Lava Lamps

To culminate our work on Light and Reversible and Irreversible Reactions we made lava lamps in Science.  First we looked at how a real lava lamp worked.  We then created our own lava lamps by causing a chemical reaction in water and oil using an Alka Seltzer tablet.  We identified variables we could change which may have an effect on the speed of the reaction.  We then worked in groups to change one variable at a time to observe the affect that this had.  We chose to vary the size of the bottle, the temperature of the water and the amount of Alka Seltzer tablet that we used.

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