You have a big brain right? Make your brain even bigger with science projects from KiwiCo! Get 20% off anything in their shop if you use my link: https://www.KiwiCo.com/WilliamOsman or use code WILLIAM at checkout.
Inside FatBoy 800:    • Inside FatBoy 8000  

Thanks to: @iDubbbzTV and @TheAlexErnstShow

Patreon:   / williamosman  
Instagram:   / crabsandscience  
Twitter:   / crabsandscience