Cool Science Experiments for kids
Perfect for older kids doing the salt water clock science experiment.It’s a Cool Science Experiments for kids.
The zinc is more active than cooper,so the zinc is easy to lose electron and come to the positive pole. The cooper come to the negative pole.The salt water is act as the role of electrolyte. The electrolyte is a material that can conduct electricity.
The salt water will be activated when mixed acetic acid. When the cooper and zinc bar both put into the salt and acetic acid liquid,there will exit a electric voltage and the electricity will go from cooper bar to 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 contain 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.