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Chemistry Density Dry Labs (Guided Inquiry)

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Product Description
Density Dry Labs
These are student-centered, guided inquiry dry labs. Dry lab lessons are great for: emergency substitute lesson plans, prelabs to a wet labs, make-ups for missed wet labs, alternative lab assignments for absent students.

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Texas Chemistry Standards (TEKS)
C.2.B: The student is expected to know that hypotheses are tentative and testable statements that must be capable of being supported or not supported by observational evidence.
C.2.E: The student is expected to plan and implement investigative procedures, including asking questions, formulating testable hypotheses, and selecting equipment and technology…
C.2.F: The student is expected to collect data and make measurements with accuracy and precision.
C.2.G: The student is expected to express and manipulate chemical quantities using scientific conventions and mathematical procedures, …
C.2.H: The student is expected to organize, analyze, evaluate, make inferences, and predict trends from data.
C.2.I: The student is expected to communicate valid conclusions supported by the data through methods such as lab reports,…graphs,…summaries…

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Lesson Summary:
These guided inquiry dry labs enable students to develop and practice lab related process and critical thinking skills without being in a wet lab environment. There are two density related dry labs included in this product.

Density Dry Lab 1:
This is a basic density lab involving water displacement. Students investigate whether the size of a particular substance affects its density. They create a hypothesis and test the hypothesis by calculating the density of three samples of the same substance. Students use illustrations of mass and graduated cylinder scales to record mass and volume data. They then determine the density of each object using the density formula. They conclude that the density of a substance is always the same regardless of the size of the sample.

Density Dry Lab 2:
This is a more advanced density lab involving measurement with a ruler and graphing. Students investigate whether there is a periodic trend in density as you move down the Group 3 elements. Students use illustrations of mass and ruler scales to record mass and volume data. They then determine the density of each object by graphing their data and calculating the slope of a line. They conclude that the density of the Group 3 elements increases as you move down the periodic table.

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Learning Objectives (Bloom’s Revised Taxonomy):
Remembering: Define and explain density.
Understanding: Explain how: 1) how density can be calculated by dividing mass by volume. 2) how density can be calculated from a line graph of mass and volume data.
Applying: Demonstrate: 1) that density is not affected by changing the size of a substance. 2) that density values trend as you move down the Group 3 elements in the periodic table.
Analyzing: Calculate density: 1) when given mass and volume; 2) when given a graph of mass and volume data.
Evaluating: Determine possible sources of lab error.
Creating: Create a scatter plot of mass/volume data and draw a “best fit” line through the data.

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• Cover page (1 page)
• Guided inquiry dry labs (16 pages)
• Guided inquiry dry lab answers(16 pages)
• Teacher notes (2 pages)
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Kendo's Chemistry Store
Total Pages
35 pages
Included
Teaching Duration
50 minutes
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\$3.75
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