This very simple to perform demo can be made very memorable by ensuring the students see it as a discrepant event. Students are expecting to see a free fall but instead see a low terminal velocity with no obvious source of friction.
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Teacher Demo/Student Activity: Glow Sticks
Categories: Lab/Student Activity, Teacher Demonstration
In this demonstration, students observe what happens to activated glow sticks when they are submerged in water at three different temperatures: cold, room temperature, and hot. Students will use... read more
Teacher Demo/Student Activity: There's Iron in your Cereal?
Categories: Lab/Student Activity, Teacher Demonstration
This demo shows how flakes of iron can be extracted from iron-fortified cereals with the use of a strong magnet. The demo shows a physical separation process and provides students with a good example... read more
Teacher Demo: Hot Ice
Categories: Teacher Demonstration
Heat transfers in physical and chemical reactions have many practical applications. Exothermic reactions release heat to the surroundings, resulting in an increase in surrounding temperature.... read more