What happens when you add water to a cup containing a dry material?
(water and solid material make a mixture)
How can a mixture be separated?
(some mixtures can be separated with screens and filters)
What happens when salt and water are mixed?
(salt dissolves in water to form a solution.
Solutions are clear and cannot be separated with a filter).
How can you separate a solution?
(When a solution evaporates, it leaves the dissolved solid material behind)
How can you identify the material left behind by evaporation?
(If the evaporation material forms a crystal, it can be identified by its properties, such as shape and pattern)
Is there a limit to the amount of salt that will dissolve in the water?
(Yes)
How can you determine the amount of salt present in a saturated volume of water?
(Weigh the saturated solution and subtract the mass of the water)
Which is more soluble in water, salt, or Epsom salts?
(Epsom salts is four times more soluble than salt)
What happens when a solution is made with water and two different solvents?
( Sometime when two or more substances are mixed, a reaction occurs; reactant form new products.)
How do you know when a chemical reaction has occurred?
(Changes, such as heat, gas formation, and precipitate formation, are evidence of a chemical reaction).
What are the basic particles of matter?
(Atoms are the smallest particles of matter. Atom can combine to make molecules, which are the basic particles of most substances.)

What forms can reaction products take? ( Products of reactions can be solids (precipitates), liquid, gas (bubbles), or dissolved.)
How can you identify the products of a reaction? ( The physical properties (crystal shape) and chemical properties (reacting with acid) of substances help identify them.)
What does a chemical reaction tell you? (How the atoms in the reactants and products rearrange during a chemical reaction).
What is an element?
(A substance that is made of only one kind of atom)
What is a compound?
(A substance made up of two or more different kinds of atoms)
What is the periodic table?
(a graphic display of the elements)
What properties do all metals share?
(Metals are elements that are shiny, are shapeable, and can conduct heat and electricity)
Are metals alloys? How can you tell?
(Yes, they have the universal properties shared by metallic elements)