Bird Drinking Heat Thermodynamics Demonstration
$15.00(Ex GST)
• Evaporative cooling at head, water loss lowers head temperature rapidly for clear thermodynamics demonstration.
• Condensation of methylene chloride vapour in cooled head reduces vapour pressure relative to abdomen.
• Pressure imbalance drives internal fluid movement and shifts centre of mass, causing repeated tipping motion.
• Links phase change, heat transfer, and pressure differences to visible mechanical work in a cyclic system.
• Classroom-ready concept model for evaporation and condensation discussions, supervised educational or laboratory use only.
- Description
Description
Bird Drinking Heat Thermodynamics Demonstration is a classic classroom device that illustrates evaporative cooling, vapour pressure change, and cyclic heat transfer. When water evaporates from the fuzzy head, the head cools. The temperature drop promotes condensation of methylene chloride vapour in the head, lowering vapour pressure there relative to the abdomen. This pressure imbalance drives liquid movement and shifts the centre of mass, causing the bird to tip.
As the bird tips, the cycle can repeat, linking visible motion to thermodynamics concepts, evaporation, condensation, pressure differentials, and energy transfer in a closed system.
Our products are for laboratory or educational settings only. Use under appropriate supervision.
FAQs
Q: What physics concepts does this demonstrate?
A: Evaporative cooling, condensation, vapour pressure differences, and cyclic heat transfer leading to motion.
Q: Why does the bird tip after the head is wetted?
A: Evaporation cools the head, vapour condenses there, head vapour pressure drops, and the bird tips.
Q: What role does methylene chloride vapour play?
A: Condensation in the cooled head reduces head vapour pressure relative to the abdomen, driving the tipping cycle.
Q: Is this a heat engine style demonstration?
A: It demonstrates conversion of a temperature-driven pressure difference into repeated mechanical motion.
Q: What supervision is required?
A: Use in laboratory or educational settings under appropriate supervision.
Similar Products
Crow Receiver Cylinder Class A with Interchangeable Stopper, BORO 3.3
From $52.90 (Ex GST)
Scintillation Vial (Sample Vial), BORO 3.3
From $221.50 (Ex GST)
Glass Mortar and Pestle For Laboratory
From $6.00 (Ex GST)
PP Caps for Screw Neck Chromatography Vials
From $37.50 (Ex GST)
Air Track Spark Generator Cables, Precision Connection Set
From $9.90 (Ex GST)
Coplin Staining Jars, Slide Staining and Preparation
From $4.40 (Ex GST)
Test Paper Strips, Laboratory Reagent Paper
From $7.70 (Ex GST)
Chlorine Test Strips, Mid and High Level Water Testing Type
From $13.00 (Ex GST)
Collision Apparatus for classroom mechanics
$698.00(Ex GST)
Daniell Cell, Laboratory Electrochemistry Teaching Set with Terminals
From $44.00 (Ex GST)
Dissecting Instrument Sets, Walleted Laboratory and Classroom Kits
From $24.00 (Ex GST)
Dissecting Trays and Dishes, Polypropylene and Aluminium Lab Type
From $27.00 (Ex GST)
Educational rock specimens
From $20.00 (Ex GST)
Educational rock specimens For Display
From $22.00 (Ex GST)
Educational rock specimens for geology
From $20.00 (Ex GST)
Hooke’s Law Apparatus Complete with Spring Scale and Stand
$35.00(Ex GST)
Individual Mineral Specimens For Display
From $22.00 (Ex GST)
Mineral Specimens For Education
From $22.00 (Ex GST)
Mineral Specimens for Educational Geology
From $24.00 (Ex GST)
Science Charts, Classroom Reference Posters for Lab Chemistry
From $38.00 (Ex GST)
[porto_related_products_slider]
FEATURED PRODUCTS
BEST SELLING PRODUCTS
Polypropylene Filter Funnels, Gravity Filtration Range
From $1.00 (Ex GST)
Glass Petri Dishes with Lid, Autoclavable, Borosilicate Glass (BORO 3.3)
From $3.90 (Ex GST)
LATEST PRODUCTS
Adam Polaris PTB/PBB Toploading Precision Balances for Lab Weighing
From $1,615.00 (Ex GST)
Adam Polaris Precision Balances for Accurate Lab Weighing
From $2,050.00 (Ex GST)
Adam PMB Moisture Analyser for Laboratory Moisture Testing
From $2,960.00 (Ex GST)
TOP RATED PRODUCTS
Adam Polaris PTB/PBB Toploading Precision Balances for Lab Weighing
From $1,615.00 (Ex GST)
Adam Polaris Precision Balances for Accurate Lab Weighing
From $2,050.00 (Ex GST)
Adam PMB Moisture Analyser for Laboratory Moisture Testing
From $2,960.00 (Ex GST)
What Our Customers Say
⭐⭐⭐⭐⭐
We ordered a set of customised BORO 3.3 borosilicate glassware for our teaching labs, and LabChoice Australia exceeded every expectation. From the first consultation to final delivery, their team listened carefully, offered expert advice, and ensured every piece matched our specifications perfectly.
The clarity and precision of the glassware are exceptional, and the quick turnaround made setup effortless. It’s refreshing to work with an Australian supplier who genuinely understands laboratory needs and takes pride in quality craftsmanship. We’ll definitely be returning to LabChoice for future glassware requirements
⭐⭐⭐⭐⭐
Our lab required high-precision BORO 3.3 glassware for analytical testing, and LabChoice Australia delivered outstanding results. The ordering process was simple, communication was clear, and every beaker and flask arrived perfectly calibrated and ready for use.
The quality of the glass is exceptional — resistant to heat, easy to clean, and consistently accurate in measurement. It’s reassuring to know there’s an Australian supplier that combines scientific precision with genuine customer care. I’d recommend LabChoice to any research team looking for dependable labware
⭐⭐⭐⭐⭐
We needed a set of customised borosilicate glassware for a specialised project, and LabChoice Australia delivered exactly what we envisioned. The team worked closely with us from design to production, ensuring every detail met our specifications. The craftsmanship is exceptional, and the turnaround time was impressive. It’s reassuring to know we can rely on them for unique, made-to-order pieces
⭐⭐⭐⭐⭐
LabChoice Australia has completely changed the way we source our lab glassware. The quality is consistently top-notch, and every piece meets the precision we need for reliable results. Their team knows their stuff, answers our questions quickly, and always goes the extra mile to help — they’re more like partners than just a supplier.
⭐⭐⭐⭐⭐
We trust LabChoice Australia because they deliver every time. Their borosilicate glassware is durable, accurate, and perfect for the high-heat work we do. Everything arrives well-packed with clear specs, so there are never surprises. It’s reassuring to deal with a supplier who understands both compliance and the demands of a busy lab