Thunder's+Science+Page

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=**Hypothesis:**= =**Water is made of tiny particles called molecules which are constantly in motion. If the water is heated the particles move faster and push each other apart more - this makes water expand. If water is cooled then the particles slow down move closer, so water shrinks!**=

=**Method:**= =**1. Fill up three similar bottles with water right up to the top. Leave one on the bench, have the second in a container of ice and the third in boiling or very hot water. Observe the bottles carefully - what happens?**= =**Materials:**= =**1.Three plastic bottles the same size and shape**= =**2. Ice**= =**3. Water**= =**4. 2 plastic ice-cream container**= =**5. Plastic soft-drink bottle**=

=**Results:**= =**We found that nothing happened with the bottle on its own. The bottle in the hot water had condensed water on the outside and was expanding. The bottle in the ice seemed to have shrunk and gone very cold.**= = = =**Conclusion:**= =**We think that the bottle in the hot water went hard because the water inside it expanded and pushed the water into the bottle, so therefore the bottle went hard**= = = = =

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=Method:= =1. Put 2 Ice cubes with sugar on 1 plate and place the place in the sun.= =**2. Do the same but place the plate in a shady spot.**= =**3. Observe and record every 5 minutes.**=

=**Things I Could Change Or Vary:**= =**The Ice Size. The Plate Size.**=

=Thing(s) I Could Measure:= =Temperature. Plate Length.=

=Results:= =The Ice in the shade seemed to have melted faster than I thought, with it melting in just 15 minutes. The one in the sun melted in 10 minutes but was obvious that that was going to happen.=