Free Halloween Science Worksheet (Fun With The Periodic Table)

The Halloween science worksheet was a surprise hit in our house.

What started as a fun way to bring chemistry into our October lessons ended up being one of my son’s favorite activities. He got to crack secret codes using the periodic table and didn’t even realize how much he was learning.

This Halloween printable blends spooky word puzzles with real science, making it a great fit for both classroom and at-home use during the spooky season.

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Halloween Periodic Table Activity

This Halloween chemistry worksheet uses a fun periodic table decoding activity to make chemistry feel like a game.

It’s a three-page printable that keeps kids engaged with puzzles while quietly reinforcing science skills. Here’s what’s included:

• Decoder Puzzle: Kids use atomic numbers to spell out Halloween-themed words. For example, 5 (Boron) and 85 (Astatine) combine to form “BAt.” It’s a clever way to practice reading the periodic table without it feeling like a chore.
• Simplified Periodic Table: A kid-friendly version of the table is included for reference. It helps younger learners match element symbols with atomic numbers. For older kids, try skipping the table to see how much they remember on their own.
• Answer Key: Once they’ve cracked the codes, the final page lets them check their work. It’s a low-pressure way to reinforce what they’ve learned while building confidence in problem-solving.

This worksheet is a great way to mix seasonal fun with real learning, ideal for teachers adding a festive touch to their science lessons or parents looking for creative Halloween printables at home.

Why Kids Actually Want to Finish This Worksheet

Because it plays like a secret-code game, every clue feels like a mini mystery to crack. When they see that 5 (B) + 85 (At) spells “bat,” they forget it’s chemistry practice and just enjoy the “aha!” moment.

The spooky vocabulary, bones, poison, bat, ghost, keeps the Halloween vibe front-and-center, so even reluctant learners stay curious.

And the instant payoff of each solved word gives a quick hit of success, nudging them to tackle the next puzzle and reinforcing periodic-table facts without a single lecture.

What They’re Learning (Without Realizing It)

Even though it feels like a game, these science worksheets build real academic skills along the way:

• Chemistry foundations: Kids get repeated, hands-on practice with the periodic table, matching symbols to atomic numbers, and recognizing patterns.
• Logic and problem-solving: Decoding each word takes focus and critical thinking, making it a fun brain workout.
• Vocabulary growth: They’re exposed to new Halloween-themed words, reinforcing spelling and language skills.
• Interdisciplinary thinking: It blends science with word puzzles and number matching, quietly reinforcing multiple subjects in one go.

More Halloween Puzzles for Kids

If your child enjoys the periodic table challenge, these Halloween-themed puzzles are a great way to keep the momentum going:

• Halloween crossword printable: Clues lead to spooky words like ghost, witch, and candy, giving kids a chance to build vocabulary and practice spelling in a festive format.
• Halloween word scramble: Jumbled Halloween words challenge kids to think critically as they rearrange letters into something that makes sense, like turning NBOES into bones.
• Halloween word search: A low-pressure way to practice visual tracking and pattern recognition, perfect for quiet moments or warm-ups before bigger activities.
• Halloween escape room printable: Turn your living room into a haunted lab or ghostly hideout with this clue-based game. Great for siblings or small groups, it adds teamwork and storytelling into the mix while keeping kids thinking.

Grab Your Free Halloween Periodic Table Worksheet Here!

Ready to grab your free printable? Just pop your name and email into the form below, and it’s all yours!

If you don’t see the form below, click here to get the free Halloween science worksheet.

For November, you can also enjoy our free Thanksgiving science worksheet.

Last Updated on 14 July 2025 by Clare Brown