• Do you want to become a counting master?

    Note! The test is in Finnish.


    Heureka's free online test lets you test your counting skills. Between the questions, you'll also get handy quick calculation tips that will help you raise your mathematical agility to acrobatic level.
Go to test
  • Mies silmät kiinni ja sormet ohimoillaan miettii. Hänen ympärillään on numeroita.

    Counting exercises the hippocampus

    Do you often resort to a calculator when performing daily calculations? However, it is worth practicing counting regularly as it has many benefits.

    Counting exercises your hippocampus, the memory and learning center of your brain. At the same time, it increases the number of neurons in your brain and creates faster connections.

    Test your current counting skills
  • Teksti "Heurekan nettitestit" ja alla lomakevastausrivi A, B ja C, josta valkoinen nuoli on valinnut B-vaihtoehdon.

    Heureka's fun online tests

    Do you have an absolute ear for music? Would you be a reliable eyewitness? Or would you like to find out if you would make an astronaut?

    Heureka's fun and free online tests will teach you new things about yourself and give you insights into various scientific fields. The tests are suitable for all ages! All tests are only in Finnish.

    In addition to online tests, you can also find fun science videos, science experiments to do at home, and tasks related to astronomy and space in the link below. This way, we make sure that science and the joy of discovery continue at home too!

    Discover Heureka's online tests

Check out Heureka's science experiences that you can take part of anywhere

  • Heurekan nettitestit

    Heureka's online tests

    Heureka's online tests are fun tests with science in them, where you learn new things about yourself and the world around you. Each test has its own theme, and along the way you get science trivia related to the topic. Note! The tests are in Finnish.

  • Heureka-hetket

    Heureka moments

    Heureka moments are videos in which hilarious, funny and startling scientific tricks are performed. They remind us of the ultimate essence of doing science – playful experimentation and the joy of insight. You can test many of the tricks yourself. Note! The videos are in Finnish.

  • Heurekan epäonnenpyörä

    Heureka's wheel of misfortune

    Welcome to Heureka's laboratory, a quiet place of creative destruction. This program series focuses on destroying things in the name of science.

  • Tiedepaja: vesi

    Science Workshop: water

    On this page you will find 6 water-themed science experiments that you can do with supplies you can find at home! The science experiments are suitable for the whole family. On the page you will find instructions and scientific explanations for the phenomena that occur in the experiments.