Stand out with your junior high school independent research! A collection of fun experiment and craft ideas

solar energy

A toy that lets you feel solar energy: Solar Grasshopper. Surprisingly high-tech. LIT-SHOP

When we think of solar energy, solar power generation likely comes to mind first.

However, everyday phenomena—like daylight making it bright during the day or the warmth of sunlight—can also be considered effects of the sun’s energy.

Let’s explore how we make use of these forms of solar energy.

DIY speakers

[DIY] First attempt at building my own speakers! I'll build them while introducing how to make DIY speakers!

Create your very own one-of-a-kind original speaker.

Hearing “speaker building” might sound difficult, but the basic mechanism of a speaker is simpler than you think.

DIY kits are also available.

It’s a great independent research project for people who like machines.

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How water and air flow

Summer vacation independent research project – Junior high school – Part 2

If you connect a water-filled plastic bottle and an empty plastic bottle with a rubber stopper that has a small hole, the water won’t fall even when you turn them upside down.

But if you create a vortex, the water spirals down, which is curious and fun to watch.

It’s an experiment that lets you enjoyably learn about the relationship between water and air.

Experiment on the surface tension of water

Surface tension: fun teaching experiment

This is an experiment on the surface tension of water.

I think it will be interesting to try various conditions, such as using different liquids like salt water or juice, or changing the temperature.

It’s a highly recommended experiment because it doesn’t require much time or money.

It’s a good idea to take photos and put them together in a summary.

Make a water purifier

How to Make a Plastic Bottle Water Filter! Step-by-step explanation from how it works to the build process!

A water purification device that also functions as a filter—like a magic trick that turns India ink into plain water—has gone on sale.

Even if it’s called clean water, the fact that it started out as ink makes it a bit scary to drink, doesn’t it? So how about making a simple filtration device yourself using a plastic bottle and everyday materials? You’ll need activated charcoal, sand, small stones, and a plastic bottle.

First, poke a small hole in the bottle cap for the water to come out.

Cut off the bottom of the bottle, roll up some tissue paper and pack it in, then layer sand, small stones, and activated charcoal on top in that order.

That’s it—you’re done.

If you switch the materials inside to things like sawdust or newspaper and compare how well the water is purified, it will feel more like a research project.

Do not drink the resulting water under any circumstances!

Chemical illusion with vinegar and baking soda

[Independent Research] A Chemical Reaction Illusion with Vinegar and Baking Soda!

This is a reaction that occurs during neutralization, and the chemical reaction between vinegar and baking soda looks like an undersea volcano, which is really fascinating.

Since you can experiment with items found at home, it’s easy to try.

With color changes and the release of carbon dioxide, it feels like a real experiment and seems exciting to work on.

Trends in the Olympics

The Complete London 2012 Opening Ceremony | London 2012 Olympic Games

Of course, people from many different countries take part in the Olympics, one of the most prominent international events.

Among them are first-time participants as well as those competing for the first time in several years or for the nth time.

Let’s explore how the number of participating countries and the number of participants have changed over time.