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Science unit 2 test

AnswerQuestion
Density The mass per cubic volume of a substance
Physical property A characteristic of a material that can be observed without changing the identity of the material
Mass The amount of matter in an object
Matter Anything that has mass and takes up space
Liquid A state of matter with a definite volume but no definite shape
Solid A state of matter with a definite shape and volume
Weight The gravitational pull on an object
Volume The amount of space an object occupies
Gas A state of matter that does not have a definite volume or a definite shape
Solubility The ability of one material to dissolve in another
Flammability The ability to burn easily
Chemical property A characteristic of a material that can be observed as the material reacts with or changes into a different substance
Physical change A change in matter in which no new substance is formed
Chemical change A change in matter that produces one or more new substances
Solubility is the ability to dissolve into a solvent. What is solubility?
Mass and Space Which properties must matter have?
Reactivity, ripping, rotting, and flammability Which abilities illustrate a chemical property of matter?
It changes states to gas What happens when a liquid reaches its boiling point?
Fixed mass, definite volume, definite shape Describe what identifies a solid.
Physical ice to liquid and the freezing What type of change can be reversed? Give an example.
Heavily packed —> ice freezer molecules —-> liquid Describe the difference in energy between an ice cube and liquid water.
Magnetism, use of a magnet Which method could you use to separate a mixture of iron filings and sand?
Burning wood Give examples of a chemical change.
Matter can neither be created nor destroyed What does the Law of Conservation of Mass state?
The log burns and turns into ash AND CO2 gas. Mass of log before = log after + CO2 After a log is burned, the mass of the ashes will be less than the mass of the log before it was burned. Explain.
Liquid Which state of matter has a definite volume but not a definite shape?
Mass the same; weight dependent on gravity If you could go to the Moon, would your weight on the Moon be the same as on Earth? How about your mass? Explain.
Mass/Volume What is the mathematical formula to calculate density?
Physical; ingredients mix -Solubility -Physical change -Separation of matter You make lemonade by mixing lemon juice, sugar, and water. Is this a physical change or a chemical change? Explain. Use and define all of the science terminology from this chapter that applies.
Chemical change. New substance formed Is photosynthesis a chemical or physical change? Explain.
Created by: user-1833763
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