We have built over 100 different science museum exhibits, mostly for the Cambridge Science Centre. These have included electrical generators, ball runs, stick insect cages, logic blocks and dissected household items.

We think that 95% of the time a small exhibit can teach and fascinate your visitors just as much as a large exhibit. Plus they have the advantage of being much cheaper, and you can get 2-3 times as many in the same space, allowing your visitors to explore more science, and making it more likely they will find something that inspires them.

Rods made of different materials with the same ring magnet being dropped around them. The better the conductivity of the rod, the slower the magnet drops.
The classic blower which makes a ball float stably in the air almost as if by magic.
A version of our gear wall exhibit that works as a tabletop exhibit so it can fit in different places.
Complete circuits using your body and see the currents flowing through the exhibit.
The boom-whacker or pipes of pan exhibit is an old favorite. Tune a series of pipes to different notes and the musical visitor hits the tubes to play a tune. We have added a tune guide to make it easier to use.
Interrupt a laser beam and you can produce clicks, pull a piece of mesh or patterned fabric across it, and you can make notes, play tunes, or even produce speech.
Image of sea ice exhibit
We've all heard lots about the loss of polar sea ice over time. This exhibit allows gallery visitors to see it for themselves. With the ability to select the month and the year, changes in sea ice extent can be displayed on a projector or screen, showing how the ice changes month by month, or for a particular month over back to 1850. Depressing, but important.
A box that looks bigger on the inside than the out, and apparently has two tunnels crossing one another. Two different types of infinity mirror in one exhibit.
Build your own machine with gears, pulleys, cams, and other mechanical devices.
The Cartesian diver is a classic demo, which involves both pressure and buoyancy.