Explain why sunlight can harm eyes and choose sensible ways to reduce exposure.
You are choosing protection.
Use evidence, not lens colour.
No one looks at the Sun.
Success looks like
Explain that sunlight can damage eyes.
Choose suitable UV-filtering sunglasses, a brimmed hat and shade.
Keep the rule: never look directly at the Sun.
Retrieval
BUILD · SCIENCE · Lesson 6 of 10
Three light clues
1. Does the Sun give out light?
2. Can water reflect sunlight?
3. Is staring at the Sun a safe test?
I do
BUILD · SCIENCE · Lesson 6 of 10
Some sunlight is invisible
Visible light lets us see.
UV is invisible to our eyes.
Sunlight can damage eyes.
Sunlight includes more than we can seeDiagram description
The diagram separates visible light and invisible ultraviolet in sunlight. The bands are categories, not proportions or a complete spectrum.
I do
BUILD · SCIENCE · Lesson 6 of 10
I read the protection evidence
Lens darkness is not enough.
I check reliable UV information.
I also plan shade and a hat.
UV protection is a property of the lensDiagram description
Incoming UV is strongly reduced by a suitable UV-filtering lens. Some visible light passes through. The schematic is not a measured transmission graph.
I do
BUILD · SCIENCE · Lesson 6 of 10
Reflection matters as well
Sunlight can reflect from surfaces.
Combine ways to reduce exposure.
Sunlight can arrive from another directionDiagram description
A schematic ray from the Sun reflects from water towards a person. This illustrates why reflected sunlight also matters for protection, without an instruction to look into the Sun or reflection.
Reliable check confirms suitable UV protection and fit
C
Wide-brimmed hat
D
Shaded area available
W1. Which plan is supported by the evidence?
Choose B with a hat and shade. A’s darkness alone is not enough.
Build the protection brief
This is an indoor planning challenge. Never look directly at the Sun or test lenses by Sun viewing.
Decision 1 of 3
Glasses A are dark, but UV protection is unconfirmed. Is darkness enough evidence?
UV protection is a property of the lens
The paper cards give verified UV and fit evidence for B, not A. An adult checks real eyewear through a reliable source.
Decision 2 of 3
The group is beside water. Does reflected sunlight matter?
Sunlight can arrive from another direction
Use suitable UV-filtering sunglasses with a wide-brimmed hat and shade; do not stare into bright reflections.
Decision 3 of 3
The group has suitable ordinary sunglasses. Can they watch the Sun directly?
Sunlight includes more than we can see
Sunlight includes radiation we cannot see. Protection reduces ordinary exposure; it does not make direct Sun viewing safe.
All decisions checked. Explain one choice using the evidence, then save your work.
Choose, test, then explain together. Evidence diagrams appear only after your test. Diagram transitions explain the model; they do not represent real elapsed time. Use Pause model to stop transitions and model controls, or your device’s reduced-motion setting. The printed We do activity provides the paper route.
We do
BUILD · SCIENCE · Lesson 6 of 10
Repair the risky message
Message: “Wear sunglasses, then watch the Sun.”
Stop. Rewrite the message.
Keep protection and the no-looking rule.
W2. What must our message always say?
Never look directly at the Sun. Suitable sunglasses reduce ordinary exposure; they do not make Sun viewing safe.
Hinge
BUILD · SCIENCE · Lesson 6 of 10
Which is the safest science claim?
Choose the accurate account.
You do
BUILD · SCIENCE · Lesson 6 of 10
Choose your investigation route
Choose a protection plan.
Write a pupil safety brief.
Make a decision with missing evidence.
You do
BUILD · SCIENCE · Lesson 6 of 10
Use the evidence
Read or point to one clue.
Record what it supports.
Keep your explanation short.
Continue within this stage’s shared time.
You do
BUILD · SCIENCE · Lesson 6 of 10
Make your own science record
Complete your chosen route.
Use a diagram, words or speech.
Check one answer with the evidence.
You do
BUILD · SCIENCE · Lesson 6 of 10
Check and improve
Does my answer match the evidence?
Have I explained why?
Improve one label or sentence.
Continue within this stage’s shared time.
Review
BUILD · SCIENCE · Lesson 6 of 10
Lundy loop: improve our account
Choose how to share one idea.
Listen to another explanation.
Use evidence to improve our account.
Which sentence must stay in every plan?
Never look directly at the Sun, even when wearing ordinary sunglasses.
Exit
BUILD · SCIENCE · Lesson 6 of 10
Three quick checks
E1. Why do we protect our eyes from sunlight?
E2. Name two ways to reduce exposure.
E3. Do ordinary sunglasses make Sun viewing safe?
See the teacher answer guide for the three checks.
Slide 1
BUILD SCIENCE · Sunlight: make a safer plan
Evidence: kit and scenario cards
Constructed planning cases. Do not test any item by looking at the Sun.
A • Dark lenses
The glasses are dark. Their UV protection has not been confirmed.
B • Checked glasses
A reliable check confirms suitable UV protection and a good fit for the wearer.
C • Brimmed hat
A wide brim provides extra shade around the face and eyes.
D • Shaded area
A suitable shaded place is available for the break.
E • Beside water
Bright sunlight can reflect from the water. The group is planning an outdoor break.
F • Missing protection
Only unverified dark glasses are available. A supervised indoor option is available.
W1. Choose a kit from A–D. Explain one choice.
W2. Correct: “Sunglasses make Sun watching safe.”
BUILD SCIENCE · Sunlight: make a safer plan
Route 1 • Choose and explain
Word bank: UV / shade / hat / never.
S1. Which glasses have useful protection evidence?
☐ A
☐ B
S2. Choose two extra ways to reduce exposure from cards C and D.
S3. Can we see UV with our eyes?
☐ Yes
☐ No
S4. Complete the rule: __ look directly at the Sun.
S5. Why is lens darkness alone not enough information?
BUILD SCIENCE · Sunlight: make a safer plan
Route 2 • Write a useful safety brief
Use scenario E beside water. Write for another pupil.
T1. Explain two ways sunlight could reach the group.
T2. Choose glasses A or B and explain the evidence.
T3. Add two practical parts to the protection plan.
T4. Write the rule about looking at the Sun.
T5. Explain why the plan reduces exposure but does not make every action safe.
BUILD SCIENCE · Sunlight: make a safer plan
Route 3 • Make a decision under uncertainty
Use scenario F. Do not guess that dark glasses have UV protection.
X1. What information is missing?
X2. Choose a sensible immediate plan using the available options.
X3. How could an adult check suitable eyewear for a future outdoor break?
X4. Explain why “it does not feel bright” is not a reliable UV test.
BUILD SCIENCE · Sunlight: make a safer plan
Exit and reflection
Point, draw, write or tell an adult.
E1. Why do we protect our eyes from sunlight?
E2. Name two ways to reduce exposure.
E3. Do ordinary sunglasses make Sun viewing safe?
R1. Which idea did you improve after hearing evidence?