Third graders will be hooked! A collection of science project ideas using everyday materials
For summer vacation independent research, especially for third graders, it’s common to think, “I want to pick an interesting topic, but I don’t want it to be too hard.” Actually, with familiar materials and a little creativity, you can do experiments and crafts packed with scientific discoveries.
Here, we introduce curiosity-sparking ideas like learning about chemical reactions by making bread, observing plant mechanisms with colorful flowers, and reviving a dried-out marker.
Try exciting research and craft projects that will make your friends say, “Awesome!”
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- Toys you can make from cardboard crafts! Authentic ideas you can build and play with
Ideas for Independent Research Projects Using Everyday Materials That Will Fascinate 3rd Graders (81–90)
Cute herbarium

Why not try making a herbarium, a popular interior decoration? Prepare a container, your favorite flowers and beads, and baby oil.
First, place the flowers and beads into the container, being careful not to overfill it.
Also, if anything tends to float when put in liquid, soak it in the liquid beforehand.
Once you’ve added all the parts, slowly pour in the baby oil, close the container lid, and it’s done.
You can also focus on choosing a stylish container and decorate it with stickers or washi tape to make it extra cute.
Torokira Keychain

Do you know those cute accessories with a little doll floating in a tiny plastic bag? You often see them as prizes at festival raffles, but actually, you can make them yourself.
You only need items mostly from a 100-yen shop—like a soft card holder, beads and glitter, liquid laundry starch, and masking tape—so it’s a budget-friendly craft project.
Add cutouts of your favorite character or idol to the decorations, and it instantly becomes merch for your fave! You’ll want to make them for everyone!
Transparent cute coaster

Summer is supposed to be hot, but don’t you feel like the summers lately are getting hotter every year? When it’s hot, we crave cold drinks—so why not make coasters to brighten up your drink time and turn it into a summer science project? You’ll be using two-part resin and other chemicals, so be sure to have an adult or an older sibling help you when handling them.
Aside from working with the chemicals, it’s basically just decorating coasters, so even small children can join in! We’re looking forward to seeing your cool, refreshing coasters!
10 Musical Instruments You Can Make with Plastic Bottles
@kajiijapn We’re introducing 10 types of instruments you can make with plastic bottles!Plastic bottle#Summer vacation homeworkSummer Vacation CraftIndependent Research
Original Song – Everyday-Item Instrument Unit kajii – kajii / Future Instruments Lab
Plastic bottles are often used as materials for crafts.
So this time, how about making musical instruments with plastic bottles? Empty bottles can become drums, flutes, or maracas… With a bit of creativity, they can transform into instruments you can actually play! Bottle caps can also be turned into instruments by combining them with other materials, so don’t throw them away—save them.
It’s also a great idea to keep notes on how the sound changes depending on where you make holes and what you put inside.
Handmade chenille keychain
@n.annlee321 Yuraaan♪ It looks so cute when you display it 🥹💕ParentingChildcaretranslation#Kindergarten#HandmadeToysChildcare
♬ Monkeys Spinning Monkeys – Kevin MacLeod & Kevin The Monkey
Let’s make a cute bee keychain.
First, stick double-sided tape all over a chenille stem and shape it into a rectangle.
Wrap a yellow chenille stem around it, then wrap a brown one to create the stripes.
Make wings from a clear file sheet, attach them to the body with the brown chenille stem, and add eyes.
Finally, attach the keychain hardware and you’re done! With a bit of creativity, you can make all kinds of insects and animals, so try making your own original keychains.
Handmade Happy Noodles
@n.annlee321 A pretty surprising way to make noodles 🤣 The packaging turned out so cute 🥹💓#DesignedWithCanva#CanvaPartner
♬ Electro Swing with retro cool brass & piano(1088312) – Ponetto
Looks just like the real thing! Let’s handcraft some happy noodles.
Flatten a cotton ball made from yellow embroidery thread to form a lump of noodles.
Also, wrap another embroidery thread around chopsticks and soak it in water mixed with liquid starch.
Once it dries and you remove it, it will turn into curly noodles, so make some of those too.
Use a small paper cup as the container and attach a package label you designed with a design app.
Put in the noodles and a packet of toppings, then stick on the lid to finish! You might even be able to use it as a keychain if you add some parts.
Ideas for Independent Research Projects Using Everyday Materials That Will Fascinate 3rd Graders (91–100)
Cute mysterious bottle

A mysterious bottle where two liquids won’t mix even when tilted.
It’s a fun idea that works great as interior decor or a small gift.
First, fill the bottle about halfway with baby oil.
Next, add colored water tinted with food coloring.
Put in glitter or holograms as you like, cap it, and decorate the bottle to make it cute—and you’re done! The method is very simple, so even younger elementary school children can enjoy making it.
Along with the craft, try summarizing both your own ideas and the correct explanation for why baby oil and water don’t mix.



