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Vocabulary 1
Vocabulary 2
Short Response 1
Short Response 2
Short Response 3
100
amount of mass in a given amount of space
What is density
100
atomic particles that have a negative charge
What is electrons
100
formula to find an object's density
What is density = mass/volume
100
good conductor of heat, change chemically when exposed to air, not brittle, bendable
What is metal
100
not good conductors, don't change chemically when exposed to air, brittle, not bendable
What is nonmetals
200
amount of matter in an object
What is mass
200
a reaction that gives off heat
What is exothermic
200
atoms have same number of
What is protons
200
make up last column of period table and are more stable elements
What is noble gases
200
if blue litmus paper turns red solution is a
What is acid
300
positively charged particle in an atom's nucleus
What is proton
300
a reaction that absorbs heat
What is endothermic
300
how periodic table is organized
What is by atomic mass
300
definition of colloids and give an example
What is contains undissolved particles that stay mixed in another substance ex: fog
300
if red litmus paper turns blue
What is base
400
chemical combination of tow or more elements
What is compound
400
amount of space an object takes up
What is volume
400
result from electrical attraction between atoms
What is chemical bonds
400
definition of emulsions and give an example
What is a suspension of 2 liquids that usually do not mix together ex: oil and salad dressing
400
if no reaction occurs
What is solution is neither acid nor base
500
a group of bonded atoms that acts like a single particle
What is molecule
500
electrically charged particle with unequal numbers of protons and electrons
What is ion
500
takes place when elements replace each other
What is replacement reaction
500
definition of suspension and give an example
What is mixture made of parts that separate upon standing ex: soil and water
500
how has model of atom change? how is change important to communicating results of scientific experiment
What is scientists continued to discover more about atoms and changed the model. as new information is gathered, ideas change. leads to greater understanding