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Water Family Day
Buy tickets 3€ cheaper in advanceWelcome to an event for the whole family on Saturday, April 11th from 10 am to 6 pm, where you can dive into the secrets of water. In the workshops, you can experiment yourself, and learn new things about water, which is vital to us. Heureka's exhibitions are open as usual during the event.
Note! Photography will be taken place at the event.
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Tickets
Tickets in advance from the online store:
- €23 (adults 18+)
- €16 (5–17-year-olds & discount groups)
Tickets on site:
- €26 (adults 18+)
- €19 (5–17-year-olds & discount groups)
Children under 5 years old with a paying guardian can visit Heureka for free.
Museum cards, Kaiku cards, Heureka Club annual cards and Heureka free tickets are also valid for admission.
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What happens at a family event?
Family Days are an excellent time to a visit to Heureka: with the same ticket you get to see Heureka's exhibitions and planetarium films as well as participate in the day's special program. The special program includes various workshops, which you can learn more about by scrolling down this page.
Note! There can be changes to the program.
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Microscopically examine microplastics
Put on your lab coat and come and learn about microplastics through a microscope! At the same time, you will learn about the significant sources of microplastic emissions.
10 am–6 pm. Location to be confirmed later. -
Miniature stream workshop
In the miniature stream workshop we'll build a miniature world with a real stream flowing through it. The workshop talks about environmental construction and how beauty is one of the most important characteristics of a landscape.
10 am–6 pm. Location to be confirmed later. -
Hidden water quiz
Which takes more water to produce, wheat bread or rye bread? What about grapes or mangoes? Why should you choose potatoes over rice?
In the hidden water quiz, you will learn about the concept of water footprint and guess
the amount of water used in the production.
10 am–6 pm. At the Event Square. -
On the journey of water
How does water change shape on its way from glacier to sea, from sea to clouds, and
from clouds to rain? And does more water come from somewhere, or is the amount of water always the same on Earth?
The presentation introduces the water cycle on Earth and the different forms of water.
The schedule will be confirmed later. Science on a Sphere. -
Through the eyes of a satellite: water phenomena
You get to explore how different water phenomena are seen from space and how satellite observations can help understand environmental changes. The web-based Copernicus Browser is used to examine, for example, the algae situation in the Baltic Sea, glaciers and desert irrigation areas.
10 am–6 pm. Our Journey in Space exhibition. -
Did you know this about wastewater treatment? (in Finnish!)
Wastewater treatment, like most critical infrastructure, is located and operates hidden from view, mostly underground. The talk will explain how wastewater travels from residents to the treatment plant, how the treatment takes place, and where the treated wastewater ends up.
The speech is made possible by HSY.
The schedule will be confirmed later. On the stage at the Event Square.
amazing science theater
Tarkkana! (in Finnish)
Welcome to Heureka's inspiring science theater! Tarkkana! science theater performance challenges the audience to wonder whether the performer's incredible claims can be true.
The schedule will be confirmed later. On the stage at the event square.
HEUREKA'S BELOVED DOMESTIC RATS
We feed the rats! (in Finnish)
In the rat feeding show, the rat inspirer serves the rats fresh treats such as lettuce, cucumber, carrots and grains. While the rats munch on the vegetables, the inspirer talks about the rats' behavior, feeding and everyday life at Heureka's Rottala. After the show, the audience has the opportunity to chat with the rat entertainer and ask questions about the rats.
The schedule will be confirmed later. In Rottala.
Meet guide dog Rudi
Learn about visual impairment and guide dog activities
Come and ask about visual impairment and guide dogs from experienced expert Tiina Borgman (FM). You also get to meed guide dog Rudi!
Note! If Rudi has a harness, please do not pet or talk to him, because then he is working. When he is not in a harness, you can pet and talk to him.
The age limit for the planetarium is 5 years.
Planetarium films on the program during the day
The renovated planetarium will also be showing films on the day of the event. There are three different films on the schedule, which you can learn more about in the cards below.
Tip! Heureka has set an age recommendation for each film, which can help you in choosing the film best suited for you. However, age recommendations are not restrictions - everyone over the age of 5 is warmly welcome to every film!
Note! On the day of the event, seats for the film are reserved by scanning the QR code located on the information screen in front of the planetarium.
Planetarium films
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Asteroid Quest
Best suited for ages 10+
In the planetarium film Asteroid Quest, you will learn about asteroids, their secrets, and how scientists are learning to deflect asteroids to prevent catastrophic collisions.
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The Stellars - Mission: Green
Especially recommended for elementary school aged children
The Stellars - Mission: Green planetarium film combines space adventure, humor and a message of environmental protection.
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Recombination
Recommended for adults
Welcome on a meditative journey where art comes to life. This film is for you if you want to experience a captivating art experience.
Heureka's exhibitions are open throughout the event
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Giants of the Ice Age
8.2.2025–30.8.2026
Nearly twenty life-size animal robots await visitors at the Giants of the Ice Age exhibition - including a mammoth and a saber-toothed cat!
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Our Journey in Space
10.2.2024-6.1.2027
Our Journey in Space is an interactive science center exhibition for the whole family
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Water – The stream of Life
Exhibition is on display for the time being
Water – The Stream of Life. The exhibition is suitable for people of all ages and backgrounds, to children and to adults, as well as the curious and those who like to delve deeper.
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Play and Explore
The exhibition is on display for the time being
The exhibition consists of sites from the Power of Play exhibition and the Idea Workshop. Play is natural and essential for human well-being. Playing is about exploring and experimenting, getting to know ourselves and each other. Through play, we learn to explore the world, and we should maintain this skill...
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Exhibitions Outdoors
Opens 10.5.2026
At Science Park Galilei you can try out large-scale objects based on music, mathematics and physics phenomena. Opens 10.5.2026.
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Artificial Intelligence – Me, Myself & AI
Exhibition is on display until further notice
Welcome to the world of artificial intelligence! The mini-exhibition brings together the best parts of the previous exhibition at Heureka. Come and try out the artificial intelligence-based devices and games that the main character of the exhibition, the Scientist, had made for his home.
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Heureka Classics
Renews during spring 2026
Heureka classics will move to a new space in spring 2026. The exhibition will open with a renewed look in stages during the spring.
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Electri City
Open until 6.4.2026
Delve into smart electricity in your everyday life! What is a smart home like and how can you yourself use electricity intelligently?
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Science on a Sphere
The Science on a Ball site presents data collected by satellites about climate and space, among other things.
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Main Exhibition Area
In the main exhibition area, a few old favorites are on display, such as the wire wheel and Foucault's pendulum.
The Science Restaurant serves delicious food
When you get hungry, head to the Science Restaurant ! A hearty lunch and tasty dishes from the Science Snack Menu are available. Smaller snacks are also available.
Lunch 11 am–3 pm.
Science Snack Menu from 11 am–4.30 pm.
Heureka Shop has the best gifts
At Heureka Shop you will find the smartest souvenirs, gifts for all ages or science memorabilia for yourself.
Open on the day of the event from 11 am to 6 pm.