[Middle School Students] Easy One-Day Science Projects and Crafts Ideas

Research geocentrism and heliocentrism

[Yukkuri Explanation] The Surprisingly Little-Known Geocentrism vs. Heliocentrism

Shall we look into the geocentric and heliocentric models? Throughout human history, the assessment of which is true has shifted with the times.

Of course, today the heliocentric model is considered correct, yet there seem to be people advocating a flat Earth as well.

Tracing back from the writings of Aristarchus in antiquity to the era of Ptolemy, who compiled the constellations we use today, this provides a clear explanation of the intricately intertwined history of geocentrism and heliocentrism.

Let’s reflect on the vast universe and the ground we tread every day.

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Investigate the buoyancy of saltwater

Science experiment: Investigating whether vegetables and fruits float or sink in water and saltwater | Independent research project

When you’re cooking and wash vegetables in a bowl of water, they float, right? Did you know that whether they float or sink actually depends on the salt concentration in the water? In this experiment, we’ll make saltwater solutions with different amounts of salt and explore the differences.

It’s recommended because you can do it with items you have at home or can easily buy—water, salt, vegetables or fruit, a scale, a bowl, and so on!

Research foods that can clean ten-yen coins

[Experiment] Which method makes a 10-yen coin the shiniest!? A surprising result!

We will investigate materials that can clean 10-yen coins.

Place a 10-yen coin in lemon juice, wasabi, mayonnaise, vinegar, shampoo, miso, pickled plum (umeboshi), and ketchup, and after more than a day has passed, check which one became the shiniest.

Use your ingenuity and try experimenting with other items beyond those listed as well.

In the video, shampoo, mayonnaise, and wasabi made the coins clean, but the results may vary depending on the specific coin used and the amount of time elapsed.

Please give it a try.

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Making disposable hand warmers

[Science Experiment] How Disposable Hand Warmers Work [Atto Home]

Hand warmers are convenient in the cold winter, but do you know how they generate heat? Why not tackle this mystery as a science project? Prepare materials like activated charcoal, iron powder, salt, water, a dropper, a thermometer, and containers such as beakers, as well as safety gear like gloves and goggles! It’s amazing that you can make a hand warmer that really gets warm, isn’t it? Give it a try!

Investigate the characteristics of vegetables that float in water and those that sink

[Experiment] “Floating Vegetables, Sinking Vegetables” [Independent Research]

When we wash vegetables and fruits, we often do it without thinking, but they sometimes float and sometimes sink in the bowl, right? Do you know why that is? Is it because of their weight? Actually, no! Whether something floats or sinks is determined by a reason different from weight.

Let’s explore it by trying it out ourselves! When you investigate an everyday question through an experiment, you can understand the reason clearly—and it’s a great way to learn!

Investigate the principle of the siphon

The power of the atmosphere is amazing—experience the force of atmospheric pressure with the siphon principle!

Do you know the principle of a siphon? It’s the principle used in kerosene pumps and the like, where a continuous, gapless tube is used to guide a liquid to its destination by routing it through a point higher than the starting point.

Let’s use an actual tube to understand this concept, which sounds complicated at first! Your teacher and classmates might be amazed by this serious experiment!

The Irritation Stick made with 100-yen store items

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#Summer VacationIndependent ResearchInvention and ingenuityworkSimple craft#100-yen-shop100-yen shop craftsElementary school craftJunior high school student crafts#IrritationStickElectrical work

Original Song – Craft Team STARSS – Craft Team STARSS

Let’s make a steady-hand game using materials from a 100-yen shop and learn about electricity! The materials are: a foam brick, a personal safety alarm, aluminum wire, copper wire, and vinyl tape.

Remove the switch from the circuit board inside the safety alarm and insert and solder the copper wire.

Wrap the copper wire with vinyl tape to cover it.

Shape the aluminum wire however you like, insert it into the foam brick, and connect one end of the copper wire to it.

Now your steady-hand game is complete! When you touch the remaining copper wire to the aluminum wire, the safety alarm will sound.

If the alarm doesn’t sound, it means the electrical circuit from positive to negative isn’t connected.

Check it again.

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