- Aerated Water
- Air Engine
- Air Table
- Are you Hot or Not?
- Balancing Act
- Bending Beams
- Block the gap
- Braille
- Bridge the Gap
- Chalk Wall
- Changing Faces
- Chaotic Motion
- Circle of Discovery
- Circle of Discovery- The Internet
- Circle of Discovery-Bridge Design
- Circle of Discovery-Ideas hub
- Circle of Discovery-Internet
- Circle of Discovery-Medicine
- Circle of Discovery-photography
- Circle of Discovery: Design - Earthquake
- Circulation
- Colour Wheel
- Communication Codes
- Communication Dishes
- Computer
- Crystallography
- Digestive System
- Down the Drain
- Electromagnetic Spectrum
- Fibre Optics
- Flight Simulator
- Gear Table
- Handshake Mirror
- Harmonograph
- High Flyer
- Hit the Target
- Horizontal Periscope
- Human Battery
- It's Electric
- Larger Than Life
- Lift Me Pull You
- Light Table
- Lock Box
- Making Waves
- Mini Harmonograph
- Mobile Phone
- Move It
- Nervous System
- Newtons Cradle
- Organ Pipe
- Organ Pipe Tune
- Oscillating Pendulums
- Pendulums
- People Power
- Periscope
- Prove Pythagoras
- Radar
- Radio Station
- Reactable
- Reflection Refraction
- Robot Arm
- Science of Sport
- Sensation
- Simple Camera
- Simple Circuits
- Smoke Tunnel
- Solar Energy
- Sound Waves
- Structures and Stresses
- Telescope
- The Exhibition
- The Eye
- The Lung and Chest Cavity
- The Wheel Race
- Thermal Imager
- Tornado
- Tower of Hanoi
- Universe Wall
- Up and Down
- Vertical Periscope
- Viscosity
- Viscosity Plungers
- Volume and Mass
- Vortex
- Watch Your Waste
- Weight Lifter
- Wheels Within Wheels
- Wind Tunnel
Crystallography
There are 3 parts to this exhibit
Table A Use a microscope to look at crystal formation,
SALOL (Phenol Salicylate) which chrystalises at room temperature.
Table B Use a magnifying glass to see examine some common crystals:
- Slate - a metamorphic rock
- Quartz rock crystals (Silicon dioxide (SiO2))
- White Spar (Flints from a glacier)
- Phenol Salicylate (see A & C)
- Iron Pyrites (Fools Gold)
- Rose Quartz (SiO2 contaminated with traces of titanium, iron or manganese)
Table C Look at crystal structures with polarized light, changing the angle of polarization changes the appearance of the crystals of Phenol Salicylate.
Activity.... Do – Think - Learn
a) Crystals are made up of definite geometrical shapes. Different substances crystallize at different temperatures.
b) Many substances are composed of a regular geometrical arrangement of particles called crystals. Sometimes the crystals are not obvious because they are too small or stuck together. Different substances have different shaped crystals.
c) Most solids, including metal, are made up of crystals. Special (polarizing) filters enhance the patterns in the formation of crystals.
What do you notice about the coloured parts?
What shape are the crystals?
The Science Bit
Crystallography is the study of crystals. Geometric crystallography looks at the outer shape of crystals and X-ray crystallography deals with the inner structure of crystals specifically its arrangement of atoms. Crystals are different from liquids as they have a 3-D latticework of molecules. The set up of molecules give each crystal its particular shape and properties such as hardness or electrical conductivity.
Curriculum Links
Sorting and using materials
Grouping and changing materials
Rocks and soils
- That every material has many properties which can be recognised using our senses and described using appropriate vocabulary
- To record observations of materials
- That there are many materials and these can be named and described
- That materials can be sorted in a variety of ways according to their properties
- That there is a range of materials with different characteristics
- That some materials occur naturally and some do not
- The names of some naturally occurring materials
- That rocks are used for a variety of purposes
- That rocks can be grouped according to observable characteristics
- To observe and compare rocks
- That beneath all surfaces there is rock
- To observe differences and make comparisons
Last Modified: 29/09/2011
