© cse and ase 2011 this page may have been changed from the original reasoner student sheets beta...
TRANSCRIPT
© CSE and ASE 2011 This page may have been changed from the original
reasonerSTUDENT SHEETS
beta version
© CSE and ASE 2011
2
SS1 Science of UV light Reusable – 1 per pair
SS2 Program outline Consumable – 1 per student
SS3 Reasoner lifeline Reusable – 1 per pair
SS4 Evidence Reusable – 1 per group of 3
Sheet number Title Notes
Contents
© CSE and ASE 2011
SS1science of uv light Ultraviolet (UV) light is
electromagnetic radiation. You may get a tan when your skin absorbs UV radiation. Too much gives you sunburn.
UV damages your DNA. This can build up over many years and lead to skin cancer. UV also has health benefits. It triggers your body to make vitamin D.
The sun’s rays contain 3 types of UV:
The ozone layer blocks 97-99% of UV radiation from the sun from reaching the Earth’s surface.
Which objects give off UV light?
Can UV be harmful?
How are sunbeds linked to skin cancer?
●UVC is mostly filtered out by the Earth’s atmosphere.
●UVB is what makes your skin burn and is the main cause of skin cancer.
●UVA makes up most of sunlight and makes skin age. It can also cause skin cancer.
Sunbeds give off UVA and UVB rays like the sun
© CSE and ASE 2011
Programme outline
SS2
Introduction: Abigail will explain the science of UV light.
Check evidence: She will describe the evidence which supports our claim, and the evidence that doesn’t.
Researcher: ............................................... Claim: Sunbeds increase your risk of getting skin cancer.
1 2 3 4
Summarise: She will explain how well the evidence supports our claim.
Next steps: Abigail will suggest further tests. Or if the claim is wrong, she will suggest one that fits better.
supports / opposes / neutral supports / opposes / neutral supports / opposes / neutral supports / opposes / neutral
© CSE and ASE 2011
SS3Reasoner LIFELINE
NO support
Is there any evidence to support
the claim*?
Explain HOW WELL the evidence supports the claim* overall. Explain why the
evidence opposes the claim* or is irrelevant.
Suggest a test to make the claim stronger. Describe the results you expect if the claim* is correct.
Does each piece of evidence
support the claim*?CHECK EVIDENCE
SUMMARISE
Say the claim* could be wrong. Suggest a claim that fits the evidence better.
A LITTLE support
YesA LOT of support
Yes
No No
More than 1 piece of evidence 1 piece of evidence
NEXT STEPS
* or hypothesis
© CSE and ASE 2011
Evidence 1
Increase in natural UV radiation 1980-1997
Increase in yearly UV dose
11-13%
8-10%
5-7%
0-4%
Evidence 2 * Irradiance is a measurement of how strong radiation is.
Evidence 3 SS4
year
trip
s abro
ad f
rom
the U
K (
thousa
nds)
Evidence 4
technical notes
Technical note
● we ‘embedded’ two fonts to make the design work (it’s why the file is big)
Titles should look like this Body text should look like this
● if they don’t appear correctly, you can download and install the fonts in 2 minutes:
Download title font (dirt2stickler) from www.dafont.com/dirt2-stickler.font
Download text font (Am. typewriter) from
www.jabroo.com/index/search/q/american+typewriter Note: Click ‘Register’
at top, complete the form and you’ll be taken to the download page
Picture Slide Credit
© Centre for Science Education & Association for Science Education 2011. The license for this material includes downloading and using it within the institution. For any other usage, permission must be obtained from upd8. Contact [email protected] upd8 is not responsible for any revision that may be made to the material after it has been downloaded.
Gemma Young, Writer
Tony Sherborne, Executive editor
Picture credits
8
Credits
88