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Phases
Physical/Chemical
Definitions
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100
Phase changes in a material are caused by...
What is temperature change?
100
An example of a physical property
What is color, shape, size...?
100
A change that alters the appearance of a material but not its composition.
What is physical change?
100
The temperature scale that has no negative numbers is the...
What is Kelvin scale?
100
The idea that matter cannot be infinitely subdivided...
What is the particle model?
200
A physical property unique to water.
What is it expands as it freezes or it has a high surface tension?
200
Give an example of a physical change.
What is grinding, changing color, any phase change?
200
A change that alters the identity of a material.
What is chemical change?
200
The average kinetic energy of the particles in a substance is proportional to its...
What is temperature?
200
The fact that you can smell rotten eggs from across the room is an example of...
What is diffusion?
300
When energetic liquid particles within a liquid form gas bubbles that rise to the liquid's surface.
What is boiling?
300
Give an example of a chemical property.
What is tendency to rust, bonds with iron, liquid at room temperature...?
300
Energy of motion
What is kinetic energy?
300
The theoretical point where all motion ceases and there is no energy.
What is absolute zero?
300
One characteristic of a good scientific model
What is that it helps organize all of the ideas about a phenomenon?
400
One characteristic common to both liquids and solids.
What is both liquids and solids are essentially incompressible or both liquids and solids have a definite volume?
400
Give an example of a chemical change.
What is cooking an egg, burning, vinegar and water...?
400
Constant, random motion of tiny particles suspended in a liquid. Or the idea that all particles move constantly in some way.
What is Brownian movement?
400
High viscosity equals...
What is low flow?
400
A type of solid that has particles arranged in a random, disordered pattern.
What is amorphous solid?
500
The lowest energy state of matter is...
What is the Bose-Einstein Condensate?
500
RANDOM - A unit of length one order of magnitude smaller than nanometer; used to measure very small particles.
What is angstrom?
500
Individual particles held in a fixed, repeating pattern.
What is cystalline solid?
500
The SI unit appropriate for measuring the size of atom-sized particles.
What is nanometer?
500
One recently developed device (according to your book) for imaging atoms is...
What is the scanning tunneling microscope (STM)?