Space Calling – Solar System & Space (Space Science App + Printable Workbook, Grades 3–5)

Explore the solar system with Nova the Space Cat! Space Calling is an interactive space science app plus a 72-page printable workbook for grades 3–5. Kids meet the Sun, all 8 planets, the Moon and the dwarf planet Pluto through real NASA photos, listen to every fact card, lesson and question read aloud in clear US English, play 8 games and earn badges and planet passport stamps as they learn.

It opens in any web browser and works offline on computers, tablets, phones and classroom whiteboards. No app store, no sign-in and no internet needed after download. Play online too: your buyer code is in YOUR_ONLINE_ACCESS_CODE.txt in the download. The downloaded app works offline with no code.

What's in the app

• Explore the Solar System – the Sun, 8 planets, the Moon and Pluto, each with a real NASA photo, a size-to-scale picture and a fact card: size, distance from the Sun, length of a year and a day, moons, temperature, nickname and fun facts. Every card can be read aloud.
• 9 short spoken lessons with diagrams – the Sun is a star, the planets, day and night, seasons and Earth's orbit, phases of the Moon, stars and constellations, dwarf planets, asteroids and comets, gravity, and exploring space. Each ends with a quick check.
• Space Words – 32 flip flashcards for key vocabulary.
• Planet Parade – put the planets in order from the Sun.
• True or False – quick-fire space facts by topic.
• Space Quiz – multiple-choice questions on every topic.
• Moon Phase Match – name the 8 phases and put them in order.
• Bigger or Closer? – compare planets by size, distance, year length and moons.
• Which Space Object Am I? – read up to 3 clues and guess.
• Space Spelling – listen, then spell planet names or space words.
• Mission Challenge – 15 mixed questions with an optional timer. Earn a rank from Space Cadet to Galaxy Captain.
• My Badges – a badge for each topic and a passport stamp for each planet.
• Teacher & Parent page – NGSS grades 3–5 standards covered, tips, a fact answer key and a glossary.

What's in the printable workbook (72 pages, US Letter and A4)

• Cover, how-to-use guide and "Meet Nova" space journal
• Solar system and planet facts at a glance
• Study pages for the Sun, every planet, the Moon and Pluto
• Planet order cut-and-paste, size comparisons, data reading and a bar graph
• Day and night, shadow tracker, seasons and hours of daylight
• Moon phases, name the phase and a Moon journal
• 4 connect-the-stars constellations and make your own
• Dwarf planets, asteroids and comets, gravity and "weigh yourself on the Moon"
• Space exploration timeline and design a Mars rover
• Glossary, word matching, fill in the blanks, 4 word searches and 2 crosswords
• 43 fold-over flashcards to cut out
• 4-page space test, mission checklist, answer keys and a certificate

Who it's for

Homeschool families, 3rd–5th grade teachers, tutors and any young space fan. Great for science units on Earth and space (NGSS 5-ESS1-1, 5-ESS1-2, 5-PS2-1), morning work, centers and review games.

How to open it

Download the zip file and unzip it. Open the Space_Calling folder and double-click index.html. It works in Chrome, Edge, Safari and Firefox. The workbook PDFs are inside the same folder. Full instructions are in README.txt. You can also open the live app at https://space-calling.pages.dev and enter your buyer code.

Please note

• This is a digital download. No physical item will be shipped.
• Progress is saved in the browser on each device.
• Facts are rounded for grades 3–5. There are 8 planets; Pluto is taught as a dwarf planet.
• For personal and single-classroom use. Please do not share or resell the files.

Richard Sim ©