Outstanding Observations & Inferences
Properties.
Define mixture.
Two or more substances that are combined/put together and can be separated.
What are the two components of a solution?
Solute and solvent
What are the three pieces of lab equipment used to separate mixtures? (One of them has two parts -- you must get both!)
Screen, coffee filter AND funnel, evaporation dish
You see a woman walking towards the library with two sacks filled with books. Make a logical inference based on these observations.
Ms. Martinez Decides
Examples: The woman likes to read.
The woman is a librarian.
The woman is donating books to the library.
What are the two types of mixtures?
Heterogeneous and homogeneous
What happens to a solute when it is placed in a solvent?
It dissolves.
What is the BEST WAY to separate a mixture of seashells and water?
Screen
Make three observations of any soap that you have at home! (Liquid, bar, or foam)
Ms. Martinez decides
Examples: Smells fruity/citrusy, slippery, transparent
Not acceptable: Soapy!!!
True or false: A solution is a type of mixture.
True
Sketch a photo of what solute and solvent particles look like inside a solution.
** Sketch should show solute and solvent particles evenly blended together **
What is the best way to separate a sugar & water solution?
By using an evaporation dish (and a heat lamp to speed up the evaporation).
Give three properties of a cactus.
Ms. Martinez Decides
Possibilities: Green/colorful, pointy, sharp, circular/cylinder shaped, has spines, rough
1. What is the definition of a heterogeneous mixture?
2. Give an example
1. A mixture that is not uniform; the different parts can be easily seen.
2. Ms. Martinez Decides
(Possible examples: pizza, salad, burrito bowl, bubble tea, etc. etc. etc.)
Which of the following Starbucks drinks is also a solution? (Assume you order it the way Starbucks makes it -- you do not ask for anything different).
a. Vanilla sweet cream cold brew
b. Hot green tea
c. Frappuccino
d. Strawberry acai refresher
b. Hot green tea
What is the BEST WAY to separate a mixture of cornstarch and water?
Using a coffee filter and funnel
Based on the fact that the liquid is see-through, it might be a solution.
Note: ** Further tests need to be conducted**.
1. What is the definition of a homogeneous mixture?
2. Give an example.
1. A mixture that is uniform; the different parts cannot be seen.
2. Ms. Martinez Decides
(Possible examples: chocolate milk, saltwater, gravy, maple syrup, etc. etc. etc.)
What are THREE pieces of evidence that a mixture is a solution?
1. A material is dissolved
2. It cannot be filtered
3. It is transparent to light
Which of the following pieces of lab equipment are best for separating a solution?
1. Screen
2. Coffee filter & funnel
3. Evaporation dish
Evaporation dish