Researcher’s notebook
4th year of Primary Education
HIGHER
SUN PROTECTION SCHOOL PROGRAM
LEVEL
Skin has a memory
1
Activate what you know. Answer these questions:
1 - Altitude is:
a) The distance from a point to the equator
b) The vertical distance from a point to sea level
c) The distance from a point to the North Pole
2 - The Earth’s orbit causes:
a) Days and nights
b) Seasons of the year
c) Climates
3 - If the sun is shining on the entire Earth:
a) We should use sunscreen every day of the year
b) We should take into account different circumstances such as beach, snow, sand, winter, summer, noon, sunset, etc.
c) Both options above are correct
4 - The sun:
a) Heats the whole Earth equally
b) Heats the earth’s surface differently
c) The previous two are false
5 - The skin is made up of:
a) The dermis
b) The dermis and epidermis
c) The dermis, epidermis and hypodermis
2 HIGHER LEVEL / 4TH YEAR OF PE Researcher’s notebook WORKSHEET
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Skin has a memory
2
Hypothesis.
Memory is a function of the brain. Do you think any other organ in the body has a memory?
Steps.
Activity 1:
In order to answer the question we are going to do a short experiment.
What you need:
- Plasticine
- A sponge or foam rubber
Take the plasticine and sponge and press your fingers on to each of the two surfaces, what happens?
Choose the right answer:
1 – The sponge recovers its shape, but the plasticine does not as the fingers are imprinted on the surface.
2 - The plasticine recovers its shape, but the sponge does not as the fingers are imprinted on the surface.
3 - Both recover their shape.
Basically, the plasticine does not recover its shape, as the fingers remain imprinted. However, the sponge recovers its original shape.
Your skin cells are like plasticine. The skin is the largest organ in the human body and it also has a memory: the traces left behind by the sun’s UVA and UVB rays are not erased over time, but build up throughout our lives.
3 HIGHER LEVEL / 4TH YEAR OF PE Researcher’s notebook WORKSHEET 1
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Skin has a memory
3 Steps.
Activity 2:
As you have learnt in the video “Sun, skin and sun protection”, there are six skin types, also called phototypes.
Take a good look at the table of phototypes and think about which one relates to you. Following your teacher’s instructions, get into six groups in the classroom.
Write down in the table below how many pupils belong to each type and, with an arrow, match each phototype to the characteristics shown in the right-hand column
PHOTOTYPE 1 Number of pupils with this phototype in the class
PHOTOTYPE 2 Number of pupils
Pigmented skin, with dark skin and darkcoloured eyes
Pale white skin, with brown eyes and brown hair
PHOTOTYPE 3 Number of pupils
Fair skin, blue eyes and blonde hair
PHOTOTYPE 4 Number of pupils
Pale white skin with freckles; red hair and light-coloured eyes
PHOTOTYPE 5 Number of pupils
Deeply pigmented skin, black
PHOTOTYPE 6 Number of pupils
Brown skin, South American or Indian
4 HIGHER LEVEL / 4TH YEAR OF PE Researcher’s notebook
WORKSHEET 1
Skin has a memory
4 Conclusions.
I have hair, eyes and skin. So I most likely belong to phototype . Before doing any outdoor activity, I should protect myself from the sun with sunscreen that has a minimum Sun Protection Factor (SPF) of 50.
Also, I must never forget to take , , and drink a lot of .
5 HIGHER LEVEL / 4TH YEAR OF PE Researcher’s notebook WORKSHEET
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