Elementary School Students: Simple One-Day Science Project and Craft Ideas
For elementary school summer break projects and crafts, we recommend starting with something your child is already interested in.
When it’s something they like, they can enjoy working on it.
Here, we introduce simple ideas for elementary school students! These are experiments and crafts you can do in a single day.
The materials are things you already have at home or can get quickly, so even if you’re short on time, no worries.
Perfect for those who are “stuck on a theme” or “looking for an easy and fun project”! Find your favorite and give it a try.
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[Elementary School] Easy One-Day Science Projects and Crafts Ideas (141–150)
Paper cup Tyrannosaurus

This activity involves combining paper cups to create a three-dimensional, dynamic Tyrannosaurus.
The key is how you connect the cups: by trimming the edges and adding slits, you can set firm angles.
Build it by linking the cups from the head to the tail, then attach separately made legs and arms at the end to finish.
Try different variations, such as using cups of the same color for a cohesive look or mixing different colors for a colorful effect.
Making a marble run with an ice box
@silk_haru3mama [Elementary School Summer Craft/Independent Study] We tried making a marble run using an ice cream box 🌻#Summer VacationSummer Vacation Independent ResearchSummer Vacation Craftworktranslation#HandmadeToysIndependent ResearchScrap Material CraftingSimple craft#craft
♬ Electro Swing Jazz – Retro, strange, mysterious(1137053) – Ponetto
Summer is the season that makes you crave ice cream, and as you eat it, you might find the boxes piling up.
This idea uses those leftover ice cream boxes to make a marble run.
Use a large box, like a milk carton, as the base, and attach slopes made by cutting the ice cream boxes around it.
Adjust the angles and heights carefully, keeping in mind the strength needed so it won’t break when the marbles hit.
Using ice cream sticks to reinforce it is also recommended—they’ll make the whole thing sturdier and give it a cohesive look.
Roll-and-drop game made with straws
@n.annlee321 Roll, roll... ☺️#tiktok classroomLife with children#Summer VacationSummer Vacation Craft
♬ Athletic Meet “Heaven and Hell” (No Introduction) – Shinonome
Here’s a fun-to-make, fun-to-play marble run you can build with straws.
Gather tapioca (boba) straws, beads, masking tape, and scissors, and let’s get started.
Cut the tip of a tapioca straw at an angle, then tape it to a wall with masking tape, adjusting the angle as you go.
Add guards at the ends of the straws so the rolling beads don’t fall out.
The key is to tweak the angles so the beads roll smoothly.
Once it’s finished, try rolling some beads and play! It could also be fun to turn this into a little science project—prepare beads of different sizes and time how many seconds each one takes to roll through.
Deodorizing pot made with an ice pack
@poccle Easy with an ice pack! I made a cute bottled deodorizing pot—perfect for a science project or a fun craft at home ♥ #craftsProduction#StayHomeTime#AtHomePlayIndependent ResearchSummer vacation homework #NurseryTeacher#NurseryTeacherMomParentingCoolant packDeodorization
♬ Relaxing, cute everyday BGM – Avi
Do you have leftover cold packs from buying cakes and other treats sitting in your freezer? Here’s a deodorizing gel pot you can make with those cold packs—perfect as a summer science or craft project for upper elementary students.
Get your materials ready: cold packs, beads, a plastic container, an empty jar, colored markers, a bowl, water, and a stirring stick.
Squeeze the contents of the cold pack into the bowl, add water, and stir until it becomes a gel.
Color the bottom of the plastic container, then add the gelled cold pack and mix to tint it.
Spoon the mixture into the empty jar, add beads or other decorations, and you’re done.
It’s a simple deodorizing pot you can make with everyday items—try creating your own original version!
Well-spinning paper cup top

This is a spinning top made with a paper cup that spins well and is fun to watch because of its colorful look.
All you need are a paper cup and two plastic bottle caps.
First, cut slits into the paper cup and spread them out like propeller blades, then attach an axle made by combining the two caps.
That’s enough to complete the basic shape, but it’s recommended to decorate the “propellers” with an eye toward how it will look while spinning.
The impression changes depending on whether you spread the propellers before decorating or decorate first and then cut the slits, so try out various patterns.
A flying octopus? Tako-copter

It’s a toy that combines paper cups and a round chopstick to spin like a bamboo-copter and soar into the sky.
By spreading “wings” that catch the wind and coloring it mainly red, it takes on a curious form—a flying octopus.
You’ll use two paper cups and a round chopstick: attach the chopstick and the octopus’s facial parts to a paper cup with only the bottom left to create a launcher.
Then cut slits into the other paper cup, spread it out to form propeller-like blades, and attach it to the launcher to finish.
Fine-tune the propeller angles to make your octopus fly even higher.
galaxy jar

It’s a craft that compresses outer space into a tight little bottle—full of romance and wonder! It’s perfect for time at home, and not only kids but their caregivers will likely find themselves totally absorbed.
Since children will be handling it, use a plastic bottle instead of a glass one for safety.
Pack as much craft cotton as you can into the bottle, then pour in water.
Next, load the tip of a brush with your favorite watercolor paint and, as if poking into the gaps in the cotton, move the brush side to side to add color.
If you mix too many colors it can get muddy, so we recommend blending about two colors.
Adding glitter or star-shaped sequins makes it look even more magical!



