Air pockets surrounding metal balls cut drag up to 90%. Learn more: Read the paper (free): http://scim.ag/2xbi1DZ
Air pockets surrounding metal balls cut drag up to 90%. Learn more: Read the paper (free): http://scim.ag/2xbi1DZ
Categories: Gr 4-6 Science & Tech, Gr 7-8 Science & Tech, Gr 9-10 Science
https://youtu.be/avs_bVpesSU It’s estimated that over 175 million Americans will participate in Halloween activities this year spending nearly $9 billion on all that fun. Every year our 9NEWS... read more
Categories: Gr 9-10 Science
Concept attainment exercises often use verbal or written forms of thought. The attached student exercise uses visual imagery to teach the concepts of Elements, Compounds and Mixtures at the atomic... read more
Categories: Gr. 11-12 Chemistry, Gr. 11-12 Physics
https://youtu.be/J3xLuZNKhlY An atom is mostly empty space, but empty space is mostly not empty. The reason it looks empty is because electrons and photons don't interact with the stuff that is... read more
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