| TOPS Collection of Print Books | topscience.org | 15340 USD | — | — |
| 23CK Rocks and Minerals Class Kit (grades 6-12) | topscience.org | 4760 USD | — | — |
| 33CK Magnetism Starter Kit (grades 3 - 8) | topscience.org | 2470 USD | — | — |
| 14SK Kinetic Model Starter Kit (grades 7-12) | topscience.org | 1140 USD | — | — |
| Master Teacher Intermediate (Grades 4-8) Set of Three Books | topscience.org | 855 USD | — | — |
| Master Teacher Primary (Grades 1-3) Set of Three Books | topscience.org | 855 USD | — | — |
| 17SK Light Starter Kit (grades 6-11) | topscience.org | 665 USD | — | — |
| 11SK Oxidation Starter Kit (grades 6-10) | topscience.org | 644 USD | — | — |
| 32SK Electricity Starter Kit (grades 3-8) | topscience.org | 623 USD | — | — |
| #91 Global TOPS Resource Manual (grades 3-10) | topscience.org | 549 USD | — | — |
| 23SK Rocks and Minerals Starter Kit (grades 6-12) | topscience.org | 542 USD | — | — |
| 10SK Analysis Starter Kit (grades 5-10) | topscience.org | 391 USD | — | — |
| #35 Metric Measuring (grades 5-9) | topscience.org | 380 USD | — | — |
| #23 Rocks and Minerals (grades 6-12) | topscience.org | 380 USD | — | — |
| #41 The Planets and Stars (grades 7-12) | topscience.org | 380 USD | — | — |
| #37 Animal Survival (grades 3-8) | topscience.org | 380 USD | — | — |
| #44 Scale the Universe (grades 5-12) | topscience.org | 380 USD | — | — |
| #45 Pi in the Sky (grades 5-12) | topscience.org | 380 USD | — | — |
| #38 Green Thumbs: Radishes (grades 3-8) | topscience.org | 380 USD | — | — |
| #31 Perfect Balance (grades K-12) | topscience.org | 380 USD | — | — |
| #36 More Metrics (grades 6-10) | topscience.org | 380 USD | — | — |
| #42 Focus Pocus (grades 5-10) | topscience.org | 380 USD | — | — |
| #39 Green Thumbs: Corn and Beans (grades 4-12) | topscience.org | 380 USD | — | — |
| #43 Far Out Math (grades 9-12) | topscience.org | 380 USD | — | — |
| #33 Magnetism (grades 3 - 8) | topscience.org | 380 USD | — | — |
| #40 The Earth Moon and Sun (grades 5-12) | topscience.org | 380 USD | — | — |
| #32 Electricity (grades 3-8) | topscience.org | 380 USD | — | — |
| #21 Motion (grades 7-12) | topscience.org | 359 USD | — | — |
| #20 Magnetism (grades 8-12) | topscience.org | 359 USD | — | — |
| #18 Sound (grades 7-12) | topscience.org | 359 USD | — | — |
| #17 Light (grades 6-11) | topscience.org | 359 USD | — | — |
| #16 Pressure (grades 7-12) | topscience.org | 359 USD | — | — |
| 12SS Solutions Supplies (grades 6-10) | topscience.org | 328 USD | — | — |
| #13 Cohesion/Adhesion (grades 6-10) | topscience.org | 317 USD | — | — |
| #12 Solutions (grades 6-10) | topscience.org | 317 USD | — | — |
| #64 Primary Alphabet Soup (grades 1 - 3) | topscience.org | 317 USD | — | — |
| #62 Intermediate Alphabet Soup (grades 4-8) | topscience.org | 317 USD | — | — |
| #11 Oxidation (grades 6-10) | topscience.org | 317 USD | — | — |
| #63 Peaceful Procedures (grades 1-8) | topscience.org | 317 USD | — | — |
| #10 Analysis (grades 5-10) | topscience.org | 317 USD | — | — |