Whistleblower masterclass

Whistle blowing is a vanishing art. We are bringing it back! The right sound, which lasts and calls every dog home and every sheep to the fold. Put your team to the test, because this one takes all your wits.
  • The aim of the game is to use the tools provided to build a whistle that whistles for as long as possible without any team member touching it. This competitive game will test even the most skilled whistling experts.

  • Number of participants: up to 25 people
    For larger groups, games can be run in parallel.
  • Set-up and clean-up: 15 min + 15 min
  • Game length: 1 hour
  • Required outside of AHHAA: a room with tables for 5 teams and a competition area; electricity available if possible.
  • Price: €240+tax

Workshops

Workshops

Aha, Germs!

Try your hand as a real microbiologist! Each participant can test the surfaces of their choice to make sure that the area is clean or find out that the area has an exciting life of microorganisms.
45-60 min Age 5+

Workshops

Caffeine Crystals

Extract caffeine from caffeine pills, create marvellous crystals and observe them under the microscope.
45 minutes Age 12+

Workshops

Chocolate Laboratory

Get to know the colourful history of the world's most beloved sweet and make your own delicious chocolate. And then, of course, eat it!
45 minutes Age 5+

Workshops

Eye Surgery

Find out how our eyes really work and who has the largest eyes in the world. In the end of the workshop, you can grab a scalpel and get a unique glance inside a real eye.
45 minutes Age 10+
New!

Workshops

Ice Cream Laboratory

In this workshop you'll learn all about ice cream - and make some on your own! You'll also find out some cool historical facts about this tasty treat.

This workshop is not suitable for children under the age of 9!
45-60 minutes Age 9+

Workshops

Nuts and bolts explained

We all know the stories of the bolt and the nut, but how do they actually work and what's the difference?
In this workshop, we'll make a fun keyring for the youngest ones using different fasteners.
30-45 min Age 4+

Workshops

Photo Printing

We're going back to a time when there was no iPhone and pictures didn't come from a printer. Let's manually print images using old-fashioned techniques. We'll also talk about the fascinating history of photography in general and the process of photo printing. Everyone will be able to take home a blue-and-white image created with chemicals as a gift.
45 min Age 9+

Workshops

Rocket Launching

What makes rockets fly? What should a good rocket look like?
In this workshop, we will learn how to get a rocket airborne with simple effort and what exactly you need to do it. We'll design our own rocket and fly it VERY high!
45 min Age 7+

Workshops

Soap Laboratory

Why do we need soap to get bubbles and how did people make soap in the past? You'll soon find out, and make your own soap - wonderfully bubbly and well-scented.
45-60 min Age 5+

Workshops

Soda Factory

Explore the history of this fascinating bubbling drink, and make some of your own as well! You'll also find out where soda comes from and how bubbles get in soft drinks.
45 minutes Age 4+

Workshops

Synthesis of Smell

What do household chemistry and sweets have in common?
Let's find out which chemicals make both great cleaning products and sweet smells. In the workshop, we'll create our own fragrances.
45-60 min Age 14+

Workshops

Vegetable Chemistry

What gives vegetables their colour? How can you extract these colours from the fruit?
45 min Age 9+

Something is definitely going on, but more detailed information will be available a week before the selected date.

These events are not in the program on the selected date.

Planetarium

Planetarium

FAMILY: Dinosaurs: a story of survival

Like almost all children, Celeste is fascinated with dinosaurs. She is preparing a talk for her class about how they went extinct when Moon, a very wise and magical character, poses a tantalizing question: what if I told you that there are still dinosaurs among us?

Planetarium

LIVE: Journey Through the Universe

Let us take you on a ride to the depths of the Universe and its edge (that we are currently aware of)!
25 min Age 5+

Access to planetarium from age 5

Planetarium

MOVIE: Dark Universe

The planets, stars, and everything you can see are less than 5 percent of the universe. What is the other 95 percent? Dark Universe examines the invisible dark matter underlying galaxies that, together with dark energy, accounts for that other 95 percent of the universe’s total energy and mass. Narrated by astrophysicist Neil deGrasse Tyson.
25 min Age 14 +
New!

