Green Kid Crafts Discovery Box review

Green Kid Crafts packs more separate activities into a box than anything else on this list: 4 to 6 STEAM projects plus a 12-page magazine that guides the learning. There are two lines. The Discovery Box is for ages 5 to 10+ and leans toward science experiments, while the Junior Box is for ages 3 to 5 and has more craft than science, in the company's own words. Themes named on the site include Shapes and Structures, Solar System and Rainforest Science. Prices run from $39.95 per box month to month down to $31.95 per box on a 12-month plan, and every box adds $4.95 for US shipping, so the real 12-month cost is $36.90 per box. The company was founded by an environmental scientist and describes itself as a sustainable business. It ranks below the engineering boxes because individual projects are smaller, and the shipping fee makes it pricier than Little Passports.

Who it is for

kids 3 to 10 who like a mix of science and craft

Price

$31.95 per box on the 12-month plan, $39.95 month to month, plus $4.95 per box US shipping.

12 Months $31.95/box + $4.95/box SHIP
Quoted from the vendor pricing page on November 12, 2026.

Key features

• 4 to 6 educator-designed STEAM projects in every box
• 12-page magazine with each themed box
• Discovery Box for ages 5 to 10+, Junior Box for ages 3 to 5
• 1, 3, 6 and 12-month plans
• Boxes are kitted by hand in San Diego, California

Strengths and weaknesses

• Strength: More projects per box than any other pick here, at 4 to 6
• Strength: Junior Box covers ages 3 to 5
• Strength: Gift subscriptions do not auto-renew
• Weakness: $4.95 per box US shipping on top of the box price
• Weakness: $39.95 per box month to month is the highest monthly box price on the list
• Weakness: Junior boxes lean more toward craft than science, according to the company

Key facts

• Ages: 3 to 5 (Junior), 5 to 10+ (Discovery)
• Price: From $31.95 per box
• Shipping: $4.95 per box in the US
• Projects per box: 4 to 6
• Extras: 12-page magazine

Where it ranks

Green Kid Crafts Discovery Box is No. 6 in our Best STEM Subscription Boxes verdict.