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VODA - WATER Pokusy - Experiments

Project Comenius Science and Discoveries in Europe Základná škola J. Lipského s MŠ Trenčianske Stankovce-Slovakia 2010-2011. VODA - WATER Pokusy - Experiments. Pokus č . 2 Experiment № 2. Pláva, nepláva ? Does it floa t , does´t it floa t ?. Pomôcky: We need:. nádoby na vodu

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VODA - WATER Pokusy - Experiments

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  1. Project ComeniusScience and Discoveries in EuropeZákladná škola J. Lipského s MŠ Trenčianske Stankovce-Slovakia2010-2011

  2. VODA - WATERPokusy- Experiments

  3. Pokus č. 2Experiment № 2 • Pláva, nepláva? • Does it float, does´t it float?

  4. Pomôcky:We need: nádoby na vodu a bowl of water, plastic tubes with water rôzne predmety z rôznych materiálov – dreva, kovu, plastu, gumy... things made of a variety of different materials - wood, metal, plastic, rubber....

  5. PostupInstructions 1. Uvažuj a rozdeľ predmety podľa toho, či zostanú na hladine, alebo sa ponoria. 1 Make predictions -classify objects according to whether they sink or float.

  6. Pomaly ponor jednu vec do nádoby s vodou a zisti, čo sa stane. Vyber vec z vody a pokračuj v pokusoch s ostatnými vecami. Slowly lower one item into the water. Remove the item from the water and continue testing each item. 2. Otestujte si svoje predpoklady2 Test your predictions

  7. Veci, ktoré zostali na hladine Things that float • plastová časť pera • plastic part of a pen • korok • cork • olej • oil

  8. kúsok polystyrénu • a piece of polystyrene • kúsok dreva • a piece of wood

  9. Žiaci porovnali váhu predmetov - ľahké veci plávajú na hladine, váha však nie je jediný faktor.Pupils compared the weight of the objects – light objects float, but the weight is not the only factor.

  10. Veci, ktoré sa ponoriaThings that sink • železné skrutky • irons screws • kameň • stone • minca • coin

  11. Ťažšie ale nie väčšie veci sa ponorili.Heavier but not bigger objects sank.

  12. Pokusy s kinder vajíčkamiExperiments with the plastic eggs –“kinder eggs“ • prázdne... • empty... ...pláva ...floats

  13. naplnené vodou... • full of water... ... klesne, nie však na dno ...sinks, but not to the bottom

  14. naplnené kameňmi a skrutkami • full of stones or metal... ...klesne na dno ...sinks to the bottom

  15. Experiment - video

  16. Pokusy s loďkami Experiments with boats • malá prázdna plastová hračka lode pláva v umývadle • a small empty plastic toy boat floats in water • pridávaj na ňu kamene a kov, loďka klesá hlbšie a hlbšie • add small stones or some metal on the boat and it sinks deeper and deeper

  17. Podobný pokus s plastovou loďkouSimilar experiment with the plastic boat Put a small empty plastic boat in water, it floats. Then add things to the boat and it sinks deeper and deeper the more things you add. Ponor prázdnu loďku do vody, pláva. Postupne pridávaj veci, čím sa zvyšuje jej váha a ona sa ponára hlbšie.

  18. Ak pridáte viac vecí, loďka sa ponorí tak, že voda sa dostane až hore a loďka sa potopí. If you add enough things, the boat will sink deep enough so that water reaches the top and then it sinks.

  19. Experiment - video

  20. Tento projekt bol zrealizovaný vďaka finančnej podpore Európskej komisie

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