A show performance where your class interacts with our science presenter as we explore how liquid nitrogen affects the properties of materials. Engaging demonstrations cover phase changes, expansion and contraction, Newton's Laws, basic cell theory, air pressure and the atmospheric research. Explanations and demonstrations are tailored to the year level and abilities of your students. Includes pre-class and post-class activities as well as background teacher notes.
Demonstrations include:
Safety of cryogenic substances
Fog breath Condensation demonstration.
The shrinking balloon Air pressure demo
Balloon blow up! Transferring heat energy.
Lid launcher Trapped expanding gases
The flying glove Rapid expansion!
Ball smasher Why can rubber shatter?
Banana hammer Instant freezing!
Liquid Nitrogen sprinkler Very 'quick'!
Cool lasers Lasers in research?
Frozen bubbles Clues about our environment.
Cooling circuits Cold chemistry
Leidenfrost effect Hovering nitrogen
Levitating magnets Using a superconductor
Objectives:
The student will:
- explore changes in state from solid to liquid to gas with a variety of materials when heated or cooled
- understand that gas pressure changes by heating or cooling
- learn about basic cell theory
- learn that an object must push one way to go the other way (Newton's Third Law of Motion)
- engage in a discussion carbon dioxide and it's possible effects on global warming
- develop an appreciation for research into superconductivity and its implications to future energy consumption
Program Format
Time is allowed throughout the workshop to ask and answer questions. We treat video conferences in the same format as traditional science incursions.
1. Program begins with a general introduction and discussion on timezone and weather differences between Australia and your school
2. We discuss liquid nitrogen's temperature and perform a number of demonstrations on gas expansion on heating.
3. Your class now performs the 'expand air' experiment using simple materials supplied by you.Please refer to the supporting .pdf document supplied to you on booking
4. We perform a number of cooling experiments.
5. We discuss the pre-class activities 'supercool water' and 'freeze lettuce' with your class. Please refer to the supporting .pdf document supplied to you on booking
6. We perform demonstrations based on current research using lasers and superconductors.
7. Time is allowed for further questions and discussion of cultural differences.
By Request Cost: $250.00
Fizzics Education (Australia)
Ben Newsome, Karin Vromans or Justine Bellamy
info@fizzicseducation.com.au
5 St James Place, Seven Hills
Sydney, New South Wales 2147
Australia
Phone: +612 9674 2191
Fax: +612 9624 1988
Taken from the CILC weekly updates at www.cilc.org