Changes of State
What is an example of freezing?
Give an example of a solution
Apple juice, gatorade, kool-aid
What is evaporation?
In the solubility experiment, was Kool-Aid soluble or insoluble?
Soluble
Give an example of a mechanical mixture
Answers may vary
The change from a liquid to a gas is_______
In salt water, what is the solute and what is the solvent
What is a mechanical mixture?
A mixture with different parts you can see
In the alka-seltzer experiment, what type of tablet dissolved the fastest (whole tablet, 8 pieces, powder)?
Powdered tablet
Name one way of separating a mixture
Magnetism, sifting, sorting, filtration.
What is sublimation?
The change of state from a solid to a gas
What are two ways to separate a solution?
Evaporation and distillation
What is dilute?
When very little solute is dissolved in the solvent
When conducting an experiment, what are the 3 things you record?
Hypothesis, observation, and explanation.
What is magnetism?
Magnetism is used to separate metals from non-metallic items
Give an example of deposition
Formation of frost
What is the process of making maple syrup?
Sap is extracted from maple trees and boiled to leave behind the sugary syrup
What is saturation point?
When no more solute can be dissolved in a fixed volume of solvent
What are the 3 factors that affect dissolving?
Particle/material size, temperature, and stirring
What is primary treatment at a waste water treatment plant?
Where the separation of a mechanical mixture occurs