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] Simple One-Day Science Projects and Crafts Ideas (71–80)
Stone painting

During summer vacation, there are times when you go out with your family to rivers or mountains, right? When you do, why not try picking up stones and making art with them? Of course, stones you’ve collected from around your neighborhood are fine, too.
First, paint the stones you’ve prepared with white acrylic paint.
This small extra step will help your work turn out beautifully.
Then, use acrylic paints to create animals, plants, and more by adding color.
If you also use items like pipe cleaners or empty cans, you can make pieces that look very realistic.
Please use this as a reference and give it a try!
Let’s make a cardboard pochette

Here’s an introduction to making a pochette using cardboard.
Do you have cardboard boxes at home from parcel deliveries or from purchases at the supermarket? If you have some on hand, you can make a pochette simply by cutting it into shape, folding it, and assembling it.
Cardboard has lines where the inside is hollow.
The key is to keep those lines in mind when you cut.
If you want to create curves in your cardboard parts, cut across those lines.
Doing so will expand your creative possibilities.
Designing the pochette itself is sure to be an enjoyable time, too.
Bird call making

As a craft project perfect for children who love nature observation, I recommend making a bird call.
Prepare a hand-sized wooden branch and drill a small hole in the center.
Screw in a metal part called an eye nut, and when you twist it so the wood and metal rub against each other, it produces a sound like birdsong.
Real birds may sometimes respond to this sound, so trying it out in a park after making it is part of the fun.
The volume and pitch change depending on the type of wood and the depth of the hole, so by experimenting and recording the differences, you can enhance the quality of the project as an independent study.
It’s a hands-on idea that lets kids connect with nature while sparking curiosity about how sound works.
Let’s play with paper blocks!

Prepare some construction paper and try playing with paper blocks.
Using long, narrow strips of construction paper, make triangles, circles, and squares, then assemble them into artworks.
By folding or curling the narrow strips, you can express a variety of shapes.
Attaching the parts you’ve made with glue or clear tape and combining them will broaden the range of your creations even more.
As children think about shapes and combine them to make pieces, they can expand their imaginations.
You can also mount the combined works on construction paper for display.
For pieces with movement, hanging them with thread is also recommended.
How to make rainbow punch

Rainbow punch is perfect for a science project where you can learn about color and state changes.
Divide shaved ice syrup into several cups and mix in your favorite colors.
Dissolve gelatin in hot water and combine it with each colored syrup, then chill in the refrigerator to set into jelly.
Place the colorful jellies in a glass, and finally pour in soda water—your rainbow drink will sparkle with fizzy bubbles.
By observing the transformation of gelatin from liquid to solid and how it interacts with carbonated water, you can deepen your understanding of color and temperature-related state changes.
It’s an idea that’s visually fun and scientifically rich, letting you enjoy both observation and experimentation.
How to make jelly that sets instantly

Here’s how to make a beautiful jelly with sparkling, colorful beads.
Make the jelly base with sodium alginate, then gently pour a liquid colored with shaved ice syrup or food coloring into water containing dissolved calcium lactate.
Like magic, soft jelly sets instantly.
This happens because alginic acid and calcium undergo a chemical reaction that forms a jelly-like membrane.
Shine a light on it for an even more enchanting effect.
By experimenting with color combinations and shapes, you can create pieces that are visually delightful for kids.
It’s a perfect idea for an independent study project full of wonder, blending science with crafts.
A one-of-a-kind toy clock in the world

The idea is to make a clock using a clock movement and a board, then attach various toys to it.
You can get a clock movement at a 100-yen shop or a handmade goods store, and you can buy the board for the clock face at a home improvement store.
First, draw diagonal lines on the board to find the center point, and mark where to drill the hole for the movement.
Next, use a protractor to decide where to place the numbers on the clock.
After drilling the hole and painting if you like, it’s time to decorate the face.
Use a hot glue gun to attach the toys however you like.
Finally, secure the clock movement in the hole, and you’re done.
Arrange your favorite toys with style and create a wonderful clock!



