1. BR: In your HSN, copy down today’s objectives
BR: In your HSN, copy down today’s objectives. Then glue in your half sheet! “What’s the Deal with Density?”
Objectives:
Explore the 3 rules of density.
Use mathematical equations to solve the rules of density.
Investigate and test the rules of density.
Apply real-world connections of density with the Earth’s Physical Layers.

2. Let’s go on a vacation! What do we need to bring? Mass? Volume?
Density?

3. What’s the deal with DENSITY?
#1 - If you pack more mass into the same volume, an object will become MORE dense.

4. Airheads!
Mass?
Volume?
Density?
What About a Coat?

5. #2 - If you pack the same mass into a smaller volume, an object will become MORE dense.

6. Back to week one: Does physical size really matter?
The aquarium experiment part II!
A pumpkin gourd vs. a paperclip
Mass?
Volume?
Density?

7. #3 – Just because an object has MORE mass, does NOT mean it is denser.

8. Let’s Summarize!
Volume – the amount of space an object takes up Mass – the amount of “stuff” or matter in an object #1 – If you pack more mass into the same volume, an object will become MORE dense. #2 – If you pack the same mass into a smaller volume, an object will become MORE dense. #3 – Just because an object has MORE mass, does NOT mean it is denser.

9. Now Illustrate!
Now Write the Formula!
I Density!
M=D V

10. “What’s the Deal with Density?”
Let’s Try It on Our Own!
“What’s the Deal with Density?”

11. How does this work in the real world
How does this work in the real world? Let’s do some math to figure this out! *If I wanted to find the density of water, how would I do it? *What about liquid objects?

13. Use your direction folders!
Density of Soft Drinks and the Mantle
Mini-PBL AC
Problem: How can I compare the density of Fanta & Diet Coke to help
explain the density layers of the Earth?
Research/Explain: Molten rock flowing inside the Earth is called ________.
Often, gases are dissolved in the magma. The gases in the magma are ______dense
than the surrounding material, and they rise to the _________. As the gases rise,
other materials/minerals are carried along with them towards the surface
of the Earth’s crust. This is how some igneous rocks experience __________.
Design: Below, please continue to design your experiment by observing –
3 qualitative (5 senses) and 3 quantitative (using #’s) observations of the
2 products at your table.
(Hint: if #1 for Fanta is the color of the can, then #1 for Diet Coke should be silver).
THIS IS NOT the DATA table…it is part of the RESEARCH
Use your direction folders!

14. Jobs: Speaker: Read the directions folder
Materials Manager: Retrieve the blue tray, put back equipment.
Checker: Double check the accuracy of your data. Use the calculator to make sure your math is correct.
Reporter: Be ready to present your group’s findings.
Time Keeper: Help group stay on task and work one step at a time.
Encourager: Make sure everyone is involved and on task. Let each person be a part of the hands-on inquiry!

15. Explain Today’s Problem:
What is density and what role does it play in the layers of the Earth? OR How does a solid float on top of a liquid? Partner talk

16. Summarize: Define today’s Tech Terms- 1) Mass:   2) Volume:   3) Density:   Exit ticket: Airhead Challenge.

17. Day 2: Define Friday’s Tech Terms- 1) Mass:   2) Volume:   3) Density:   Let’s work together and apply our learning to the layers of density for our planet, Earth. Take out the sheet in your blue tub and label it.

18. Real-World Connections: Label & Discuss

19. What is the best Estimate of the densities of the various layers of Earth?
Continental Crust: g/cm
Oceanic Crust:
Mantle: (Avg of 3 layers)
Outer Core (fluid):
Inner Core (solid): 13.5

20. Day 2 Bell Ringer:
Please take out your “What’s the Deal with Density?” Lab work.
Be ready to test and evaluate our density math from yesterday.

21. Let’s summarize our data analysis!
Why do some sodas sink and some sodas float? What did we find out about the candy bars?
Why does a solid layer of Earth float on a liquid layer?

22. Apply your understanding:
Now Let’s try it ourselves: Problem: What has more density- Water, 3 Musketeers, or Snickers?
Candy Bar
Mass
(grams)
Volume
(cm3 or ml)
Illustrate
Results
Density
(Formula, Work, Answer)
WHOLE
3 Musketeers
scale 
lx wx h 
Formula: ___________________________
Work: _____________________________
Answer: ___________________________
Prediction: sink OR float
Observation: sink OR float
HALF
Snickers
Apply your understanding:
Explain it: Based on the results above,
what do you predict will happen to the
½ Snickers?