Planetarium

MOVIE: Satelix

Satellites are with us all day. When we wake up, go to school, to work or for a trip, and when we spend time with our families in the evening, too. And at night? In the darkness of the night, they guard us while we sleep. Without them, we would not have navigation in our cars or mobile phones, accurate weather forecasts, and in fact many everyday items, either.
25 min Age 12 +

Access to planetarium from age 5

Planetarium

MOVIE: The Race to Space

“The Race to Space” is an immersive fulldome film that takes the viewer on a journey through the early years of humanity’s history of spaceflight.
30 min Age 14 +

Access to planetarium from age 5

Something is definitely going on, but more detailed information will be available a week before the selected date.

These events are not in the program on the selected date.

Science Theatre

New!

Science Theatre

Aha, Blast Off!

What's a rocket and what kind of fuel does it use? Don't worry, it doesn't take a rocket scientist to understand! Let's fly through the history and explore the fascinating science behind space travel. Ad astra!
30-45 minutes

Science Theatre

Aha, High Voltage!

Let's take a closer look at the power that moves the whole modern world! We'll talk about static electricity, the direct current that flows in our household appliances and the dangerous and awe-inspiring alternating current. We'll see how electricity changes us and the world we live in, and what all of this has to do with magnets.
30-45 minutes Age 10+

Science Theatre

Aha, Saves the Day!

In this rescue-themed show we use fire and explosions to show you what happens if you disobey safety rules. And you'll realize why people say things such as "Dont leave a candle unattended", "Never use water to put out burning oil" or "Don't throw flour around the kitchen".
30-45 minutes

Science Theatre

Aha, Sounds Great!

We're constantly surrounded by different sounds and noises (and we make some of them ourselves as well) But what is a sound wave and can we make an invisible wave visible? Come and find out! As a bonus, we'll make fire dance.
30-45 minutes Age 10+

Science Theatre

Amazing Air

Let's find out what is that substance we breathe in and how amazingly powerful it can be. Did you know that right now, there's more than 100 kg of air weighing down on your shoulders? Leaves you completely breathless, doesn't it?
30-45 minutes

Science Theatre

Chemistry of Fire

What is burning and what do you need to make something burn? Which materials burn and which ones don't? Come and see the rain of fire, liquid oxygen, a bunch of awesome flames and - most importantly - explosions! It'll be a burning sensation!
30-45 minutes Age 10+

Science Theatre

Colourful Chemistry

What is a chemical reaction? How can we change it? What or who is a  catalyst?  It's alright, we'll make these words fun and easy - and explain everything through vivid experiments, most notably multi-coloured flames.
30-45 minutes Age 10+

Science Theatre

Disgusting Digestion

When you eat a cake, do you ever wonder what happens to it next? In this science show, we'll learn about the human digestive track and how it works - and see the final result of all this hard work!
30-45 minutes

Science Theatre

Extraordinary Egg

For an average human, egg is a fragile, but tasty food. But it can be so much more! This extraordinary show introduces you to the fine art of egg-walking and demonstrates what happens when you put eggs in a microwave. And we'll save an egg princess falling from a great height!
30-45 minutes

Science Theatre

Let There Be Light!

In this optic-themed show we demonstrate how powerful light makes things explode and how sunscreen protects you from UV rays. You'll also learn what light is "made of" and how colours are formed.
30-45 minutes Age 10+

Science Theatre

Striking Experiments

In this show you will see our most spectacular and beloved experiments. For example, you will see mystical colour reactions, puffs of smoke, fireworks and different explosions. Of course all this will beheld in the spirit of AHHAA - fun and educational!
15-45 minutes

Science Theatre

Wondrous Water

Let's look at where water comes from, what are its three wondrous states and its physical and chemical properties. Though water is the central topic of this show, our experiments are far from watered down: we'll set fire to both the host of the show and water itself! 
30-45 minutes Age 5+

Something is definitely going on, but more detailed information will be available a week before the selected date.

These events are not in the program on the selected date.

Exhibitions

PERMANENT EXHIBITION

Hall of Nature

Watch the everyday life of wood ants and chicken, check out the tropical fish, create fascinating patterns with the water printer and spin the fog swirls

PERMANENT EXHIBITION

Hall of Technology

Ride the bicycle high above the hall, take a photo of yourself with an exploding balloon and see what's inside the washing machine and other home appliances

PERMANENT EXHIBITION

Lobby

In addition to exhbition halls, you'll find lots of fun exhibits in AHHAA's lobby as well! Find your way through the mirror maze, solve various puzzles and check your reflection in the distorting mirrors.

