The 2030 Energy Frontier: Green Hydrogen vs. Lithium Economics
Students compare green hydrogen and lithium-ion technologies using economic data, storage density, infrastructure needs, and scalability.
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Science · 8–10
Helmet Engineering Challenge: Football Concussion Science
Students explore force, impulse, energy transfer, and the evolution of football helmet technology before designing and testing an egg helmet.
$5USD · Digital download
Students explore force, impulse, energy transfer, and the evolution of football helmet technology before designing and testing an egg helmet. Guided annotations, reflection prompts, and engineering design concepts support discussion of impact protection.
4 pagesof ready-to-use material · PDF
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What you’ll teach
Clear goals. Useful learning.
- Students will explain how increasing impact time can reduce collision force.
- Students will describe how helmets absorb and distribute kinetic energy.
- Students will identify major changes in football helmet technology.
- Students will design and test a model helmet using engineering principles.
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