Researcher’s notebook
5th year of Primary Education
HIGHER
SUN PROTECTION SCHOOL PROGRAM
LEVEL
The impact of radiation
Activate what you know.
Can you match the words in the first column to those in the second?
Day Rotation
Sun Skin
Chlorophyll
North
Melanin
Sunscreen
Phototype
Latitude
Solar radiation
Dermis, epidermis, hypodermis
Tan
South Photosynthesis
Orbit
Altitude
Sunblock
Skin tone
Night
Hypothesis.
Why does the impact of the sun’s rays on the surface of the Earth affect the temperature of the Earth? Is it because the oblique rays heat less? Why?
We already know that the sun does not hit the entire surface of the Earth in the same way and that the temperature is therefore different. However, we need to know why the sun’s impact and temperature are related.
2 HIGHER LEVEL / 5TH YEAR OF PE Researcher’s notebook WORKSHEET 1
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The impact of radiation
3 Steps.
We can carry out a simple experiment in order to answer these questions. You will need:
- A torch
- A sheet of paper
- A pencil
1 Hold the flashlight about 30 cm from the sheet. Shine it on the sheet vertically and draw the outline of the light. Then tilt the torch without changing its distance from the sheet and draw the outline as well. 30
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The impact of radiation
3 Steps.
2 Write down the results. Draw the two outlines here:
3 Answer the questions: Are the surfaces the same?
Where do you think the sun’s rays heat up the surface the most: in the drawing where the light shines on the sheet vertically or the drawing where the light shines on the sheet obliquely?
Where do you think the sun’s rays heat up the surface the most, the North Pole or on the equator?
Do you think that the impact of the sun’s rays, the surface and the temperature are related to each other?
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The impact of radiation
4 Conclusions.
When shining , the sun’s rays heat a surface and so this surface reaches a temperature.
5 HIGHER LEVEL / 5TH YEAR OF PE Researcher’s notebook WORKSHEET
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