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How to make a thermometer!

How to make a thermometer! . By Catie. Aim!. To explore Thermometers and how they can be made with household items. . Apparatus . Ice in a bowl Kettle with hot water in it Bowl M odelling clay Clear straw 1 Plastic drink Bottle filled with cold water Food dye . Method.

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How to make a thermometer!

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  1. How to make a thermometer! By Catie

  2. Aim! To explore Thermometers and how they can be made with household items.

  3. Apparatus • Ice in a bowl • Kettle with hot water in it • Bowl • Modelling clay • Clear straw • 1 Plastic drink Bottle filled with cold water • Food dye

  4. Method • Pour a teaspoon of food dye into your water bottle • Now place the straw into the middle of your bottle of water and secure it with the modelling clay, making sure there aren't any holes where the water in the bottle could spill out of. • Now pour the water that was in the kettle into your empty bowl and place your bottle into this bowl and watch the dye. • Carefully remove the bottle from the hot water and place it in the ice once again keep a close eye on the dye

  5. What Happens! When placed in the hot water the dye rises! When placed in the ice the water level goes back down.

  6. Conclusion When placed in hot water the molecules inside the water in the water bounce around gaining speed and occupying more room to the rest of the dye are forced upwards. Then when placed into the ice the molecules have less energy and therefore take up less room causing the water to go back down the straw again.

  7. … This experiment didn’t work for me when I tried it

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