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Matter
Matter
17
Science
4th Grade
12/11/2013

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Cards

Term
What is matter?
Definition
Anything that takes up space and has characteristics that can be observed and measured
Term
Is crumpling a piece of pare a physical change or a chemical change?
Definition
physical change
Term
Is growing hair a physical change or a chemical change?
Definition
physical change
Term
Is metal turning to rust a physical change or a chemical change?
Definition
chemical change
Term
Is digesting food a chemical change or a physical change?
Definition
chemical change
Term
What are the 4 states of matter?
Definition
solid, liquid, gas, plasma
Term
What did Archimedes discover when he put objects in water?
Definition
The amount of water pushed out (displaced) is equal to the volume of that object
Term
What is a physical change?
Definition
any change to a substance that makes it look different
Term
What is a chemical change?
Definition
any change that makes a substance a new one
Term
What fabric did Wallace Carothers invent?
Definition
nylon
Term
What investigation did Joseph Priestly use when he discovered oxygen?
Definition
He heated a mercury compound
Term
What do scientists call the temperature at which solids change into a liquid?
Definition
melting point
Term
What do scientists call the temperature at which liquids change into a gas?
Definition
boiling point
Term
What do scientists call the temperature at which liquids change into a solid?
Definition
freezing point
Term
Which state of matter are molecules spaced very far apart?
Definition
gas
Term
In which state of matter are the molecules very close?
Definition
solid
Term
What is needed for matter to change from one state to another?
Definition
energy
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