Forecast Model

This represents the expected annual growth (CAGR) based solely on a forecast model.
LEGO 45621 Science Kit 3-5 is a 336 piece Education set pending release in 2025. It consists of three building instructions, a double motor, a controller, two connection cards, a USB charging cable, and a sturdy stackable box. Classroom bundles add six kits, two multi-chargers, eight additional connection cards, and a replacement brick pack.

Once retired, the expected annual growth will be close to 2% after the second year, valuing the set between $428 and $436 shortly after it is retired.

For Sale (New/Sealed)

Pre-order 45621 Science Kit 3-5 $399.95

Sets in Education / Science

45622 Science Kit 6-8

Theme / Subtheme Education / Science
Year 2025
Pieces 424
Availability Pending release
45622 LEGO Education Science Kit 6-8
Retail $499.95
Not yet released
Available August, 2025

45655 Replacement Pack for Middle School

Theme / Subtheme Education / Science
Year 2025
Pieces 381
Availability Pending release
45655 LEGO Education Science Replacement Pack for Middle School
Retail $24.95
Not yet released
Available August, 2025

45654 Replacement Pack for Elementary School

Theme / Subtheme Education / Science
Year 2025
Pieces 350
Availability Pending release
45654 LEGO Education Science Replacement Pack for Elementary School
Retail $24.95
Not yet released
Available August, 2025

45620 Science Kit K-2

Theme / Subtheme Education / Science
Year 2025
Pieces 277
Availability Pending release
45620 LEGO Education Science Kit K-2
Retail $329.95
Not yet released
Available August, 2025

45657 Connection Cards Pack

Theme / Subtheme Education / Science
Year 2025
Pieces 8
Availability Pending release
45657 LEGO Education Science Connection Cards Pack
Retail $40.95
Not yet released
Available August, 2025

45623 Multi-charger

Theme / Subtheme Education / Science
Year 2025
Pieces 3
Availability Pending release
45623 LEGO Education Science Multi-charger
Retail $139.95
Not yet released
Available August, 2025

45624 Multi-charger

Theme / Subtheme Education / Science
Year 2025
Pieces 1
Availability Pending release
45624 LEGO Education Science Multi-charger
Retail $139.95
Not yet released
Available August, 2025

45650 Single Motor

Theme / Subtheme Education / Science
Year 2025
Pieces 1
Availability Pending release
45650 LEGO Education Science Single Motor
Retail $149.95
Not yet released
Available August, 2025

45651 Double Motor

Theme / Subtheme Education / Science
Year 2025
Pieces 1
Availability Pending release
45651 LEGO Education Science Double Motor
Retail $179.95
Not yet released
Available August, 2025

45652 Education Controller

Theme / Subtheme Education / Science
Year 2025
Pieces 1
Availability Pending release
45652 LEGO Science Education Controller
Retail $99.95
Not yet released
Available August, 2025

45653 Color Sensor

Theme / Subtheme Education / Science
Year 2025
Pieces 1
Availability Pending release
45653 LEGO Education Science Color Sensor
Retail $89.95
Not yet released
Available August, 2025
Explore science concepts in a hands-on way with a ready-to-use kit including 40 NGSS and local standards-aligned lessons and supplies for four students.

LEGO® Education Science offers a comprehensive science kit featuring LEGO® bricks, motors, and detailed building instructions. Plus, enjoy free access to the Teacher Portal, where you'll find state-standardized lesson presentations ready to use right away, a resource library, and facilitation notes.

336 LEGO® bricks, providing limitless hands-on possibilities
3 building instructions
1 double motor
1 controller
2 connection cards
1 USB charging cable
Sturdy stackable box (16.8 x 4.1 x 12.1 in.)
Classroom bundles include 6 science kits along with:
2 multi-chargers
8 additional connection cards
1 replacement pack of LEGO® bricks
Description provided by LEGO©