Elements
Compounds
Mixtures
Critical Thinking
This and that
100
this is a pure substance that cannot be separated into simpler substance
What is Elements
100
a pure substance that is composed of two or more elements that are chemically combined
What is a compound
100
Cheese, peperoni, green peppers and black olives on some pizza dough, but they don't change properties
What is a mixture
100
three properties of mixtures that are in a fruit salad
answers will vary.. apples, bananas, pears, stawberries
100
a measurement of the amount of solute dissolved is
What is concentration
200
a substance that is only one type of particle, extra 100 if you tell me a example of a pure substance
What is pure substance
200
compounds are not random combinations of element but they have a specific
What is ratio according to their masses
200
a mixture that appears to be a single substance but it composed of particles of two or more substances that are distributed evenly amongst each other
What is solution
200
in order to keep the "fizz" in the carbonated beverages after they have been open, you should put them in this place..why?
What is refrigerator, gasses are more soluble at lower temperature, so more gas will stay dissolved in the beverage if it is kept cold
200
a solute is the amount of solute needed to make a saturating solution sing a given amount of solvent at a certain temperature
What is solubitiy
300
each element has it own personalities
What is characteristic properties
300
when you combined sodium and chlorine (be careful it could kill ya!)
What is table salt
300
the process that is which particles of substances separate and spread evenly throughout the mixture is known as
What is dissolving
300
at sea level, water boils at 100c, while methane boils at -16c . Which of these substances has a stronger force of attraction between it particles..
What is water has a stronger force of attraction between its particles. A temperature and therefore more energy is required to separate the water particles from one another than is needed to separate the methane particles from one another
300
a mixture in which particles of material are dispersed throughout a liquid or gas but are large enough that they settle out
What is suspension
400
Elements are divided into three categories
What is metals, nonmetals and metalloids
400
Compound need this change to break it down
What is chemical change
400
the substance that is dissolved
What is solute
400
physical properties: crushed shaped, somewhat shinny, metallic
What is soda can
400
some mixtures have properties of both solutions and suspensions
What is Colloids
500
these elements are dull and poor conductors of thermal energy and electric currents
What is nonmetals
500
two way that you can break down a compound
What is heat and electrolysis
500
the substance in which the solute is dissolved
What is solvent
500
two classmates are having a debate about whether a spatula is an example f technology. Using what you know about science, technology and spatulas, write a couple of sentences that will help your classmates settle their debate
What is technology is the application of science to accomplish tasks, a spatula is used to lift or turn food is an example of technology.
500
when solid iodine is dissolved in alcohol, which is the solute? the solvent
What is iodine-solute, alcohol-solvent
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