Getting around Amsterdam is best done on (rental) bicycle or by public transport. Using a car is discouraged, but Science Park Amsterdam has parking space available.
The GVB provides metro, tram, and bus services in Amsterdam; bus 40 has a stop closest to the venue.
Planning your trip is easiest with https://9292.nl/en which combines all options.
All public transport requires the use of the the OV-chipkaart, for which there are several options. If you buy a reusable card (€7.50) you can load it with credit or maybe get a multi-day pass (bus, tram or metro only).
There are many hotels in Amsterdam in a wide range of prices. We cannot endorse any particular hotel, but there are several in the Amsterdam Amstel station area conveniently close such as Meininger, Hotel V and Casa.