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Printable School Supply STEM Challenge Cards for Back-to-School

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The first days of school are full of energy, curiosity, and maybe even a little nervousness. It’s the perfect time to get kids excited about learning. One of my favorite ways to do that? Hands-on STEM learning and challenges! That’s exactly what I created with my School Supply STEM Challenge Cards — a low-prep, high-engagement activity that’s perfect for back-to-school week and beyond.

school supply stem challenge cards

What Are School Supply STEM Challenge Cards?

These printable challenge cards turn ordinary classroom or homeschool supplies into extraordinary learning opportunities. You’ll definitely want to add them to your lesson plans!

You don’t need fancy STEM kits or expensive gadgets — just the everyday items you already have on hand. Think pencils, paperclips, index cards, rubber bands, and rulers.

Here’s what you get:

  • A set of printable STEM challenge cards

  • Each card features a unique building or design prompt

  • Works for individuals, partners, or small groups in elementary school and middle school 

  • Minimal prep — just print, gather supplies, and play!

Shop Here: School Supply STEM Challenge Cards

Examples of School Supply STEM Challenges

Here’s a sneak peek at the kinds of creative, hands-on prompts your students will tackle:

  • Tower Power: Build the tallest free-standing tower you can.

  • Strong Bridge: Create a bridge that can hold a stack of books.

  • Famous Landmark: Build a famous structure or landmark

  • Launch It: Make a working catapult.

These challenges get kids thinking like engineers, testing their ideas, and improving through trial and error — all while having a blast. You can decide which supplies to use based on your budget and what you have on hand, then let the kids use their creativity to build away!

Create a bin of supplies you think students will need to create each challenge. 

Suggested STEM Supplies for the Challenge Cards:

You probably have most of these in your STEM classroom already! 

Why These STEM Challenges Are Perfect for Back-to-School

  1. Instant Engagement – Kids light up when you say “Today we’re building something!”

  2. Collaborative Fun – Great, fun hands-on learning for getting to know new classmates or co-op friends.

  3. Cross-Curricular Skills – Combines science, math, engineering, problem-solving skills, critical thinking, and creativity.

  4. Low Prep for You – No complex setup; use the supplies you already have.

Whether you teach in a classroom, lead a homeschool group, or work with after-school programs, these hands-on activities and challenges adapt beautifully to your setting.

How to Use the School Supply STEM Challenge Cards

Classroom:

  • Divide students into small groups

  • Give each group a different challenge card

  • Set a timer (10–20 minutes works well)

  • End with a quick “design share” where each group explains their creation

Homeschool:

  • Use as a fun Friday activity or rainy day project

  • Challenge siblings to compete or collaborate

  • Keep a “STEM bin” ready with supplies so you can grab and go

Co-Ops or Clubs:

  • Rotate challenges among tables

  • Encourage teams to adapt their designs after seeing other solutions

  • Award fun “STEM badges” for creativity, teamwork, or functionality

Tips for Success

  • Start Simple: The first challenge can be a quick win to build confidence.

  • Ask Open-Ended Questions: “What would happen if you…?” or “How could you make this stronger?”

  • Encourage Redesign: Let kids tweak their builds after testing — that’s where real learning happens!

  • Celebrate All Attempts: The goal is creativity and persistence, not perfection.

Get Your School Supply STEM Challenge Cards

The School Supply STEM Challenge Cards are ready for you to download, print, and use immediately. It includes 10 STEM challenge cards to be used at back to school time for a fun activity for your students. Use a box of school supplies and challenge kids to build the objects listed on the various cards. 

Add the School Supply STEM Challenge Cards to Your Cart Here:


Bring the joy of creative problem-solving into your lessons the first week of school — and keep the fun going all year long.

Related STEM Activities You’ll Love

Karyn Tripp is a homeschool mom of four, former teacher, and creator of Teach Beside Me. With a degree in Family and Consumer Science Education and 15+ years of homeschooling experience, she strives to help others teach creatively through hands-on learning.

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