Is Earth Actually Getting Heavier? (The Answer Shocked Me)

Every year, humans pour over 30 billion tons of concrete and build skyscrapers, roads, and entire cities. So does all of that construction actually make Earth heavier? In this video, we break down the physics of conservation of mass — from a 17th-century scientist's famous willow tree experiment, to Lavoisier's sealed-jar experiments, to why your car doesn't get lighter when you burn gas the way you'd expect. We also cover the two things that ACTUALLY do change Earth's mass every year: rockets leaving the atmosphere, and space dust falling in. TIMESTAMPS 0:00 - Does building make Earth heavier? 0:45 - The skyscraper mass question 2:30 - Van Helmont's willow tree experiment 4:15 - Where a tree's mass actually comes from 6:00 - Lavoisier and conservation of mass 8:00 - The one thing that DOES change Earth's weight Got a science question you want answered? Drop it in the comments. #science #physics #education #earth #chemistry