FIRST LEGO League on X: "Happy #HYDRODYNAMICS Day! Find the Challenge on our website starting at noon ET! https://t.co/XOnSFz4DDx https://t.co/SAlEIzH2MW" / X
![On your marks, get set, flow! The FIRST® LEGO® League Hydro Dynamics Challenge is on! – RAISING ROBOTS – AUTHORISED LEGO® EDUCATION PARTNER On your marks, get set, flow! The FIRST® LEGO® League Hydro Dynamics Challenge is on! – RAISING ROBOTS – AUTHORISED LEGO® EDUCATION PARTNER](https://raisingrobots.com/wp-content/uploads/2017/07/FLL-logo-Color.png)
On your marks, get set, flow! The FIRST® LEGO® League Hydro Dynamics Challenge is on! – RAISING ROBOTS – AUTHORISED LEGO® EDUCATION PARTNER
![LEGO Set 45804-1 HYDRO DYNAMICS Challenge Kit (2017 FIRST LEGO League) | Rebrickable - Build with LEGO LEGO Set 45804-1 HYDRO DYNAMICS Challenge Kit (2017 FIRST LEGO League) | Rebrickable - Build with LEGO](https://cdn.rebrickable.com/media/thumbs/sets/45804-1/9774.jpg/1000x800p.jpg)