1. Aim: How do we measure the mass, volume and density of a pebble, metal bar and cork? OBJ: Given abstract form, graph paper and notebook paper SWBAT measure the mass, volume and density of a pebble, metal bar and cork using a balance, ruler and graduated cylinder with 70% accuracy DN: Hand-in iPad contract; take out white lined paper ACT: Write a college style lab report (including problem, hypothesis, materials, procedure, experimentation, results/conclusion, abstract). HW: Complete college style lab report on MVD of a pebble, cork and metal bar (due tomorrow). Study for Exam. 7th Grade: Lab Skills, 9/24; 8th Grade: Matter, 9/30

2. FINDING THE MASS
Of the pebble, metal bar and cork (grams) Don’t forget to calibrate the balance !!!

3. ←80 mL Density = Mass (TB balance) Volume (ruler, grad cylinder)
Grad. Cylinder g/mL
Ruler g/cm³
←80 mL
USE METRIC ONLY !!!!!!
Used to find volume of:
1) pebble
2) cork
Used to find volume of:
1) Metal bar

4. COLLEGE STYLE LAB REPORT
Problem: State a question to be solved.
Hypothesis: educated guess
Materials: equipment used
Procedure: Steps taken to solve problem.
Experiment: data table, graph
Results/Conclusion: What did you learn/discover? (See data table, graph) Does the graph show a direct, inverse, cyclic, static relationship?
Abstract/Summary: Briefly explain . . .
Why was lab done?
State steps/experiments done.
What did you find/learn/discover? (Be specific)

5. ABSTRACT FORM State three science concepts that you learned based on this lab: WRONG STATEMENTS 1. I learned about mass and how to calculate mass. 2. I learned about volume and how to find volume. 3. I learned about density and how to calculate density. CORRECT STATEMENTS: 1. I learned that mass is the amount of matter (atoms) in a substance and it is measured using a balance (unit: grams). 2. I learned that volume is the space an object occupies and for cubic/ rectangular solids we use a ruler where V = LxWxH; for irregular objects (cork, pebble) we use a graduated cylinder (water displacement method) to find volume I learned that density is the amount of mass divided by the amount of volume; it represents the internal atomic arrangement of atoms in a substance

6. When the bell rings, have a good dayYO