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Topic
science
7 passages across every level. Free to read, with comprehension quizzes.
The Amazing Raindrop Journey
L1 · SproutEasy
5 min read·5 Qs
The Bees That Dance
L2 · ExplorerHard
2 min read·5 Qs
The Blueprint of Life: Unraveling the Mysteries of DNA
L4 · ScholarMedium
5 min read·10 Qs
The Melted Candy Bar That Led to the Microwave Oven
L2 · ExplorerEasy
2 min read·5 Qs
The Sticky Idea: How Velcro Was Invented by a Walk in the Woods
L2 · ExplorerMedium
2 min read·5 Qs
Understanding Vaccines: Training Your Immune System Against Disease
L3 · VoyagerHard
4 min read·10 Qs
Your Immune System: A Tiny Army Protecting Your Body
L2 · ExplorerEasy
2 min read·5 Qs