The Curiosity Box Promo Codes and Coupons September 2025

The Curiosity Box

CuriosityBox.com is a subscription service created by VSauce's Michael Stevens, offering quarterly boxes filled with science-themed toys, gadgets, and educational materials. Each box contains carefully curated items designed to spark scientific curiosity and learning, accompanied by detailed explanations and experiments. The service aims to make science accessible and fun for both adults and children.

curiositybox.com

Today's The Curiosity Box discount codes

TOP PICK

20% off

89 uses

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worked 7 months ago

20% Off Subscriptions at The Curiosity Box

10% off

23 uses

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worked about 1 month ago

10% Off (Storewide) at The Curiosity Box

$15 off

94 uses

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worked about 1 month ago

$15 Off Storewide at The Curiosity Box

10% off

22 uses

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worked about 1 month ago

10% Off Storewide at The Curiosity Box

Featured The Curiosity Box Products

The Body Deck

This high-quality deck of translucent playing cards features a detailed set ofcross sections that assemble into a 3D image of the human body.Not to be used (obviously) for any medical purposes.Not available for purchase as a standalone item. Get The Body Deck FREE when you subscribe!

USD 20.00

Curiosity Box - Annual Plan

While Supplies Last:Get the Denary Dice as a free gift with your first box!Pay less with our Annual Plan Or pay-as-you-go with our Quarterly Plan. All subscriptions automatically renew. Cancel anytime.

USD 280.00

Assassin's water bottle - beginner

This bundle consists of 2 items. Alternatively, you can get the expert-tier bundle, which includes both the Assassin’s water bottle and Schrödinger’s cat water bottle, 4 unique sleeves, and 2 engineering prints.Shrödinger's Cat Water Bottle: You must not use the Assassin’s water bottle to store poison, despite what the name might suggest. If you did, one side of the bottle would be deadly while the other would not. The fate of the person or animal drinking from the bottle would depend on the unobserved actions of the pourer. Which is reminiscent of some thought experiment involving a cat. This bottle incorporates a cat head design which is half white, and half black - half dead, and half alive. It also has the Steve Mould, Vsauce and Curiosity Box logos. Each side can hold up to 450ml of liquid, with a combined volume of 900ml. When demonstrating the magic trick we recommend you cover the bottle with a sleeve to hide the two compartments. Steve has unique stories for each sleeve: The P3M1 logo sleeve: There are only 17 different wallpapers. Which is to say, there are only 17 planar symmetry groups. My favorite is called the p3m1 group, which is almost what is shown on the logo sleeve. If all the logos were the same, it would be p3m1. But by sharing the logos between me and Michael, I have broken that symmetry. Which is what good artists do. I’m not sure what the symmetry group is now.

USD 65.00

Curiosity Box - Quarterly Plan

OUR MOST POPULAR ITEM EVER, FREE!Get the Denary Dice free and save $5 with every box with an ANNUAL PLAN All subscriptions automatically renew. Cancel anytime.

USD 60.00

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The Curiosity Box deals available today

Active The Curiosity Box codes

20% off

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10% off

22 uses

high

worked about 1 month ago

10% Off Storewide at The Curiosity Box

10% off

10 uses

high

worked about 1 month ago

10% Off (Storewide) at The Curiosity Box

10% off

24 uses

high

worked about 1 month ago

10% Off Storewide at The Curiosity Box

$15 off

65 uses

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worked about 1 month ago

$15 Off Storewide at The Curiosity Box

More The Curiosity Box Products

The Light-year Water Bottle

Get this Light-year Water Bottle free when you become an annual subscriber for our new box! Just pay shipping. The bottle holds the amount of water it would take to stretch one lightyear, if all the molecules were laid end-to-end in a single file line. The amount of water it takes for that monomolecular line to reach0.1–0.9 of a light year are also marked, as are a few other curiousand unusual volumes.Not available for purchase as a standalone item.

