Science

1. CLASS: Integrated Science Form 5
TOPIC OF LESSON: Evaporation & Drying
SECTION: B - The Home and Workplace

2. OBJECTIVES
SYLLABUS OBJECTIVE(S) [OBJETIVO DE SYLLABUS]
Candidate should be able to:
Explain the cooling effects of evaporation;
El candidato debe ser capaz de:
Explica los efectos refrescantes de la evaporación;

3. OBJECTIVES
LESSON OBJECTIVE(S) [OBJETIVOS DE LA LECCIÓN]
By the end of this lesson, the student should be able to:
● Describe the effects of wind, temperature and humidity of the area on
evaporation and drying of materials
Al final de esta lección, el estudiante debe ser capaz de:
● Describir los efectos del viento, la temperatura y la humedad del área sobre la
evaporación y el secado de materiales

4. GLOSSARY [Will fit better in platform]
ENGLISH SPANISH
clothes ropa
clothes dryer secadora de ropa
conditions condiciones
damp húmedo
enclosed adjunto
faster Más rápido
flashcards tarjetas
ideal ideal
material material
moisture humedad
patio patio
rate tarifa
removed from retirado de
replicate reproducir exactamente
several varios

5. KeyWords
Look out for the Key Words. They are new words that will be in the
Glossary above.
They will be highlighted like this:
Key Word

6. INTRODUCTION
This is a picture of damptowels on
a towel rack.
On Week 1, the rack of damp towels
was placed in an enclosed, cool
room.
On Week 2, the rack of damp towels
was placed on the patio, on a sunny,
windyday.
On which week do you think the
towels dried faster?
Suggest why in your notebook.

8. EXPLANATION
DRYING: The process by which moisture is removed from a material or substance. (Chung,
2017)
The rate of drying depends on several conditions.
Click the link below to see what these conditions are. It is a collection of flashcards.
https://h5p.org/node/549768
Copy the answers on each flashcard into your notebook.

9. A CLOTHES DRYER
A clothes dryer replicates
these ideal conditions by maintaining
high temperatures, and low humidity,
while constantly moving the clothes
around.
Some clothes dryers even blow hot air
over the clothes.
That is why a clothes dryer works so
fast!

10. SUMMARY
● Drying is the process by which moisture is removed from a material or substance
● This moisture is removed via evaporation.
● The rate of drying depends on conditions that will either speed up or slow down
evaporation.
● The main factors affecting the rate of drying are: temperature, air movement, humidity and
weather.
● Hot temperatures, windy conditions and low humidity are ideal for the drying of clothes.
● A sunny day is best for drying clothes.
● A clothes dryer replicates these ideal conditions by maintaining high temperatures, and low
humidity, while constantly moving the clothes around. Some clothes dryers even blow hot
air over the clothes. That is how a clothes dryer works so fast!

11. Now Let’s See if You Understand...
Click on the link below and try out the quiz…
https://h5p.org/node/549799

12. REFERENCES
Chris Gannon, ANIMATION JAVASCRIPT GIF BY CHRIS GANNON, viewed on 20th June 2019,
<https://giphy.com/gifs/hot-cold-liquid-4ZgLPakqTajjVFOVqw>
NA, OpenClipart-Vectors / 27427 images, viewed on 9th July 2019, <https://pixabay.com/vectors/wind-
blowing-cloud-air-cartoon-1295105/>
NA, Public Domain, viewed on 9th July 2019, <https://pxhere.com/en/photo/742889>
NA, Public Domain, viewed on 9th July 2019, <https://www.maxpixel.net/Clouds-Landscape-Sunny-Grass-
Hills-Greenery-Sky-150382>
NA, Cat vs Washing Machine, viewed on 9th July 2019,
<https://media3.giphy.com/media/a1kftfCMBOa0o/giphy-downsized-
medium.gif?cid=e1bb72ff5d24bb4c4d4a355255aa254e&rid=giphy-downsized-medium.gif>
Tania Chung, 2017, Integrated Science for CSEC Examinations, Macmillan Education, London, viewed on 8th July
2019