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Vocabulary
Physical Changes
Matter
Properties of Substances
To Change or not to Change
100
Characteristics of a substance that can be observed without changing the identity of the substance
What are physical properties
100
Process by which a solid becomes a liquid
What is melting
100
Liquids can become
What is gases and solids
100
Density is the measure of amount of matter in a given volume. The equation for Density is
What is D = m/V Density = mass / Velocity
100
Occurs when the physical properties of a substance change but not the substances identity.
What is a physical change ex. sheep - wool
200
Examples of physical properties
What is color, shape, size, texture, volume, and mass
200
0 degrees Celsius OR 32 degrees celsius
melting point
200
Gases can become
What are liquids
200
Aluminum and iron are good materials for making pots and pans because they conduct ______ well
What is heat
200
A piece of wood burning or an iron fence rusting is an example of
What is a chemical change
300
These describe how a substance can form NEW substances
What are chemical properties
300
Process by which a liquid becomes a solid
What is freezing
300
The process by which a liquid becomes a gas
What is evaporation
300
The measure of how well a substance dissolves is
What is solubility
300
The change in which new substances are formed.
What is a chemical change
400
This is the process when of when one substance changes into another substance
What is a chemical change?
400
The specific temperature at which a liquid becomes a solid
What is freezing point
400
Process by which a gas changes its state into a liquid
What is condensation
400
What property makes the following true: Copper wire conducts this easily Rubber and plastic do not
What is electric property
400
A candy bar melting
What is a physical change
500
What are the signs of a chemical change?
What are: Production of an Odor Change in Temperature Change in Color Formation of Bubbles Formation of a Solid
500
When a solid changes directly into a gas
What is sublimation
500
This is another process by which a liquid becomes a gas that produces bubbles
What is boiling
500
What property makes the following true: You use this to pick up a paper clip but not a plastic button. Iron, cobalt, and nickel are all good materials for this. Zinc, copper, and aluminum are not good materials for this.
What is magnetic property
500
Give an example of 1 NEW physical change and 1 NEW chemical change
** Answers will vary **