Salt Water Clock ; Cool Science Experiments
Perfect for older kids doing the salt water clock science experiment. It’s a Cool Science Experiment for kids.
Experimental principle of salt water clock:
The zinc is more active than cooper, so the zinc is easy to lose electrons and come to the positive pole. The cooper comes to the negative pole. Saltwater is acting as the role of electrolyte. The electrolyte is a material that can conduct electricity.
The saltwater will be activated when mixed with acetic acid. When the copper and zinc bar are both put into the salt and acetic acid liquid, there will exit an electric voltage and the electricity will go from the copper bar to the zinc bar. So the clock can be in operation.
1 measuring cup
2 cup lid
4 cooper bar
5 zinc bar
6 bottom board
7 clock holder
Warning: It must be accompanied by a parent while assembling.
- The acetic acid is food grade and can’t eat.
- The salt is not contained in the product. The cooking salt can be used in this experiment.
- The salt and acetic acid are both put into the left cap and the right cap liquid is pure water
- If the clock can’t work, please dip the cooper and zinc bar into the left cap for a few minutes.