• 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.
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  • 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
  • The two inspirers of Heureka stand facing the camera in the Heureka laboratory.

    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