Mixtures and Solutions Investigation 1 and 2

Safety Matters 100 Potpourri Saturation Insanity Mixture Mania Description Detectives Final Jeopardy

This is where you should be the whole time during the experiment. A

What is at your seat with your group?

This is how you should smell unknown materials. A

What is wafting?

This is why you should wash your hands after experimenting with chemicals. A

What is accidentally getting chemicals in your mouth and eyes?

This is when you should read all the directions for the experiment. A

What is before you start the experiment?

This is what you should never do with an unknown material. A

What is taste, smell and touch?

These are descriptive words that describe texture. (at least 3) A

What are rough, smooth, gritty, bumpy, powdery, etc.?

A These are descriptive words that describe color. (at least 4)

What are colorless, transparent, translucent, opaque, or any color?

This can be described as dull, glossy, or shiny. A

What are words that describe luster?

This can be described as brittle, malleable, hard or soft. A

What are words that describe hardness?

These are different properties of matter. (name at least 4) A

What are luster, shape, size, color, texture, odor, harness, solubility, saturation point, and density ?

This is the definition of a mixture. A

What is a blend of 2 or more substances?

This is the definition of a solution. A

What is a mixture where one substance dissolves in another?

These are 2 examples of solutions. A

What is salt/water, sugar/water, etc.?

These are the four ways mixtures can be separated. A

What are by hand, screen filter, paper filter, and evaporation?

This is the only way to separate a solution. A

What is evaporation?

This is the definition of a saturated solution. A

What is a solute dissolving in a solvent until no more dissolves?

How you know when a solution has reached its saturation point. A

What is it when the solute forms at the bottom of the container even after shaking?

This is the solute that is more soluble out of salt and citric acid. A

What is citric acid?

This is why it is important to wet the paper before filtering out undissolved material. A

What is to minimize the water lost from the original 50 ml?

This could account for different results for the saturation experiment among the different groups. A

What are mistakes in measuring water, weighing on scale, not wetting paper filter properly, etc.?

A

What are salt crystals?

A

What are citric acid crystals?

These are the two parts of a solution A

What solute and solvent?

Gives food a sour flavor. A

What is citric acid?

This is the property that substances have of dissolving in solvents. A

What is solubility?

How can you determine the amount of salt (g) in a saturated volume of water? A

Filter out undissolved salt using paper filter/funnel Place equal measure of plain water on one side of the scale and the saturated solution on the other side Add gram pieces into the plain water until it is balanced. Count the gram pieces