Mdterm Flashcards
Substances changed into new and different substances
Chemical change
A chemical combination of substances
Compound
Take shape and volume of container
Gas
Center part of an atom
nucleus
The mass per unit volume of a substance
Density
Characteristics of a substance
property
Change in appearance of a substance
Physical change
Simplest form of a substance
Element
Take shape of container but maintains volume
Liquid
Subatomic particle and Nucleaus with no charge
Neutron
Definite Shape and volume
Solid
Sub atomic particle in nucleus with a positive charge
Proton
What does S I stand for
Inter-national system of units
What are two benefits of using S I measurements
Helps scientists share and compare data
What is the basic unit of length in S I
Meter
What determines the prefix use when measuring objects and S I system
The size of the object
How much larger is a KM than a m
1000 times larger