Definitions
What is the definition of a mixture?
Two or more materials combined together
What physical property would show you that you needed to use a filter?
Particle size.
10 mL of water = ________ g of water
10
You have salt water with all the salt completely dissolved. You filter it. Does the solution now taste more salty, less salty, or the same amount of salty?
It tastes the same.
Do male or female sharks have thicker skins?
Female sharks
What is the definition of a solute?
the solid material that dissolves in a solution
Is a filter a physical property?
NO!
62.35 grams of water = ____________ mL
62.35
Draw a model and describe what happens when something dissolves.
Miss Hall will approve (or disapprove)
(dun, dun, dun...)
What is a group of toads called?
A knot!
What is the definition of a solvent?
the liquid of a solution
Tell me two physical properties that can help separate a mixture.
Size, magnetism, density, evaporation
Matter is always ____________.
Conserved
Miss Hall is going to draw. Tell me what can be in cup B.
Anything greater than 20 g.
What metal is liquid at room temperature?
Mercury
What is the definition of a crystal?
Natural form of a material
Knowing the particle size of a material in a mixture helps you know...
a. how much the mixture will weigh
b. what the crystals will look like
c. if the material will dissolve
z. what tool to use to separate it
z. Which tool to use!
80 mL of water is combined with 50 g of salt and 12 g of sugar. What is the mass of the solution? (Using your unit!)
142 g
Tell me two ways to know if a mixture is a solution.
The solid material dissolves, it is translucent, there is a change to the solvent
What is a group of camels called?
A caravan!
What is the definition of a solution?
A mixture in which the solid material dissolves in the liquid
Name FIVE physical properties.
particle size, particle shape, color, texture, whether it is magnetic, density
What does it mean when you say matter is always conserved?
It can change shape, state of matter, or location, but it is never destroyed.
You have a mixture of raisins, sea salt, and sharp iron nails for your snack. Tell me a procedure to separate the materials.
(Answers may vary)
1. Use a magnet to remove nails (don't eat please)
2. Add water to the mixture and stir
3. Pour through a screen (to remove raisins)
4. Pour into an evaporation dish and wait and wait and wait and wait and wait and wait and wait and wait and wait and wait and BOOM! Salt!
What is the only letter that does not appear on the periodic table?
J