Mon Prof Augmenté
Soap’s Two Ends
Open to everyone until Tuesday, September 29
To keep it, print it while it is open.
A soap molecule has a round head that likes water and a wavy tail that likes grease. When soap meets water and grease, the heads stay in the water while the tails push into the grease.
In the picture
- Round soap head: the end that is attracted to water
- Wavy soap tail: the end that is attracted to grease
- Water area: the blue liquid where the heads gather
- Grease droplet: the yellow blob where the tails gather
Examples
- Washing greasy dishes with soap.
- Scrubbing oily hands with soap and water.
Key takeaways
- Soap molecules have one water-loving end and one grease-loving end.
- The two ends let soap connect water and grease so they can be washed away.
Carry on in the app
Three questions on this lesson, to check the idea stuck. Free in the app while the lesson is in the free week.
At least one new illustrated lesson every weekday for your child’s year, with its quiz and a reminder at 6:15 pm.
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