USD 30.00

Assassin's water bottle - expert

The official assassin's water bottle with poison measurements AND Schrodinger's cat bottle Assassin’s water bottle Schrödinger’s cat water bottle Knight’s Tour sleeve Asteroids sleeve Braids sleeve Steve Mould mini poster Michael Stevens mini poster Unique P3M1 logo sleeve The official Assassin’s bottle with poison measurements: What is a poison? LD50 is an acronym for "median lethal dose" and refers to the amount of a substance that is lethal to half of a group of test animals. The Assassin's water bottle provides a series of measurements with approximate LD50s of francium, the Brazilian wandering spider venom, antifreeze, mercury, and orange juice (yes, too much of anything is a bad thing). The LD50s are based on Steve Mould’s body weight and translate into how many Micro (10^-6), Kilo (10^3) or Mega (10^6) Steves it can kill. Each side can hold up to 450ml of liquid, with a combined volume of 900ml. Schrödinger’s cat water bottle: You must not use the Assassin’s water bottle to store poison, despite what the name might suggest. If you did, one side of the bottle would be deadly while the other would not. The fate of the person or animal drinking from the bottle would depend on the unobserved actions of the pourer. Which is reminiscent of some thought experiment involving a cat. This bottle incorporates a cat head design which is half white, and half black - half dead, and half alive. It also has the Steve Mould, Vsauce and Curiosity Box logos. Each side can hold up to 450ml of liquid, with a combined volume of 900ml. When demonstrating the magic trick we recommend you cover the bottle with a sleeve to hide the two compartments. Steve has unique stories for each sleeve: Knight’s Tour sleeve: If you place a knight on an empty chess board, it’s possible to visit every square on the board exactly once and end up back where you started, only making legal knight moves. That’s called a knight's tour. It works for an 8x8 grid of squares but it’s not guaranteed for other sizes of board. Specifically, if the board is an odd number of squares wide and an odd number of squares tall, it can’t be done. UNLESS you curl the board into a cylinder and allow the knight to make moves that jump across the seam. In other words, in a cylindrical universe the knight’s tour is possible even on an odd x odd board. Sometimes. This sleeve shows a solution for an 11x9 board. Asteroids sleeve: In the classic arcade game Asteroids, when you fly off the left edge of the screen you reappear from the right. In other words, the Asteroids universe is topologically equivalent to a cylinder. So we put it one one. “But hold on,” I hear some of you say, “if you fly off the bottom, you reappear from the top, so the Asteroids universe is a torus.” That’s true but where would I have put the spout on a doughnut shaped water bottle? Can you figure out why the score is 852655? Braids sleeve: Alexander's Theorem states that all knots can be represented as a closed braid. In other words, any knot, in the mathematical sense, can be arranged into a ring of intertwined threads with no thread reversing direction around the ring. What a beautiful thing to embed on a cylinder! The first knot, drawn in white, isn’t really a knot at all, it’s the unknot: just a loop of string. The coloured knots represent all possible knots up to a crossing number of 3 (knots 31, 41, 51, 52, 61, 62, 63 in Alexander–Briggs notation). The last knot in black doesn’t fit the sequence. It’s the 946 knot, and it’s included on this sleeve because it is my favorite! See if you can spot it in my Elastic Knots video. The P3M1 logo sleeve: There are only 17 different wallpapers. Which is to say, there are only 17 planar symmetry groups. My favorite is called the p3m1 group, which is almost what is shown on the logo sleeve. If all the logos were the same, it would be p3m1. But by sharing the logos between me and Michael, I have broken that symmetry. Which is what good artists do. I’m not sure what the symmetry group is now. Steve Mould and Michael Stevens mini posters: At expert level you also get mini versions of the engineering prints showing how the bottle works. Size: 8.27 inches by 11.67 inches (A4) each and unsigned.

USD 159.00

Curiosity Box - Quarterly Plan

OUR MOST POPULAR ITEM EVER, FREE!Get the Denary Dice free with an ANNUAL PLAN All subscriptions automatically renew. Cancel anytime.

USD 60.00

Curiosity Box - Annual Plan

USD 220.00

$15 off

44 uses

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worked about 1 month ago

$15 Off Storewide at The Curiosity Box

10% off

22 uses

high

worked about 1 month ago

10% Off (Storewide) at The Curiosity Box

20% off

7 uses

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worked about 1 month ago

20% Off Storewide at The Curiosity Box

5% off

920 uses

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worked about 1 month ago

5% Off Selected Items

Sustainability Score

62%

While CuriosityBox shows commitment to educational value, their sustainability practices need improvement. They use some recyclable packaging but lack transparency about their supply chain and manufacturing processes. Limited information is available about their environmental impact and labor practices. The company makes some effort to reduce plastic usage but could improve their overall environmental initiatives and reporting.

About The Curiosity Box

3.0 (1)

FAQs

: The best discounts typically appear during Black Friday (November) and Cyber Monday, with savings up to 30% off. New subscribers can often find 15% off their first box by signing up for the newsletter.
: Yes, annual subscriptions typically come with a 10-15% discount compared to quarterly payments. Special bundle deals are also offered during holiday seasons.
: Generally, only one discount code can be applied per order. However, subscriber rewards points can sometimes be combined with seasonal promotions.
: The best time to subscribe is typically before the start of a new quarter (January, April, July, or October) to ensure you receive the current box. Holiday seasons also offer good deals.
: In the past month, The Curiosity Box has launched 0 new promo coupons for shopper discounts. This indicates that The Curiosity Box does not provide regular opportunities for customers to save money on their purchases.
: On average, The Curiosity Box provides 5.5 discount coupons each month. Based on historical data, the average time between The Curiosity Box coupon releases every 5 days. However, this rate depends on various factors such as seasonal promotions (Black Friday, Cyber Monday, etc.), product launches, or other marketing initiatives. To stay informed about upcoming discounts and promotions, we recommend checking The Curiosity Box website regularly, subscribing to email newsletters, and following them on social media.
: The Curiosity Box is offering 12 working store-wide codes, however they are also offering 41 additional discount codes with a best discount of 20% off
: terra.coupons is the #1 provider of discount codes for your favorite retailers, such as The Curiosity Box. As a crowd-sourced platform for coupon codes, we accurate codes for over 10,000 stores. Save time and avoid expired codes by checking terra.coupons for the latest The Curiosity Box discount codes.

Curated by

Linda S.

Content Writer

Last updated September 2025

This page was curated by Linda, a savings and discount enthusiast from sunny Sarasota, Florida. With a keen eye for unbeatable deals, Linda ensures that all codes are checked and curated daily. She's also a certified yoga instructor who loves to share wellness tips. Check back tomorrow for more savings and perhaps a little zen!

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From the blog

2025-04-29

The Curiosity Box Promo Codes and Coupons September 2025