Physics & AstronomyAges 9–11
Build a Simple Spectroscope
Use everyday materials to split light into a spectrum and investigate how scientists learn about stars.
SCIENCE • DISCOVERY • TEACHING
Where curiosity meets great teaching.
Curiosity starts here. Great teaching takes it further.
Science resources, classroom ideas, astronomy, books, and practical tools for educators and young learners.
Hands-on learning
View all projects →Science projects worth doing
Look up
Astronomy & telescopes
Go from your first view of the Moon to understanding eyepieces, magnification, planets, constellations, and the physics behind what you see.
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TelescopesUnderstanding Telescope MagnificationLearn how focal length, eyepieces, aperture, and atmospheric seeing determine useful magnification.MoonWhy the Moon Changes ShapeThe Moon does not make its own light. Its changing appearance is geometry we …TelescopesYour First Night With a TelescopeA practical first observing session: setup, focus, the Moon, and what to try next.
Teacher Resources
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Mapping the Solar System
Earth & Space Science · Grades 4–6
Books & ideas
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