Changing States
The process by which matter changes from liquid to solid
What is freezing?
What you must do with energy to heat a substance
What is add/increase?
The state of matter in which particles are far apart and disorganized
What is a gas?
The freezing point of water (in Celsius).
What is 0oC?
The number one priority of lab procedure, even above getting accurate results.
What is safety?
The process by which matter changes from solid to liquid
What is melting?
What you must do with energy to cool a substance
What is remove/subtract?
This state of matter is achieved by cooling a liquid below its freezing point.
What is a solid?
An example of this would be when you have an ice-cold drink outside on a hot summer day, the glass sweats.
What is condensation?
The first thing you must do before beginning a lab, as part of safety procedure. Protects your eyes from exposure.
What is putting on goggles?
The process by which matter changes from liquid to gas
What is evaporation?
The process by which heat is transferred between substances
What is conduction?
The force that causes different substances to be in different states of matter, even at the same temperature
What is force of attraction?
What water does when it changes from liquid to solid ice, due to the arrangement of molecules in a fixed pattern with empty spaces.
What is expand?
The purpose of an experiment is to prove or disprove this
What is a hypothesis?
The process by which matter changes from gas to liquid
What is condensation?
A substance that heats or cools more quickly, such as metal
What is a conductor?
This process occurs naturally to liquid water over time if it is left out, and can be sped up by adding heat energy
What is evaporation?
Water vapor that rose into the atmosphere and got cold, it condensed and collected into floating water droplets.
What is a cloud?
When designing an experiment, you must do this in order to have valid results. Otherwise, the cause of change may be unclear.
What is controlling/isolating variables?
The process by which matter changes from gas to solid
What is deposition?
The action by which energy is conducted from a fast particle with high energy to a slow particle with low energy
What is collision/contact/slamming?
Solids at room temperature have this kind of attraction, especially when compared to gases
What is a strong force of attraction?
The shape water molecules are arranged in when in solid form
What is a hexagon?
A second copy of the sample which you are experimenting on that you leave alone and do nothing with. This is done to ensure your results are accurate and usable.
What is a control sample?