Transcript Week 2
Week 2
9/8-9/12
The Material World
Chapter 2 9/3
WHOT Tuesday 9/9 Hang on to last weeks WHOT, we’ll bring that back out later.
Objective: • Go over School handbook • Probe prior knowledge of density and solubility.
WHOT happened last week?
Exit Task: Create a test question- then answer it!
A great question must… Be relevant! Relate your questions to the daily objective Have content. It must review the scientific ideas discussed during that period.
Complete sentence, with proper grammar Example: Often times two layers form in salad dressing. How can you explain this observation using two properties of matter?
Vocab Responsibilities: Density, Solubility, Reactivity
Exit Task: Create a test question- then answer it!
A great answer… Must use evidence/information to provide a complete answer to the question.
Must review the day’s content and also extend the learning or make a connection.
Must be a complete sentence.
Example: The two layers observed show that there are at least two substances in the salad dressing that are not soluble. The substances then separate due to density, with the less dense substance at top.
Vocab Responsibilities: Density, Solubility
HHS Science Grading Rubric
WHOT is happening this week.
Materials Make the Toy
The Highlander Sheet Objective: • Create a data table to record collected data of solubility and density of five known substances.
• • Responsibilities: Completed data table… including the data (plus anything you need signed Due Friday!)
B Journal Title: Materials Make the Toy A Create a T-chart in your journal… Similarities Differences
Using only these ingredients… Isopropyl alcohol Water Mineral oil Dye #1: red dye Dye #2: purple dye . . . To create a recipe for a wave toy with 2 layers. o o On page 64, look at chemical models of each ingredient. In your groups, decide on a data table to organize testing each pair of substances listed above to help you create a recipe.
Create a Data Table how will you keep your data organized?
KEEP the following in MIND… Data must be recorded for every pairing of the chemicals.
• Data table should be clear, concise, and efficient.
Keep in mind tests can be done for some mixtures of substances as well.
Ingredients: Isopropyl alcohol Water Mineral oil Dye #1: red dye Dye #2: purple dye
How to start a prototype…
Using a well plate allows the scientist to rapidly test combinations. It also minimizes cost because only a drop or two are used for each test.
These are well plates
The Material World
Chapter 2
The Highlander Sheet Objective: • 9/11 Create a recipe for a wave toy based on student collected data of solubility and density. Explain at the atomic level.
• Responsibilities: Reflect and connect c=questions complete
Data from yesterday.
What your chart should look like.
You should have all data on solubility in the first 15 minutes of class.
In your Journal RECIPE Creating Sketch the each wave toy and label which chemicals are in each layer… • Pick which wave toy you are going to make based on your “recipes” that you created.
If you were to dye an oil based paint, would you want to use the purple dye or the red dye? Explain your reasoning.
In your Journal Reflect on your own 1.
2.
There were 4 substances in each bottle. Why were there only 2 layers in each wave bottle? Use evidence from your data chart and key vocabulary in your explanation. Did the red dye and purple dye dissolve the same way in all substances? How did this effect your recipe?
HHS Science Grading Rubric
To get a 4 You need to make a connection to something else outside of class.
This could be… “Last year in science we did something like this…” Then explain what you learned and how this new knowledge relates.
“This reminds me of when…” Again, explain HOW what you are learning is connected.
“OMG!!! I totally saw this happen when…”
Put a for a each piece of evidence.
Underline Key vocabulary.
Put a happy face if they made a connection outside of science class
The Highlander Sheet Objective: • 9/11 Differentiate between polar and non-polar properties of molecules.
• Responsibilities: List anything you haven’t turned in yet.
Deepwater Horizon
Deep Water Horizon, an oil platform, exploded in April of 2010. The explosion caused the oil pipeline to crack deep in the ocean. The oil that was released killed many shore birds and animals hundreds of miles away. Explain how the oil got from crack at the bottom of the ocean to the surface. Then explain why the oil was able to travel to the shoreline. A strong response will include relevant key vocabulary.
WHOT about today?
• Your Question: • You need to paint a fence, you do not want the rain to wash it away. Do you use an oil, alcohol, or water based paint? Why.
Excellent test question… The red dye comes in a powder, like Kool-aid, which substance did it dissolve it in? Alcohol, water or baby oil How do you know?
The Material World
Chapter 2
Galileo Thermometer 1.
Draw a sketch of what you see labeling each important part.
2.
Describe the movement you see when heat is applied.
3.
Predict what is causing the movement using scientific concepts.
Reflect and Connect
In your notebook: What scientific concepts did you observe with the candles that may help explain the movement you saw in the Galileo thermometer?
WAIT FOR THE STAMP!
QUIZ (3) Answer
There are only 2 layers in each bottle because some of the substances were soluble in (mixed with) each other. In the Purple bottle, the oil and dye are soluble and less dense than the mix of alcohol and water. In the RED bottle, alcohol, water, and dye are all soluble and more dense than the oil which floats in a layer on top.
On Target?
Is the density of candle wax the same as the density of water?
How could you find out?
On Target?
Does the DENSITY the AMOUNT of a liquid change as changes?
In notebooks 3.
4.
With your
new
tablemates: 1.
Write a procedure for determining the density of any liquid in your notebook and get a stam p from me.
2.
Find the density of 20, 50, 100ml of water.
Graph your results see page 68.
Write a conclusion describing the trends in graph.
Grading
4
You explained why mixing 4 different solutions gave only 2 layers using scientific vocabulary, ie: density and dissolve or solubility.
2
You explained how there were only 2 layers but did not use any science vocabulary.
1
You attempted an explanation but still don’t understand.
The Material World
Chapter 2