For families & teachers
Little questions. Big discoveries.
Simple space guides for curious children and the grown-ups exploring with them. Read together, make a prediction, then try it in Nina’s universe.
Day and night for kids: interactive activity & free worksheet
Explore day and night with a turning Earth, a free printable worksheet and a 10-minute lesson. Suggested ages 5–8 with adult support. No account needed.
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Moon phases for kids: interactive model & free worksheet
Move the Moon around Earth and explore its phases. Includes a free printable worksheet and a 10-minute lesson for ages 5–8 with adult support. No login.
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Solar system for kids: planet activity & free worksheet
Meet the eight planets with an interactive activity, free printable worksheet and a 10-minute lesson. Suggested ages 5–8 with adult support. No login.
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What happens during an eclipse?
Help children tell solar and lunar eclipses apart by lining up the Sun, Earth and Moon in a playful shadow experiment.
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Why do shadows move?
Discover how shadows form with a little flashlight, a paper ball and a simple prediction game for children.
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Why do the seasons change?
Explain Earth’s seasons to children by exploring its tilt, changing sunlight and opposite seasons in the two hemispheres.
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Why can Nina jump higher on the Moon?
Introduce gravity to children by comparing the same jump on Earth, the Moon and Mars in Nina’s space playground.
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Why is a year different on each planet?
Explore planetary orbits with children and discover why one trip around the Sun takes a different time on each world.
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What is inside Earth?
Take a child-friendly look inside Earth and explore the crust, mantle, outer core and inner core with a layered planet model.
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