QuickTime™ and a TIFF (LZW) decompressor are needed to see this picture. Science Notebook Layout DON’T COPY UNDERLINED TEXT Mrs. Aguirre’s Webpage: http://www.quia.com/profiles/caguirre Density of Solids Introduction to Density Which weighs more, a pound of feathers or a pound of bricks? Explain. Data Table: 25 2 4 Density describes how much mass is in a given volume of a material. Mass is measured by a scale in grams . Volume can be measured by a technique called displacement . Item Observations Item Observations Aluminu m PVC Copper Steel Oak Pine Lead Brass Acrylic For each item, write two observations- one qualitative and one quantitative. Under the chart, make a list: How they are similar: How they are different: Volume Mass Observations (color, texture, size, etc) Density calculation: Density = Mass/Volume = ___g/ ___mL = ____g/mL We think this object is : _____ because… 1. Describe the objects- color, etc 2. Measure Mass with scale in grams . 3. Use the displacement method to find the volume in mL . 4. Graph your data on graph paper. Draw trend line. 5. Calculate the item’s density in g/mL.*** (slope of line- average) 6. Use the chart to try to identify what the item is.
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Science Notebook Layout DON’T COPY UNDERLINED TEXT Mrs. Aguirre’s Webpage: Density of Solids Introduction to Density.
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Density of Solids Introduction to DensityWhich weighs more, a pound of feathers or a pound of
bricks? Explain.Data Table:
2524
Density describes how much mass is in a given volume of a material.Mass is measured by a scale in grams.Volume can be measured by a technique called displacement.
Item Observations Item Observations
Aluminum PVC
Copper Steel
Oak Pine
Lead Brass
Acrylic
For each item, write two observations- one qualitative and one quantitative. Under the chart, make a list:
How they are similar: How they are different:
Volume Mass Observations (color, texture, size, etc)
Density calculation: Density = Mass/Volume
= ___g/ ___mL = ____g/mL
We think this object is : _____ because…
1. Describe the objects- color, etc2. Measure Mass with scale in grams.3. Use the displacement method to find the volume
in mL.4. Graph your data on graph paper. Draw trend line.5. Calculate the item’s density in g/mL.*** (slope of
line- average)6. Use the chart to try to identify what the item is.
Why do you think the hypothesis was correct or not ?
What variables did you have to control to make it a fair test?
Graph of Data
My job: _________Problem:Does increasing the mass of a car make it go down a ramp
faster? Skip 1 lineHypothesis:If we increase the mass of the car, it will …………….
Skip 1 lineProcedure:1. Ramp- which hole?2. Photogates- where? A,B?, interval?3. Clay4. Roll car 3 times to get similar time (0.001 accuracy)5. Add weight?Experimental Variable: Weight of car
Measurements have two parts: the number and the unit.
– The number or quantity answers the questions, “How much?” or “How many?”
– The unit is the way the number is measured.
Make a detailed drawing of the ramp:
Tape in WS 1B
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QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
QuickTime™ and a decompressor
are needed to see this picture.
Use 10Lines
•Label photogates correctly "A" & "B".•Show wires hooked up to timer correctly (color red or blue)(Use Red for A and Blue for B•Draw cars going through photogates, tell what happens to timer.•Below picture: Answer questions with a paragraph:•1. Should timer be set for "stopwatch" or "interval"? Why?•2. Which lights should be on, A, B, or both? Why?•3. Describe what will happen to time when a car rolls down
Conclusion: What was the best ring flyer design and why?Paragraph needs to include:
Topic sentence and conclusion• Answer the question• Supporting data (averages)• Why do you think the change worked or didn’t ? What variables that were hard to control may have
interfered?
Ringed Flyer LabDefine“best flight”. Is it the longest distance? Greatest time or something
else?Explain why. I think best flight is….. Because…..(use only two lines)
list your observations to summarize your results. (at least 5)
Include labeled diagram of design.
New Question: What can we change about the flyer to improve its flight?
What is it about squeezing the bottle that suddenly makes something that floats sink?
7. Write a new question and hypothesis involving the air in the diver. What combination of air and water is best to make a cartesian diver sink and float easily? Can you make a diver out of other materials?
Cartesian Diver
1. Question: What makes the diver go up and down?
Skip 1 line
2. Hypothesis: The magnet attracts the diver and makes it sink. Skip 1 line
3.Record basic observations of the behavior of the diver.
Record at least three questions about the diver.
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We know Questions
Use no more than 7 lines
4. Was hypothesis correct?
5. Write and draw out your explanation of how the diver works
use the rest of the page- put a box around your drawing and explanation