Stegosaurus Plates, Spikes & Sophie Worksheets

Fact-checked Stegosaurus worksheets for ages 8–12: label the Stegosaurus, graph the real plate heights of Sophie, the Natural History Museum’s Stegosaurus, do plate and spike maths with published measurements, compare weight estimates, find out about its small brain, build a timeline and try a true-or-false quiz, with an answer key.

What’s inside:

- Label the Stegosaurus

- Graph Sophie’s plates: a bar chart of the 19 real plate heights from a 2015 scientific study

- Measuring the plates: maths questions using the real measurements

- Four tail spikes: spike maths with real lengths

- How heavy was Sophie? Working with weight estimates

- A small brain, and no second one

- 150 years of Stegosaurus: cut-out timeline cards

- True or false quiz (10 questions)

- Answer key

- Credits, licence & sources

Pages: 11 (including cover and credits). Sizes: A4 (210 × 297 mm) and US Letter (8.5 × 11 in), both PDFs included in one zip.

Printing: Print at 100% / actual size on A4 or US Letter. Inside pages use light backgrounds and print well in black and white; covers are dark, so start from page 2 to save ink.

Every fact is checked against the Natural History Museum (London), the Smithsonian, the American Museum of Natural History and peer-reviewed papers, plus the Colorado State Archives for the state-fossil fact (checked 27 Oct 2026), and the sources are listed on each pack’s credits page. Dinosaur sizes and weights are estimates, and where scientists still disagree, such as what the plates were for or how heavy Stegosaurus was, the packs say so. Photos and historical drawings are public-domain or CC0 images from Wikimedia Commons; new drawings, puzzles and layouts are REALLYBYTE’s own work, and those drawings are simple schematics, not exact copies of fossils. Not endorsed by the Natural History Museum, the Smithsonian or the American Museum of Natural History.

Licence: personal and single-classroom use. You may print as many copies as you need for your own family or your own class, and share it with your class through a password-protected platform. Please don’t resell, re-upload or share it publicly. For school-wide use, please email info@reallybyte.com.

Made by REALLYBYTE, the team behind stegosaurus.dinosaurs.im. Questions: info@reallybyte.com

This is a digital download: no physical item will be shipped.