Mars vs Earth Worksheets

Fact-checked Mars vs Earth worksheets for ages 8–12: compare size, days, years, gravity, seasons, air and temperature using numbers from NASA’s fact sheets, with maths questions, a true-or-false quiz and a full answer key.

What’s inside:

• Fact file: Mars and Earth side by side (NASA fact-sheet numbers)
• - How big is Mars? Circles drawn to scale
• - Days and years on Mars, plus your Mars birthday
• - What would you weigh on Mars?
• - Mars seasons bar chart
• - Air and temperature on Mars
• - True or false quiz (10 questions)
• - Answer key
• - Credits, licence & sources

Pages: 10 (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 NASA and ESA web pages (checked 25 Oct 2026) and the sources are listed on each pack’s credits page. Facts that can change, such as records and mission counts, are true as of that date. Photos are public domain NASA images (with partners named), from Wikimedia Commons; drawings, puzzles and layouts are REALLYBYTE’s own work. Not endorsed by NASA or ESA.

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 mars.planets.im. Questions: info@reallybyte.com

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