STEM Challenges

Explore fun and educational challenges across math, science, engineering, and coding!

Showing 6 of 209 challenges

Page 23 of 35
Red Giants and Stellar Swelling
Space Explorer
Science

When a star like our Sun runs out of hydrogen in its core, it does not simply die — it transforms dramatically, swelling to hundreds of times its orig...

50 XP 5-10 min 0 attempts
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Life on the Main Sequence
Space Explorer
Science

A star spends the great majority of its life quietly fusing hydrogen in its core. But how long that life lasts, and how brilliantly the star shines, d...

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Star Clusters
Space Explorer
Science

Stars are social — they are born in groups from the same molecular cloud. Explore the two main types of star clusters, their very different ages and p...

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From Protostars to Stars
Space Explorer
Science

A star does not just switch on — it has to earn its glow over millions of years of contraction, heating, and eventually igniting nuclear fusion. Follo...

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Nebulae
Space Explorer
Science

Nebulae are some of the most beautiful objects in the universe — glowing clouds of gas and dust that can mark the birthplaces or the graveyards of sta...

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Giant Molecular Clouds and the Interstellar Medium
Space Explorer
Science

The space between stars is not empty — it is filled with a mix of gas and dust that becomes the raw material for new stars. Explore the interstellar m...

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