Surely in American films about schoolchildren, you saw how children prepare a model of a volcano from plasticine for a project competition. Detergent and soda are placed inside, and it is worth adding vinegar to the mouth, as an "eruption" occurs. Why not try out a trick based on other laws and demonstrating the action of an underwater volcano?
It is necessary
- - glass jar with a threaded tin lid;
- - potassium permanganate or powder dye;
- - paraffin;
- - matches.
Instructions
Step 1
Pour some food coloring into the threaded tin lid. If the experiment is conducted under adult supervision, potassium permanganate crystals can be used.
Step 2
Fill the powder completely with wax or paraffin. To do this, light a candle and, carefully tilting it, let the molten liquid drain.
Step 3
Pour clean water into the jar and screw the lid back on.
Step 4
Turn the jar over and place it on a support so that a burning tablet candle fits under the lid.
Step 5
Be patient and wait for the "lava" to break through the softened paraffin. With dyes, you will see the process in slow motion, potassium permanganate will allow you to estimate the rate of release of "lava" into the water.
