vibrant candy rainbow display screens. When the sweet finishings start to dissolve, what happens to the color? How can extra sugar be utilized to develop a lot more interesting patterns? Be motivated! There might be some spoilers here, however this family did a great task making colorful productions with this experiment.
The science: As the sweet finishes dissolve, the sugar and dye service from each candy begins moving to a location with a lower concentration of sugar. This movement develops vibrant patterns in the water. By including sugar, students can even more manage how the patterns form.

With milk, food coloring, and liquid detergent, students get hands-on finding out about surfactants and hydrophilic compounds as they create vibrant patterns on the surface area of milk. What colors will they select for their milk rainbows? What triggers the spread of the color when a cotton swab with liquid soap is touched to the surface area of the milk?
The science: The soap reduces the surface stress of the milk. The food coloring approach a location of greater surface area stress.

VIEW: Videos.

With cooking oil, food, and water coloring, trainees can produce gorgeous undersea color bursts and surges as they check out density, miscibility, and diffusion. Attempt both parts of the experiment to see how the results differ when you begin with a cup of oil compared to a cup of water. Which one creates colorful undersea patterns? Which one creates blobs of color?
The science: Oil and food coloring do not integrate to make an uniform option. When a mix of oil and food coloring is added to water, the oil (which is less thick than water), sits on top of the water. The food coloring sinks to the bottom of the oil layer and after that spreads out into the water.

3D Printing with Sand and Glue (no 3D printer required!).

CHECK OUT: STEM Careers.
After attempting Rainbow STEM experiments, students may be influenced to discover more about these science and engineering professions:.

You Might Also Enjoy These Related Posts:.

Utilize these concerns with trainees to trigger conversation and reflection about the science behind these Rainbow STEM activities:.

Our Rainbow Science Choice Board is a fun method to encourage trainees to dig a little deeper. With engaging jobs that motivate creative reactions, synthesis of important principles, hands-on building, and more, there is something here for everybody! (Tip: When presenting this choice board to trainees, you might wish to offer links to referenced activities and videos they may require to see or check out through to satisfy the tasks. ).
Keep in mind: You will need to be logged in to download this free PDF.

The STEM activities highlighted in this Colorful Rainbow Science collection are sure to get lots of oohs and aahs as students use physics and chemistry to produce colorful patterns, rainbows, and more.

ASK: Questions.

How is a rainbow created in the sky?
What takes place to light to make a rainbow?
What science principles describe the vibrant patterns developed in the featured activities?
What does the electromagnetic spectrum inform us about the colors in a rainbow?
What does miscibility suggest when discussing mixes and services? What does polarity indicate in this context?
What is an uniform option? What is a heterogeneous service?
Why is the density of water greater than the density of veggie oil?

READ: Books.
Pair image and story books like these with Rainbow STEM expeditions.

CHOICE BOARD: Differentiated Learning.
Option boards offer a versatile knowing tool educators can use to supplement classroom instruction. You might try an option board as part of weekly research, for additional credit, or for remote and asynchronous knowing.

DIG DEEPER: More Lessons and Activities.
For extra lessons and activities connected to the activities above, see these curated Teaching Science Units collections:.

With this hands-on make a rainbow activity, students use a glass container of water, the sun, and sheets of white and colored paper, to cast and examine rainbows. With a bit of innovative thinking, trainees can use food coloring to turn an ordinary density column experiment into a brilliant rainbow stack! Students can use preferred colors of sand for their creations– or attempt making a rainbow stack like the example revealed. Thanks to the power of capillary action, tactical placement of paper towels in cups of colored water separated by empty cups will, over time, result in a pretty cool strolling water rainbow!