Recommended for elementary school students! Science fair topics & craft ideas

Extending Sword

Let's make a sword that extends using a calendar and a wrapping paper core!

Here’s how to make an extendable sword using a plastic wrap core and paper.

First, cut the core and use construction paper or similar to make the handle.

Next, make the blade with calendar paper.

Cut the paper so it’s as long as possible.

Roll it tightly so it fits inside the plastic wrap core.

Apply cellophane tape to the paper and adjust it so it matches the inside of the core, then stick it in place.

Once it’s the right size, you’re done! You can twist to extend and retract it for play.

Be careful not to pull it out too far.

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Let’s make a bow and arrow

How to make a bow and arrow from a single plastic wrap core (Beginner)

Here’s how to make a bow and arrow from a plastic wrap core! First, poke a hole in the center of the core, then make four vertical cuts along the tube.

Bend the cut middle sections inward on both sides.

Next, use rubber bands and twine to make the bow.

Hook a rubber band onto the indented part of the bow to finish it.

Make the arrows using a bamboo skewer and paper.

Since bamboo skewers are light, be sure to wrap them with paper.

Once your arrows are ready, set up a target and try it out.

You might be surprised at how far they fly.

Make sure small children are careful.

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A climbing ladybug!

Easy magnet craft! A climbing ladybug! Recycle plastic wrap and toilet paper cores! #crafts #handmadeToys #summerVacationCrafts #recycledCrafts

Here’s how to make a ladybug toy you can play with using magnets.

First, decorate a half-sphere of Styrofoam to look like a ladybug using pens or any materials you like.

Attach a magnet to the back of the ladybug with double-sided tape.

Next, flatten a toilet paper tube and cut it in half.

Use double-sided tape to fix the cut piece around a wooden stick to form a ring, then attach a magnet so it attracts the ladybug’s magnet.

Make a “tree” using a plastic wrap (cling film) tube, and insert the stick inside the tube.

When you move the stick up and down, the ladybug will move too! It’s also fun to make other bugs or your favorite characters instead of a ladybug, so give it a try!

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Balloon pistol

Hit-the-target game powered by balloons! Super easy recycled craft: the “Balloon Pistol” #crafts #handmadetoys

You can play a fun target game using the power of a balloon! Use decorative pom-poms as the balls.

First, cut a balloon around the middle and attach it to a paper towel roll core.

Secure it with a rubber band so it won’t come off, and it’s ready! Put the decorative balls inside, pull back the balloon, and launch the balls to play.

Make the targets out of milk cartons.

It’s also recommended to decorate the launcher and shape it like a cool pistol using cardboard or any decorations you like.

Have fun with your own original ideas!

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How to make a pencil case

How to repurpose a plastic wrap core: Pen case edition

You can stand your favorite pens upright! Here’s how to make a cute pen case using a plastic wrap core.

First, cut the wrap core to a length that fits your pens.

It’s tough, so kids should have an adult help.

Next, place the core on thick paper, trace around it with a pencil, cut it out, and glue on a lid and a base for the case.

Once the glue dries, decorate it with your favorite wrapping paper or stickers.

Finally, roll up some thick paper, push it into the case, and trim any excess—and you’re done!

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Let’s research dialects

There are many words across Japan that are used only in specific regions.

Even if you use such dialects yourself, you might not realize they’re only spoken in that area, since you grew up with them.

It could be interesting to look into the dialect of the region where you live—or one nearby!

Fireworks with LEDs

Fireworks with LEDs [Summer Vacation Independent Research] No. 1

This is an experiment that forms the basis of electrical engineering! You’ll create “electronic fireworks” by changing the timing and sequence in which LEDs (light-emitting diodes) light up.

It’s a challenging independent project that requires understanding the principles as well as technical skills like soldering.

However, if it lights up like real fireworks, you’ll likely feel a great sense of accomplishment.