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Ages 7–12 · Grades 2–7 · 10 levels

Verdant Trail

Play level 1

A biology trail through the living world, drawn from real scientific illustrations: the parts of a plant and of a flower, animal groups, life cycles and the water cycle, what is inside a cell, and how the human heart and eye are built.

  • Parts of a plant
  • Animal groups
  • Life cycles
Verdant Trail cover art

Levels

01 · Inside the PlantPlay
02 · Sort the AnimalsLocked

A free account unlocks levels 3–4

Create a free account
03 · Life Cycles in OrderFree account
04 · The Water CycleFree account

A subscription unlocks levels 5–10

Try every level free for 30 days
05 · Inside a FlowerSubscription
06 · Parts of a CellSubscription
07 · Plant Cell or Both?Subscription
08 · The Human HeartSubscription
09 · The Eye: FrontSubscription
10 · The Eye: InsideSubscription

How to play

  1. Pick an unlocked level on the trail above.
  2. Answer each question before the timer runs out — speed and streaks earn bonus points.
  3. Score 60% or higher to unlock the next level.
  4. Levels 1⁠–⁠2 are free with no account. A free account also unlocks levels 3⁠–⁠4.
  5. A small monthly subscription unlocks every remaining level.

Questions and answers

What does Verdant Trail teach?

Ten levels: the parts of a plant and of a flower, sorting animals into mammals, birds and fish, the life cycles of a butterfly and a plant, the water cycle, the parts of animal and plant cells, which parts only plant cells have, the human heart, and the outside and inside of the eye.

What age is it for?

Ages 7 to 12. The first levels cover plants, animal groups and life cycles; cells, the heart and the inside of the eye come at the end.

Are the pictures real scientific diagrams?

Yes. The heart, eye and animal cell come from Servier Medical Art, and the plant cell, wild strawberry (1788) and apple blossom (1908) are public-domain illustrations. The credits are at the bottom of this page.

How do the diagram levels work?

First you explore the picture: tap each marked part to read its name and what it does. Then the timed quiz asks you to find each part on the same picture.

Image credits: Servier Medical Art (smart.servier.com), CC BY 4.0: heart, eye, animal cell · Mariana Ruiz (LadyofHats), Wikimedia Commons, public domain: plant cell · William Curtis, The Botanical Magazine (1788), public domain: wild strawberry · Arthur Harry Church, Types of Floral Mechanism (1908), public domain: apple blossom · CC BY 4.0