Safety Hits for Kids (SH4K)
Vienna, March 2009
Hands in Science



                                            Josef Trna

                                       Faculty of Education

                                     Masaryk University, Brno

                                          Czech Republic







Hand

     Hand (in lat. manus) a piece of human body, used for interaction with environment and
manipulation with objects.

A. Indication of substances qualities

1. Softness and coarseness

2. Hardness

3. Solidness and elasticity

4. Heat-carrying capacity

5. Material identification



B. Quantities value guessing

6.  Length guessing

7.  Temperature guessing

8.  Weight guessing 1

9.  Weight guessing 2

10. Density guessing

C. Quantities measurement

11. Units of length and its measurement

12. Area measurement

13. Volume measurement

yard

yard (yd) is originally the British length unity:

n   yd = 91,44 cm

n   yd = 3 ft

n   yd = 36 in

n   yd = 1/1760 mile







                                                         (1068-1135)

      Yard was defined as the distance between nose and thumb of English king Henry I. (1101).

D. Phenomena demonstration

14. Friction

15. Pressure and pressure force

16. Gravity

17. Water jet

18. Sound source

19. Sound reflection

20. Sound absorption

21. Heat generated by friction

22. Thermal radiation

23. Vaporization

24. Electrification by friction

25. Conductivity of hand skin

26. Slit diffraction

E. Interdisciplinary science phenomena

27. Heartbeat

28. Reaction speed

29. Laterality 1

30. Laterality 2

31. Laterality 3

32. Decimal system

33. Fingerprints

F. Magic, tricks, illusions and paradoxes

34. Extinguishing of candlelight by fingers

35. Two temperature water

36. Broken finger

                                         Hands-on Science

n1st International Conference on Hands-on Science HSCI'2004, Univ. of Ljubljana, Slovenia, 5-8 July
2004



n2nd International Conference on Hands-on Science HSCI'2005, Univ. of Crete, Rethymno, Greece,
13-16 July 2005



n3rd International Conference on Hands-on Science HSCI'2006, Univ. of Braga, Portugal, 4 - 9 Sept
2006



n4th International Conference on Hands-on Science HSCI'2007, Univ. of Azoras, Ponta Delgada,
Portugal, 23 - 27 July 2007



n5th International Conference on Hands- on Science HSCI'2008, Univ. of Recife, Olinda-Recife,
Brazil, 13 – 17 October 2008



Thank you for your attention!





Josef Trna



trna@ped.muni.cz