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40 Invention Ideas for Kids, With Free Design Worksheet

The world around us is full of items that started in someone else’s imagination. From light bulbs and airplanes to peanut butter and shampoo, inventors have used new ideas to make the world a better place. Start by teaching kids the engineering design process. Then encourage them to try one of these incredible invention ideas for kids or come up with one of their own!

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40+ Smart Invention Ideas and Activities To Inspire Innovative Kids printable download
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Design an Invention Worksheet

Help kids through the design process as they come up with an idea for an invention and follow it all the way through!

Cool Things Invented by Kids

Kids might believe they’re too young to invent anything meaningful. Prove them wrong by sharing these inspiring stories of real-life kids who made something new that the world really needed. For each one, we’ve included an invention idea challenge for kids inspired by the original.

Plus, learn more about 46 famous inventors and inventions everyone should know!

Popsicles

One of the world’s most popular frozen treats was originally invented by an 11-year-old! Learn more about Frank Epperson’s story from NPR.

Idea for an Invention: Invent a new and delicious portable food item, preferably one that’s healthy too.

Braille

Braille is a system of raised dots that allow those who are visually impaired to read with their fingers. This groundbreaking system was the brainchild of a teenager! Discover the story of Louis Braille at Forbes.

Idea for an Invention: Create a new way to help those with physical challenges communicate better with others.

Pediatric IV Backpack

When Kylie Simonds was receiving her cancer treatment, she found the large IV she had to lug around just one more frustration. To solve the problem, she invented an IV backpack to make the experience better for future kids. Read about Kylie’s inspiring story at ABC News.

Idea for an Invention: Design an innovative product to make things easier for kids undergoing any type of medical treatment.

Alzheimer Alert System

When Kenneth Shinozuka was 15, he wanted to find a way to keep his grandfather safe in case he wandered off and got lost. His invention, a pressure-activated messaging sock, won him worldwide acclaim. Find out more about Kenneth’s story at WebMD.

Idea for an Invention: Devise a new way to keep people safe in dangerous situations.

Hot Seat

After reading yet another story about a child who died in a hot car after being forgotten by caregivers, 14-year-old Alissa Chavez decided to do something about it. Her invention, Hot Seat, notifies parents if they walk away from their child in a car seat. Here’s more about Alissa and her invention from Raising Smart Girls.

Idea for an Invention: Devise a product to make the lives of parents and kids easier or safer.

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STEM Challenge Invention Ideas for Kids

STEM challenges are always classroom favorites, but many of them present real opportunities for kids to come up with a clever new invention. Start with these STEM challenge invention ideas, then take a look at our STEM topic pages for even more activities.

Egg Drop Challenge

This is a classic school STEM challenge, but it really does have broader applications. In addition to designing a container to protect an egg from a fall, encourage kids to take the next step by coming up with invention ideas that propose a real-life purpose for their container.

egg drop challenge sheet
We Are Teachers

Rube Goldberg Machine

These silly machines use a series of extraordinary steps to accomplish a single simple task. Students use them to learn about chain reactions, but they can also inspire creativity when it comes to solving problems. Set a basic task, like ringing a bell, and challenge kids to come up with the wackiest possible ways to make it happen!

Smartphone Projector

This is a popular classroom STEM project that utilizes a shoebox and magnifying lenses. Once kids have the basic concept down, encourage them to come up with a more advanced version with additional features like zoom, remote control, etc.

Fibonacci Living Space

The Fibonacci sequence appears frequently in nature, including nautilus shells. Challenge your students to take inspiration in this natural design phenomenon as they design an ideal personal living space using basic materials like cardboard, paper, tape, and glue. Urge them to learn more about different kinds of living spaces around the world, and to think about what would make a room, house, or other space more comfortable or eco-friendly.

Indoor Composter

Composting keeps food out of landfills and creates better soil for growing crops. But not everyone has room in their yard for a compost heap. Ask students to design an indoor composter instead, one that every family can keep in their kitchen.

Something That Flies

Learn about the four forces involved in the science of flight, and challenge your students to create a flying object using ordinary classroom materials.

Water Filter

Many people in the world lack easy access to clean drinking water. Challenge students to come up with a clever water filter, one that’s inexpensive, effective, and easy to use.

