Have you ever imagined touching a tornado or even being able to change it? Did you know that not all shadows are black and white?
How many different colours can you make with your shadow?

Make a gigantic soap bubble with just one small blow and, before it bursts, see its sparkling colours.

We can also make "that" friend disappear, leaving only his smile….

All of this and much, much more is possible in the Explora room.

Originally designed by physicist Frank Oppenheimer in 1969, the San Francisco Exploratorium focuses its attention on Nature, with human perception as the leading theme. Physics, humour and art coexist in creating interactive educational exhibits.

Visitors are free to explore and experiment in this area, which is designed to be a forest of natural phenomena. These everyday phenomena may often seem complex, but here they are dealt with in a fun, simple, familiar manner, from general and scientific viewpoints.

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Watch, experiment and touch, alone or with others, repeat and draw your own conclusion are just some of the things you can do with our collection of 66 interactive Exhibits from two European science centres.
Experiment with your own physical strength to produce the energy necessary to launch a Hydrogen Rocket, carefully observe water electrolysis - separating the oxygen from the hydrogen - and then the countdown to the rocket launch.
This Exhibit is part of a set from Techniquest, a science centre in Wales.

You can also lie down on a bed of nails and understand, like the fakirs, that it doesn't hurt because your weight is spread over thousands of nail tips. The Fakir's Bed is one of the Exhibits from the Finnish science centre, Heureka.

These are just two of the many exhibits where you can see, do and learn at the Pavilion of Knowledge - Ciência Viva exhibition room.

The house was left unfinished. The job had to be done. A special brigade was called for. Under the orders of the Construction Boss, the team gets down to work and in around 45 minutes the house is ready.

The crane operators deliver the materials and the apprentice bricklayers build the walls with foam bricks and panels. The scaffolding makes it easier to build the walls, and wheelbarrows, buckets and pulleys make the team's work easier.

This is a very special construction site. Adults are not allowed in. The project was designed for children from 3 to 6 years of age to play freely. The different construction tools are adapted to their size and were designed to provide total safety for those working with them.

As soon as they arrive, children put on their work vest and the safety helmet. Once this is done, they cross the safety barrier and are informed of the safety conditions, the missions and the tasks to be fulfilled. Each one carries out his/her own role.

The Unfinished House from the Cité des Sciences et Industries awaits you.

Mathematics is alive and well and present in almost all our daily activities, even if we don't often notice. Besides being useful, it is truly indispensable and can even be great fun.

This interactive exhibition shows us more than sixty different ways to learn Maths through play or learn to play with Maths.