For 5th grade, one of the best free photosynthesis games is Happy Sun Farm on Legends of Learning — a 15-minute, standards-aligned game (NGSS Transfer of Light Energy) where students learn how plants turn light into energy. It’s free for teachers, works on iPad, and can be assigned to a whole class in a couple of clicks. Below are the top free photosynthesis games for grades 3–5, with grade levels, playtime, and teacher ratings.
Best free photosynthesis games for 5th grade (grades 3–5)
| Game | Playtime | Grades | Teacher rating | What students do |
| Happy Sun Farm | 15 min | 3–5 | 4.4 ⭐ | Learn about light and the transfer of energy at Happy Sun Farm. |
| Battle Garden | 13 min | 3–5 | 4.3 ⭐ | Guide a young plant to gather nutrients, water, and sun to survive and grow. |
| Masterplant | 25 min | 3–5 | 4.6 ⭐ | Raise and care for a plant — feed it, help it grow, and protect it. |
| Farm of Future | 16 min | 3–5 | 4.3 ⭐ | Play an astronaut cultivating plants to settle newly discovered planets. |
| Biosphere Architect | 27 min | 3–5 | 4.1 ⭐ | Build a balanced ecosystem where producers, herbivores, and decomposers thrive. |
Top pick for 5th grade: Happy Sun Farm — it’s the most directly aligned to the light-energy side of photosynthesis, short enough for one class period, and built for the 3–5 grade band. Its vocabulary covers energy, light, photosynthesis, light energy, and chemical energy, and it’s aligned to the NGSS learning objective Transfer of Light Energy (ES-PS3.B-2).
Teaching photosynthesis in 6th grade or want more depth?
If your 5th graders are advanced or you also teach middle school, two games go deeper into the chemical process:
- **Plantipot Photosynthesis (grades 6–8, 10 min, 4.5 ⭐) — students collect carbon dioxide, water, and sunlight, then dive into a chloroplast to see photosynthesis in action. Aligned to NGSS Photosynthesis (MS-LS1.C-1)**.
- **Plants Vs. CO₂** (grades 6–8, 20 min, 4.6 ⭐) — a tower-defense-style game where students use photosynthesis to restore balance to Earth’s atmosphere.
How to assign a photosynthesis game to your class (free)
- Create a free teacher account at legendsoflearning.com.
- Search for “photosynthesis” or browse by your standard (NGSS/CCSS/state).
- Add the game to a playlist and assign it to your class — students play in class or at home, and you see their progress.
FAQ
Are these photosynthesis games really free for teachers?
Yes — teachers can create a free account and assign these games to their class.
What standard does a 5th grade photosynthesis game cover?
On Legends of Learning, photosynthesis games are aligned to NGSS learning objectives such as Transfer of Light Energy (grades 3–5) and Photosynthesis (grades 6–8), so you can match the game to your exact standard.
Do the games work on iPad / Chromebook?
Yes, the games run in the browser and many support iPad and text-to-speech.
How long does each game take?
Most photosynthesis games run 10–25 minutes, so they fit in a single class period.