Oil Spill Cleanup

An oil spill can cause massive environmental damage, both in the ocean and on land. Innovate new, more efficient ways to clean up after an accidental spill, helping return Earth and its creatures to good health.

Mechanical Hand

Use simple materials to create a mechanical hand in this kid-favorite STEM challenge. Or take this invention idea a step further and challenge kids to create a mechanical hand or other artificial limb that could benefit those who’ve lost their own.

Something That Floats

Buoyancy is the property that helps objects float. Things that float well usually have a lot of air as part of their structure. Using ordinary materials, challenge your students to create something unique that is capable of floating.

“Build a Better …” Invention Ideas for Kids

Many inventors got their start by trying to improve on something that already existed. Challenge kids to come up with invention ideas that build better, more effective versions of some of these existing products:

  • Mousetrap
  • Portable shelter (e.g., a tent)
  • Squirrel-proof bird feeder
  • Pet care product (e.g., bed, leash, food/water dish)
  • Pet toy
  • Automatic toothpaste dispenser
  • Alarm clock
  • Backpack
  • Flashlight
  • Beverage container
  • Garden tool
  • Board game
  • Educational toy
  • School desk and/or chair
  • Smartphone app for kids
  • Toy box/storage
  • Transportation mode for kids
  • Multi-purpose hat
  • Shopping cart
  • Slip-proof socks
  • Silent shoes
  • Cereal-pouring machine
  • Glove-drying machine
  • Clothing or shoe organizer

Invention Contests for Kids

Think you’ve come up with something really innovative? Looking for a fun classroom activity to challenge and inspire future inventors? Enter these invention contests for a chance to see kids’ innovations produced on a wider scale, and even win cash and prizes!

Thomas Edison Pitch Contest

Students in grades 4 through 12 create and pitch invention ideas in a variety of categories. They have the chance to win prizes ranging from T-shirts and gift cards to a 3D printer for your school. They’ll even send you a maker kit full of valuable supplies to help you get started!

Past winning invention ideas: Smart recycling bin, easy parking app, water-runoff turbine

Learn more: Thomas Edison Pitch Contest

Young Inventor Challenge

Connect with professionals in the toy and game industry when you develop and pitch a new invention for this contest. Winners may earn the chance to have their design built and sold by one of the sponsoring companies. The contest is open to kids ages 6 through 18 and requires a pitch video and prototype.

Past winning invention ideas: Goo Shoe, Draw Into Crime, Ship of Treasure

Learn more: Young Inventor Challenge

Invention Convention

Teachers can use the Invention Convention curriculum in their classrooms, helping students develop projects to enter into local, regional, and national competitions. It’s open to kids in grades K-12, with winners eligible for all sorts of prizes.

Past winning invention ideas: Wrap-N-Go Pencil Holder, Smart Mailbox, Manure Mower

Learn more: Invention Convention

ExploraVision

This STEM competition asks entrants to pick a technology they want to improve, then research and submit a project detailing their proposed ideas. The contest has different requirements and categories for various ages, so this one is great for K-12 students.

Past winners: Artificial photosynthesis system, magnetic propulsion rocket launcher, mosquito trap

Past winning invention ideas: ExploraVision

Microfiber Innovation Challenge

Microplastics, tiny bits of plastic less than 5 mm long, can be harmful to animal life (including humans), especially when they get into the water supply. Take the Microfiber Innovation Challenge, and devise a new way to prevent microplastics from causing harm to our planet.

Learn more: Microfiber Innovation Challenge

Kids Invent Stuff

The brains behind this popular YouTube channel love creating the ideas of kid inventors! They accept submissions through their website, then choose their favorite innovations to build and feature in new videos on their channel.

Past winning invention ideas: Periscope hat, drill-powered shoes, finger forks

Learn more: Kids Invent Stuff

Don’t forget to grab your free Design an Invention worksheet!

design an invention
We Are Teachers

If you loved these invention ideas, check out our free-to-save worksheet to complete at home or in the classroom. The worksheet prompts students to work through the details of creating their invention.

Love these invention ideas and challenges? Check out STEM Activities for Kids of All Ages and Interests.

Plus, get more teaching ideas and inspiration straight to your inbox when you sign up for our free newsletters!


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