TEMPORARY EXHIBITION Until 31. December 2025

University of Tartu Medical Collections

Get a glimpse of one of the most extraordinary collections in the whole world! Come and see the medical collections of the Uni. Tartu Faculty of Medicine, with exhibits dating back as far as 1803.

Something is definitely going on, but more detailed information will be available a week before the selected date.

These events are not in the program on the selected date.

3D Tic-Tac-Toe

Everyone has played this game on a piece of paper, but taking on your opponent is completely different in 3D!

144 €/day

Air Cannon

Step behind the cannon, aim and shoot. What? Air! With the resulting jet of air, you can, for example, mess up a friend's hairstyle or extinguish a candle flame.

288 €/day

Backwards Scooter

It takes quite a bit of practice to learn how to ride a bicycle. You might think it would be easier to ride a scooter instead.

144 €/day

Balance Tester

How good is your balance? Step on the balance tester and find out!

144 €/day

Balloon Picture

Take a fun picture of yourself while popping a balloon and get your friends in on the game!

115 €/day

CGI

Many fantastical-looking movie scenes are actually a result of masterful computer graphics. See for yourself!

144 €/day

Distorted Mirror

A fun and effective design element for various events.

144 €/day

Drunk Glasses

Put the glasses on and see how the world in front of you swayes and distorts. You can try walking on a straight line or writing something. It won’t be that easy!

144 €/day

Ear Changer

Put on this funny-looking hat, close your eyes and ask your friend to call you to them. Only... are they on your right or left side...?

144 €/day

Grip Strength

Test the strength of your grip! Grasp the handle and squeeze it as hard as you can!

144 €/day

Gyroscope

Try a flight simulator! Strap yourself in and have a wonderfully dizzy experience!

115 €/day

Head in the Box

Consisting of 6 mirrors, this exhibit creates different patterns thanks to its multiple reflections. 

144 €/day

Letter Puzzles

Even though we learn to write in early childhood, this exhibit will prove tricky for even the best of writers. 

144 €/day

Memory Tester

Test your memory and reaction speed!

144 €/day

Motion capture

Try out real cinema equipment which is used to create digital characters for movies.

144 €/day

Nail Art

Handmarks, facemarks, different shapes - let your creativity flow and press patterns into the nail wall! When there’s no more space for art just move to the other side and start again!

288 €/day

Nail Chair

A chair for those who enjoy sharp encounters! Try touching the nails with your hands and then take a seat. Can you feel the difference?

144 €/day

Plasma Ball

Put your hand on the sphere (or close to it) and you can change the course of these electrical charges.

144 €/day

Rheoscopic Disc

Rheoscopic fluid is placed in a thin cylinder. When you spin the cylinder, the light that reflects from the fluid shows the formation of numerous whirls and spirals. 

144 €/day

RoboBattle mini arenas

When you don’t have time to build a robot yourself, you can try AHHAA’s RoboBattle on a smaller scale.  Control robot bugs and try to defeat your enemy!

115 €/day

Robot Oskar

Is he a real thinking robot? Well, maybe not, but he will leave no-one cold.

115 €/day

Sea Ball Pit

Learn about water safety in Estonia’s largest sea rescue simulator.

1800 €/day

Spacecraft "Cosmos 2083“

Wow, you can rent a real Soviet reconnaissance satellite!

Speed Tester

Experiment with your peripheral vision and reaction speed at the same time!

432 €/day

Tesla's Generator (large)

Let’s create music from electricity! Tesla’s generator transforms the frequency and voltage of electricity to a very high level. 

115 €/day

The Giant Duck Pii

An eye-catching attraction, a selfie magnet or just a nice addition. AHHAA's yellow giant duck makes every party unforgettable!

432 €/day

Wave Machine

Waves can move in water, in the air, and in the ground. We’re probably most familiar with the waves in water, as this is where they’re the most visible.

144 €/day

Something is definitely going on, but more detailed information will be available a week before the selected date.

These events are not in the program on the selected date.

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