1. Warm Up Complete section A only Write on the handout Glue into your notebook

2. Warm Up Get out your homework: I am going to check it! NO TALKING. NO EXCEPTIONS. SIT IN ASSIGNED SEATS.

3. 4 th Block Lab Table must be in notebook! Room Temperature Results: SandSaltSugar 1 spoonful: did the solute dissolve? 3 spoonfuls: did the solute dissolve?

4. 4 th Block Lab Table must be in notebook! Increased Temperature Results: SandSaltSugar When we added heat, did it cause the solution to increase, decrease, or stay the same? Solubility: Increased Decreased Stayed the same Solubility: Increased Decreased Stayed the same Solubility: Increased Decreased Stayed the same

5. 4 th Block Hypothesis vs. lab results Must be in notebook: My hypothesis was ____________. (correct / incorrect)

6. 4 th Block Conclusion Must be in notebook! After conducting this experiment, I learned that ____________________________________________ ____________________________________________, ____________________________________________ ________________________________________, and ____________________________________________ ____________________________________________. I now know that solubility _____________ (increases/ decreases) with increased temperature.

7. 4 th Block Solubility Notes – Write in notebook A solute’s solubility depends on : – type of solvent used – the temperature The most common solvent = water known as the “universal solvent”

8. 4 th Block Discovery Ed video “Solubility” “Solutions”

9. Experiment Time Do you think a crayon and an ice cube will melt at the same time? Different substances have different melting points The crayon and ice cube melted at different rates and times because they have different melting points! What has the higher melting point (takes the most heat to melt)?

10. Experiment Time Do you think milk and water will boil at the same time? Different substances have different boiling points The milk and water boiled at different rates and times because they have different boiling points!

11. Experiment Time! Is oil soluble in water? No, oil is not soluble in water. When we mix them together, they settle out into two distinct layers. They do not mix together = they are insoluble! Different substances have different solubilities

12. Density Notes Review your Density Definition = how “crowded” the atoms are in matter Different substances have different densities Density of water = 1.0 gram / mL

13. Density Notes If density of a substance > the density of water = it will sink If density of a substance < the density of water = it will float

14. Oil and Water Question? Why is the oil on top of the water? The oil’s density = 0.926 grams/ mL Water’s density = 1.0 g/ mL

15. Discovery Ed. videos “Density” “Measuring Volume and Density”

16. Density Column Lab Purpose: What will happen if I pour liquids of different densities into the same container? Research: my notes

17. Density Column Lab Hypothesis: If I pour water, oil and syrup into the same container, then I think.. the liquids will all mix together. or the liquids will separate into distinct layers.

18. Density Column Lab Materials: – Water – Oil – Dish soap – Transparent container

19. Density Column Lab Analysis: Record the results in your notebook Liquid at Top of container: Liquid in Middle of container: Liquid at Bottom of container

20. Hypothesis vs. lab results My hypothesis was ____________. (correct / incorrect)

21. Conclusion After conducting this experiment, I learned that ____________________________________________ ____________________________________________, ____________________________________________ ________________________________________, and ____________________________________________ ____________________________________________. I now know that if I mix materials with different densities then the materials will ________________________________________________________________

22. Density Worksheet Complete section B on the handout

23. Homework Review for quiz Finish your density worksheet (glue into notebook) Complete your illustrations on your foldable!