Aim! To explore Thermometers and how they can be made with
household items.
Slide 4
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
Slide 5
Method 1. Pour a teaspoon of food dye into your water bottle
2.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. 3.Now pour
the water that was in the kettle into your empty bowl and place
your bottle into this bowl and watch the dye. 4.Carefully remove
the bottle from the hot water and place it in the ice once again
keep a close eye on the dye
Slide 6
What Happens! When placed in the hot water the dye rises! When
placed in the ice the water level goes back down.
Slide 7
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.