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Vocabulary
More vocabulary
Even more vocab
Short Answer
Essay
100
Mass per unit of volume
What is density?
100
the state of matter resulting from gas heated to extremely high temperatures
What is plasma?
100
a substance made by combining two or more different materials in such a way that no chemical reaction occurs and can usually be separated back into its original components.
What is a mixture?
100
What are the limitations of Science?
Money, technology,
100
117
How many known elements exist?
200
the amount of matter in an object
What is mass?
200
the state in which matter has a definite shape and a definite volume
What is a solid?
200
the smallest particle of an element that still has the properties of that element
What is an atom?
200
A change that produces an entirely different substance
What is a chemical change?
200
Name and describe 2 physical and 1 chemical property that you could use to distinguish between sand and brown sugar.
Size, color, and solubility
300
the amount of space that an object takes up
What is volume?
300
a substance made of the atoms of two or more elements in chemical combination
What is a compound?
300
a mixture of two or more metals or of a metal and a nonmetal
What is an alloy?
300
A change in size, shape, or state of matter
What is a physical change?
300
A friend tells you that a rusted iron nail is proof that matter disappears because the rust weighs less than the nail. How could you respond to this statement? What law could you state?
I would respond that the reason the rust weighs less than the nail is because the rust was created when the nail mixed with water and oxygen. These took away some of the matter which is why it weighs less. I could state the Law of Conservation of Matter.
400
the state in which matter does not have a definite shape of a definite volume
What is gas?
400
a substance that can't be broken down into a simpler substance by ordinary processes
What is an element?
400
An alloy is a mixture of two or more metals, or a metal and nonmetal. They are used because their properties are superior to the pure element
What is an alloy and why are they used?
400
Metals, nonmetals, metalloids, and noble gases
What are the 4 basic types of elements?
400
Name one physical change that you have observed today and one chemical change that you have observed today.
Physical: tore paper; chemical: digested food
500
the state in which matter has a definite volume but not a definite shape
What is a liquid?
500
anything that has mass and volume
What is matter?
500
Law that states that matter cannot be created or destroyed, it can only change form
What is the law of conservation of matter?
500
The chemical formula for water is H2O. How many atoms are in a water molecule?
3
500
T/F: All matter has mass and volume
True