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MIS Benjamin Chapter 3
MIS Benjamin Chapter 3
38
Science
8th Grade
01/20/2016

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Term
malleability
Definition
the ability to be made into thin sheets
Term
physical change
Definition
a change in the form of a substance that does not change its identity
Term
Electrical Conductivity
Definition
the ability to conduct electric current
Term
Density
Definition
the ratio of the mass of a substance to the volume of the substance
Term
Solubility
Definition
the ability of a substance to dissolve
Term
physical property
Definition
characteristic of matter that can be observed without changing the matter's identity
Term
Equation used to calculate a substance's density
Definition
D = m/V
Term
An object is placed in water it the density of that object's density is less than the density of water what will happen
Definition
The object will float on top of the water
Term
Examples of physical change include
Definition
the shaping of a gold bar and the melting of a frozen fruit bar
Term
What kind of changes in substances are always physical changes
Definition
changes of state from solid to liquid to gas and back.
Term
Wearing the right safety equipment and taking every precaution to prevent accidents are examples of
Definition
taking responsibility in the laboratory
Term
This causes the most accidents in a lab
Definition
failure to read and follow directions carefully
Term
Emergency medical care for someone who has been hurt or who is sick is called
Definition
first aid
Term
When an accident happens during a science lab you should always
Definition
tell your teacher
Term
Reading and following directions
Definition
checking all instructions before doing an experiment
Term
using proper safety equipment
Definition
wearing heat resistant gloves when picking up a hot object
Term
practicing neatness
Definition
gathering equipment before starting an activity
Term
knowing what a picture of goggles means
Definition
recognizing safety symbols
Term
cleaning up properly
Definition
following your teacher's directions when disposing of waste
Term
Composition
Definition
the type of matter and its arrangement in an object
Term
flammability
Definition
the ability of a substance to burn
Term
chemical change
Definition
the process of changing into entirely new substances
Term
Physical change
Definition
a change in matter that does not change the identity of a substance
Term
reactivity
Definition
the ability of a substance to change and form one or more new substances
Term
Chemical properties are harder to observe because
Definition
chemical properties change substance's identity
Term
the best way to tell if a chemical change has taken place is
Definition
if the composition changes
Term
Examples of chemical change include
Definition
soured milk, rusted metal and digested food
Term
When most chemical changes take place
Definition
heat is liberated or absorbed
Term
ductility
Definition
physical property
Term
color
Definition
physical property
Term
reactivity
Definition
chemical property
Term
flammability
Definition
chemical property
Term
change of state of matter
Definition
physical property
Term
molding a piece of silver
Definition
physical change
Term
melting a bar of aluminum
Definition
physical change
Term
iron rusting to iron oxide
Definition
chemical change
Term
wood burning to ash and smoke
Definition
chemical change
Term
sugar turning to caramel
Definition
chemical change
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