Science and Technology K–6 · Year 5

Which beak for which food? Tongs, tweezers and spoons as bird beaks

Science understanding: Biological sciences

PracticalLow risk

The idea

A bird's beak shape suits the food in its habitat, and modelling beaks with tools shows how a structural feature decides what an animal can eat and where it can survive.

What you need

beak models: tweezers (a finch's fine beak for small seeds), kitchen tongs (a heron's), a teaspoon (a duck's), a clothes peg (a cockatoo's strong seed-gripping beak), a pipette (a honeyeater's slender nectar-feeding beak)
foods: uncooked rice (small seeds), sunflower seeds, gummy worms in a tray of water (fish), 20 mL of coloured water in a narrow vase (nectar), rubber bands (worms)
a paper cup per learner as the stomach
timer
recording table

How to do it

Each learner takes one beak. In 30 seconds, pick up as many rice grains as you can with the beak, one at a time into the cup. Count them.
Repeat for each food with the same beak. Record counts; for the nectar, record the millilitres moved into the cup instead.
Swap beaks until every learner has tried every beak on every food.
Collate the class table of mean count for each beak and food.
For each food, name the beak that did best; for each beak, name the food it could barely get.
Match each model beak to a real Australian bird and its habitat, and explain what happens to a bird if its habitat's food disappears.

What you should see

No single beak does best on every food. Tweezers and the peg pick up rice and sunflower seeds one at a time; the tongs catch the gummy 'fish' and rubber-band 'worms'; only the pipette draws the 'nectar' out of the narrow vase; the spoon scoops but struggles with the one-at-a-time rule. Some beaks score zero on some foods. The class table is the evidence that no beak suits every food, which is why different birds occupy different habitats.

What changes

What you change: beak model
What you measure: items collected in 30 seconds
What you keep the same: time
food amount and layout
one item at a time

Common misconceptions

Each of these ideas is wrong, and the activity is a chance to test it.

A bird chooses its beak shape to match its food.
One kind of beak is best.
Birds can change beak shape if food runs out (individuals cannot; populations change over generations).

Safety card

Low riskLearners carry it out

Hazards

food allergens
small items
latex allergy (rubber bands are natural rubber latex)

Controls

no eating
clear the floor of dropped food
check allergy records; use silicone or other latex-free bands if a learner has a latex allergy

Note

Risk assessment before the lesson using Primary RiskAssess or the school's own template.

Curriculum references

The NSW syllabus outcomes and Australian Curriculum v9 codes this activity supports. They are references, not a verified or complete curriculum alignment.

Science and Technology K-6 Syllabus (2017), current, taught until 2026; code read from the syllabus document on 22 September 2026ST3-4LW-S ST3-1WS-S
Science and Technology K-6 Syllabus (2024), implemented from 2027; NESA's timeline is 2026 plan and prepare and 2027 start teaching, and schools may choose to implement it during 2026; Stage 3 content: 'Observe behavioural and structural adaptations of plants and animals, and suggest how these may help them survive in their environments', which sits in the focus area whose knowledge outcome is this one; code read from the outcomes page and the content read from the Stage 3 content page on 23 September 2026ST3-SCI-01
Science and Technology K-6 Syllabus (2024), implemented from 2027; NESA's timeline is 2026 plan and prepare and 2027 start teaching, and schools may choose to implement it during 2026; code read from the outcomes page on 22 September 2026ST3-DAT-01
Australian Curriculum v9AC9S5U01AC9S5I01AC9S5I03AC9S5I04

Sources

The pages the author read to write this activity.

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