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 Students] Easy One-Day Independent Research and Craft Ideas (51–60)
Let’s learn about sugar crystallization while making canelés.
Let’s make an experimental piece using a canelé mold for sweets.
Put powdered gelatin into a container filled with water and heat it in the microwave.
After heating, add sugar, color it with edible food coloring, and heat it in the microwave again.
Pour it into the canelé mold, and once it sets, remove it from the mold.
Your beautiful, colorful sugar canelés are ready.
At first, they look jiggly, but after a week, the sugar crystallizes and they turn into sparkly, crystal-like pieces.
You can enjoy watching the sugar change over time.
Cake-shaped accessory case
@hoikushisatomi [Even kids can make it] Cake-like trinket box 🍰Seasonal craftsChildcare ideasLife with childrenNursery teacher / Childcare worker#Creative PlayKids will love itChildren's Day#crafts#craftkids
♫ Winter Maple Leaves – Sasa.
Here’s an idea for a cake-themed trinket holder made with paper cups.
First, take one paper cup and cut straight from the rim down to the base, then cut out the base as well.
Use this as the template base, and decorate it by attaching felt or construction paper to make it look like a cake.
Once you’ve finished decorating the base, attach it to another paper cup, and you’re done.
It’s easy and cute, and you can customize the decoration however you like—highly recommended! With a bit more effort, you can even add a lid to the trinket holder, so give that a try if you have the time.
Refreshing! Square Bag
@n.annlee321 A cool-looking square bag design 💕 Perfect for a summer vacation craft project, too 🥰🫶✨#100-yen-shop#100-yen shop DIY#Summer VacationSummer Vacation CraftDaiso
♬ Good luck to me tomorrow – NANAOAKARI
Here’s an idea for making a bag using bag hardware from a 100-yen shop, plant pot mesh, and yarn in your favorite color and material.
First, cut the plant pot mesh to match the size of the bag hardware, then crochet or stitch the yarn onto the mesh.
Once you’ve finished attaching the yarn, sew the mesh and the bag hardware together.
Finally, add the handles and your favorite decorations to complete the bag.
With this method as a reference, it seems like you could create all kinds of items depending on your ideas!
Butter Even Elementary School Students Can Make
@nonno.chan I recreated a summer vacation science project I made a long time ago: homemade butter!#Summer VacationIndependent Research#HandmadeButterHomework#tiktoksummerbreak#meijiMeiji Delicious Fresh Cream
♬ 3 minutes cooking style pop / cooking / sweets(957554) – ArcTracks
Here’s a summer vacation science project idea for making authentic butter at home using heavy cream, salt, and a plastic bottle.
Put heavy cream and a pinch of salt into a plastic bottle, close the cap tightly, and shake it vigorously.
After shaking for a while, the contents will separate into liquid and solids.
This is the sign that butter and buttermilk have separated.
Pour off the liquid, cut the bottle open with scissors, and take out the contents—the butter is ready.
Spread it on bread to enjoy a special flavor that really lets you feel you made it yourself.
Watching the cream change teaches about dairy processing and fat separation.
The hands-on, energetic shaking is fun and gives a sense of accomplishment, making this a great idea for elementary school students.
[Elementary School] Simple One-Day Science Projects and Crafts (61–70)
Milk Carton Rolling Tower
@silk_haru3mama [Summer Vacation Craft/Independent Study] I made a rolling ball tower out of a milk carton 🌻#Summer VacationSummer Vacation Independent ResearchSummer Vacation Crafttranslation#HandmadeToysworkIndependent ResearchScrap Material CraftingSimple craft#AtHomePlay#craft
♬ Electro Swing Jazz – Retro, strange, mysterious(1137053) – Ponetto
Let’s reuse empty milk cartons to make a fun rolling tower where a ping-pong ball tumbles down! Cut the milk cartons and connect two of them to create a long cylindrical base.
Make holes and slits in paper plates, attach them in a stepped arrangement, and adjust the angles so the ball rolls smoothly through.
Add slits to the side of the cylinder so the ball won’t stop midway and will drop all the way to the bottom.
If you wrap the whole thing with a tube-shaped cover made from a clear file, the ball won’t fly out and it’s safer to play with.
A bonus is that kids can learn about gravity and incline through the speed of the rolling ball and the fun sounds it makes.
It’s an eco-friendly idea that uses recycled materials to create a moving, interactive project.
A piggy bank that helps you save while having fun
Let’s use Daiso’s 3-tier drawer case to make a fun, game-like piggy bank over summer break.
First, flip the second and third drawers upside down and reassemble them so the flat sides face the front.
Next, cut corrugated plastic (plastic cardboard) into any shapes you like and attach it to the outside of the drawers to create a design that looks great.
Inside, apply double-sided tape so coins pause partway and drop slowly as they travel down.
With a piggy bank you made yourself, saving money becomes fun and easier to turn into a habit.
It’s a unique, practical idea that can change your everyday life through creativity and ingenuity.
Making Konpeito (traditional Japanese sugar candy)
Let’s try making handmade konpeitō—colorful, cute sugar candies—for a summer vacation science project.
Boil sugar and water to make syrup, then gradually add small amounts of konpeitō cores; as you do, little spikes will slowly form on the surface.
By adding food coloring or flavorings during the process, you can customize the taste and color to your liking.
Even without special equipment, you can keep stirring and improvising with a frying pan or a bowl; it takes time, but the candies will gradually take on the characteristic konpeitō shape.
Because the results change depending on the temperature and timing of sugar crystallization and how you stir, it’s also enjoyable as a science experiment.
It’s a rewarding idea that nurtures both confectionery skills and observation.



