Laboratory Report
Format
You will have the option of either handwriting or typing your lab
reports.
You will be graded on the following:
1. Accuracy of results
2. Written conclusion
3. Format-See slide 5
4. Title page-see slide 4
Each lab is worth 40 pts. A missing lab report will result
in a grade of “U” in work habits.
7 step format
All labs will follow a 7 step format.
1. Purpose: State Science standard & Objective are listed in one or two
sentences.
2. Background: All related information concerning the standard/objective. This
includes all vocabulary, formulas, lab tools and procedures necessary to
complete the lab.
3. Materials: A list of all lab tools used in the lab.
4. Hypothesis: A prediction of what you think will happen.
5. Procedure: Numbered sentences explaining what was done for each step in the
lab.
6. Results: A table or chart placed on a SEPARATE PAGE with numerical data
from measurements made and recorded during the lab.
7. Conclusion: A brief written summary or answers to questions of why your
Typing/Writing Format
Margins: should be 1” all the way around, double spaced. If you do not know
how to set your margins I can show you.
Font: Palatino, Geneva, or Times.
Size: 10, 11, or 12 pt.
Format Examples
Purpose: The purpose of this lab is to measure and record the density of
various solids and liquids. This lab exercise is designed to assist students
in the mastery of state science standards 8a, 8b, and 8d.
Background: Density is a very important measurement in science. It is useful
to determine the identity of various forms of matter. The density of a substance
is acquired by
Each of the 7 section titles is underlined in bold print.
Left margin is justified at 1”, no indentation.
Double space between
each line.
Title Page
16-18 pt. font
12 pt. font
Density Lab
Name
Date
Period
Title should be 1/3 from
Top of page
Name, date, period should
Be 1/3 from bottom of page
Purpose & Standard: The purpose of this lab was to accurately measure
the density of regular and irregular solid objects to determine if they were buoyant
or not. Data was obtained using measurements of mass and volume from various
lab techniques. Standard 8b: Students will know how to calculate the density of
substances from measurements of mass and volume. (copy this exactly)
Background: Density is a very important measurement in science. It is
useful to determine the identity of various forms of matter. The density of a
substance is acquired by dividing the mass of that substance by its volume. The
formula to calculate density is D=m/v. The mass of an object is the
amount of matter it contains. Mass is measured in grams with a beam
balance.
Paragraph 2 (background
Paragraph 3 (background)
Materials: Balance, graduated cylinder, beaker, pipet, overflow can, red bolt,
plastic square, rubber stopper, cork stopper, metal cylinder, golf ball, tile plate,
wood cylinder, metal square, rock sample.
Hypothesis: Predict whether each item will sink or float.
Red bolt
________
Plastic square
________
Rubber stopper
________
Cork stopper
________
Tile Plate
________
Rock Sample
________
Golf Ball
________
Metal Cylinder
________
Wood Cylinder
________
Metal Square
________
Procedure:
1. Red Bolt & Marble: We filled the graduated cylinder to exactly 50 mL. We used
the dropper to make sure we were accurate. Placing the red bolt in the graduated
cylinder we waited until the water level increased.
Results
Item
Mass
Volume
Density
Block “A”
39 g
57 cm3
.68 g/cm3
Rock
212g
88 cm3
2.40 g/cm3
Metal cube
125g
15.6 cm3
8.01 g/cm3
Block “B”
20.1g
8 cm3
2.51 g/cm3
Results should be in table form with all measurements labeled in the
proper units. Use the tab key to align columns with data.
Conclusion
This will a paragraph to explain the following:
•Was your hypothesis correct?
•What errors were made during the lab?
•What was learned from the results?