Science Experiment on Surface Tension

Cathy McAuley, a sixth-grade science teacher, introduces a Zoom activity where the Secretary of Education from Virginia joins her class for a science experiment. The experiment involves testing water, vinegar, and olive oil on a penny to observe surface tension and cohesion. Students discuss the cohesive properties and polarity of water. The session concludes with students expressing excitement and Mr. Qarni sharing his thoughts.

Who joined the class for the special Zoom activity?

• The Principal of Woodbridge Middle School

• The Secretary of Education from Virginia

• A local news reporter

• A famous scientist

What was the main objective of the science experiment?

• To determine the boiling point of liquids

• To measure the weight of different liquids

• To observe the color change in liquids

• To test the surface tension and cohesion of liquids on a penny

How many drops of water stayed on the penny before spilling?

• 45

• 58

• 39

• 28

Which liquid had the least number of drops before spilling over?

• Milk

• Olive oil

• Vinegar

• Water

What property of water was discussed in relation to surface tension?

• Its density

• Its color

• Its polar nature

• Its temperature

What does it mean when water is described as polar?

• It changes color

• It evaporates quickly

• It attracts other water molecules

• It repels other water molecules

How did the students feel about Mr. Qarni joining the experiment?

• Confused

• Excited

• Indifferent

• Disappointed

What did Mr. Qarni plan to do with his son?

• Watch a movie

• Do the same science experiment

• Read a book

• Go for a walk

What was emphasized as a benefit of the experiment?

• It requires expensive equipment

• It can be done with household items

• It is very time-consuming

• It is only for advanced students

What was the teacher's final message to the students?

• You need to redo the experiment

• You need to study more

• You guys did it, you're smart!

• You should try harder next time