Hand Washing Effectiveness
Germ Theory Demonstration
Compare different hand washing methods to see their effectiveness at removing germs. Observe how washing duration and soap use affect germ removal.
No Washing
0 seconds
Water Only (5 sec)
5 seconds
Soap & Water (20 sec)
20 seconds
Time: 0s
Germs Remaining
100%
Germs Remaining
100%
Germs Remaining
100%
Observation:
The experiment will show how different hand washing techniques affect germ removal. Watch how germs disappear with proper washing.
Germ Theory Principles
1. Soap Mechanism:
Soap molecules have hydrophobic tails that break apart germ membranes and hydrophilic heads that wash them away.
2. Washing Duration:
20 seconds allows time for soap to break down germs and mechanical action to remove them.
3. Water Alone:
Water can remove some germs but is much less effective without soap's chemical action.
