Corrosion of iron metal wire in different NaCl concentrations. The tube "R" contains tap water. Corrosion of the metal strips is strongest in the 5 - 10 % solution. Decrease of corrosion at high concentrations occurs because oxygen solubility in water drops.

#STEM
#Corrosion
#Chemistry
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Photoelectric effect. Using zink and UV-light.

#physics
#highschool
#science

Boiling water using ice.

#Physics
#HighSchoolPhysics
#STEM
#BoilingWithIce
#ScienceDemo
#Thermodynamics

Strange cubic geometry of sodium chloride crystals!

#science
#chemistry
#NaCl
#Salt

Explain this!

#Science
#STEM
#Physics
#PhysicsExperiment
#PhysicsTeacher

Penneistä jännitettä. Voltage from old Finnish copper and aluminum pennies.

#Electrochemistry
#DIYScience
#PhysicsDemo
#HighSchoolPhysics
#STEMEducation
#CoinBattery
#ScienceExperiment
#TeachingPhysics

print("Hello, World!")