Transformations
The normal direction of heat flow.
What is warm to cool?
What is an ion?
A pH of less than 7.0.
What is an acid?
The melting/freezing point of water.
What is 0 degrees Celsius (32 degrees Fahrenheit)?
The resistance to flow of a substance.
What is viscosity?
The process of changing from a solid to a liquid.
What is melting?
The presence of opposite charges at different points in a molecule.
What is polarity?
A pH of more than 7.0.
What is a base?
The evaporation/condensation point of water.
What is 100 degrees Celsius (212 degrees Fahrenheit)?
The reason water is called the universal solvent.
What is it is good at dissolving many substances?
The process of changing from a gas to a liquid.
What is condensation?
The elastic property that allows drops to form and creates the smallest surface area.
What is surface tension?
The pH os a substance is controlled by the concentration of this kind of atom.
What is a hydrogen atom?
The percent of the universe that is composed of plasma.
What is 99 percent?
Two engines studied in this chapter and how they differ.
What are internal combustion and external combustion engines. Internal combustion engines combust inside the cylinder whereas external combustion engines combust outside the cylinder.
The process of changing from a solid to a gas. (Hint: dry ice)
What is sublimation?
Hydrogen bonds do this in a substance like water.
What is pull molecules together because of the slight attraction created by the polarity of the molecules.
An example of a strong base and a weak base. (List one of each.)
What are drain cleaner, ammonia, or bleach (strong)?
What are baking soda, soap, or toothpaste (weak)?
The state of matter that has the most energy.
What is plasma?
Two things Daniel Fahrenheit was responsible for creating.
What are a thermometer with mercury and the Fahrenheit scale?
The process of changing from a gas to a solid.
What is deposition?
Three of the following are connected to the polarity of water.
hydrogen bonds, surface tension, solubility, or freezing point
What are hydrogen bonds, surface tension, and solubility?
An example of a strong acid and a weak acid. (List one of each.)
What is citric acid, gastric (stomach) acid, or battery acid (strong)?
What is milk, soda water, or a banana (weak)?
Three examples of plasma.
What are stars, nebulas, solar winds, aurora borealis (norther lights), aurora australis, lightning, fire, or welding arcs.
The scale that is based on the Celsius scale and how it is unique.
What is the Kelvin scale because it is an absolute scale. It begins at absolute zero, has no negative numbers, and does not use degrees.