How Do Seesaws Go Up and Down? by Jennifer Shand

https://thebookvoice.com/podcasts/2/audible/115314 to listen full audiobooks. Title: How Do Seesaws Go Up and Down? Author: Jennifer Shand Narrator: full cast Format: mp3 Length: 14 mins Release date: 03-22-21 Ratings: Not rated yet Genres: Physics Publisher's Summary: Have you ever wondered how seesaws go up and down or how screws stay secure in walls? Beginning concepts of mechanical engineering, including levers, wedges, inclined planes, and more, are explored in this newest engaging addition to the How Do series.