Elementary
Essential Lab
Mass, Volume, & Density
Science Capacity Development & School Reform Accountability
Presenter: Annmarie Dilbert
Agenda
• Lab Norms
• Bellringer
• Sunshine State Standard
• Engage - BrainPOP
• Explain – Background Knowledge
• Explore - Lab
• Elaborate
• Evaluate
• Gizmo
Lab Norms
1. Be responsible.
2. Follow ALL instructions carefully.
3. Please avoid touching any equipment,
chemicals, or other materials in the laboratory
area until you are instructed to do so.
4. Avoid eating food, drinking beverages, or
chewing gum in the laboratory.
5. Dress properly during a laboratory activity :
safety goggles, lab coats, long hair tied back,
no sandals, no dangling jewelry.
Gummy Bear Lab
Florida Sunshine State Standard Benchmark:
SC.A.1.2.1
The student will determine that the properties of
materials (e.g., density and volume) can be compared
and measured (e.g., using rulers, balances, and
thermometers)
Additional Florida Sunshine State Standard Benchmarks:
SC.H.1.2.1: The student knows that it is important to keep accurate records and
descriptions to provide information and clues on the causes of discrepancies in
repeated experiments.
SC.H.1.2.2: The student knows that a successful method to explore the natural world
is to observe and record, and then analyze and communicate the results.
SC.H.3.2.4: The student knows that through the use of science processes and
knowledge, people can solve problems, make decisions, and form new ideas.
Bellringer
ENGAGE
BrainPOP
http://www.brainpop.com/science/matterandchemistry/measuringmatter/
EXPLAIN: Background Knowledge
• Characteristics that help to identify or
classify matter are called properties. All
matter has both physical properties and
chemical properties.
Physical properties can be seen without
changing the identity of the matter.
*Below is a list of some common physical
properties of matter.
Density
• Density is the physical property that will be
learned in this lab. It is a characteristic of
matter that is constant and never changes.
• Density is a measure of the amount of matter
in a certain amount of space.
Look at this illustration of density:
• The cubes are both the same size. However, the
cube on the left has more particles in it than
the cube on the right. This means that the
cube on the left has a higher density than the
cube on the right because there are more
particles in the same amount of space.
Calculating Density
Density may be calculated if the mass
and volume of a material is determined
by dividing the mass by the volume.
(D = m ÷ V)
Team Jobs
Team Jobs
Objective:
The student will apply the scientific process
to problem solve by observing, recording,
analyzing, and communicating results to
compare and measure density.
Purpose:
To apply the scientific process to problem solve
by observing, recording, analyzing, and
communicating results to compare and measure
density.
Materials:
• 50 mL of red liquid in a bottle
• 50 mL of blue liquid in a bottle
• 50 mL of green liquid in a bottle
• Graduated cylinder
• Calculator
• Triple-beam balance or scale
• 3 different colors of pencils or crayons
Hypothesis
(write in your own as an IF…..THEN…. statement)
If we find the mass and volume of 3
different liquids, then we will
_____________________________________.
EXPLORE
Procedures
1. On the triple-beam balance, calculate the mass
of the empty graduated cylinder and record
this mass in the data collected section of the
experiment.
2. Pour 10 mL of the red liquid into the
graduated cylinder. Be sure to bring your “eye”
down to the level of the liquid and read the
bottom of the meniscus.
3. Determine the mass and record the mass
after subtracting the mass of the graduated
cylinder.
Procedures
4. Calculate the density of the liquid by dividing
the mass by the volume.
5. Add another 10 mL to the cylinder (there is
now a total of 20 mL of red liquid).
6. Determine the mass and record the mass
minus the mass of the graduated cylinder.
Procedures
7. Find the density again by dividing the mass by 20
mL and record it on the Data Table.
8. Keep adding 10 mL of the red liquid, recording the
mass and calculating the density until a total of 50
mL of the red liquid has been used.
9. Return the liquid to the bottle.
10. Repeat the procedure for each of the other
liquids, finding mass and density.
Collecting Data
• Data is the information gathered during an
experiment. Sometimes data involve counting
or measurements such as length.
• Data that involves numbers or measurements
should be organized in a table. Once the data
has been collected from the experiment, it must
be analyzed, or a decision about what the data
means is drawn.
Data Collected (Red Liquid)
Volume(mL)
10.0 mL
20.0 mL
30.0 mL
40.0 mL
50.0 mL
Mass of
Liquid (g)
Density
(g/mL)
Data Collected (Blue Liquid)
Volume(mL)
10.0 mL
20.0 mL
30.0 mL
40.0 mL
50.0 mL
Mass of
Liquid (g)
Density
(g/mL)
Data Collected (Green Liquid)
Volume(mL)
10.0 mL
20.0 mL
30.0 mL
40.0 mL
50.0 mL
Mass of
Liquid (g)
Density
(g/mL)
Graphing
• Sometimes calculations need to be completed.
In addition, a graph may need to be compiled.
A graph helps people to understand the data
and gives viewers a picture of the data. A
conclusion about what was learned from the
experiment can then be drawn from the
analyzed data.
Graph the mass on the y-axis (up the side) and the
volume on the x-axis (across the bottom) for each liquid
on the graph paper to the right of the table. Use a
different color for each of the liquid solutions.
Conclusion
A conclusion is an explanation
based on evidence from
observations. It answers, “Does the
data support the hypothesis?”
Conclusion
1. As the mass increases, what happens to the
volume of each
sample?___________________________
_______________________________
2. Examine your density calculations for the red
liquid. Should the density be the same in each
instance? Explain your answer.
________________________________
________________________________
_______
Conclusion
3. If an object floats in water, what can you tell
about its density?
________________________________
________________________________
________________________________
What if it sinks?
________________________________
__________________________
Communicating Results
Now your results need to be
communicated to others. This allows you
to evaluate and understand the
experiment. It also allows others to
duplicate the experiment to see if any
mistakes were made in the experiment
itself, the calculations, or analysis.
ELABORATE
How do your results compare to those of
your classmates?
Share and discuss.
EVALUATE
The density of water is 1.0 g/cm3. An object that
has a density less than the density of water will
float.
Which of the following materials will float in
water?
A. gold: density of 19.3 g/cm3
B. corn oil: density of 0.9 g/cm3
C. aluminum: density of 2.7 g/cm3
D. steel: density of 7.8 g/cm3
Gizmos
www.explorelearning.com
Science Capacity Development Team
Cristian Carranza, Science Manager
cristian.carranza@palmbeach.k12.fl.us
Shari Bremekamp
bremekamp@palmbeach.k12.fl.us
William Rizzo
rizzow@palmbeach.k12.fl.us
Crystal Clark
clarkcr@palmbeach.k12.fl.us
Adrian Seepersaud
seepersaud@palmbeach.k12.fl.us
Annmarie Dilbert
dilbert@palmbeach.k12.fl.us
Amie Souder
souder@palmbeach.k12.fl.us
Christel Leahy
christel.leahy@palmbeach.k12.fl.us
Heather Trapani
trapanih@palmbeach.k12.fl.us
Terrence Narinesingh
narinesingh@palmbeach.k12.fl.us
Robera Walker
robera.walker@palmbeach.k12.fl.us
Kirk Nieveen
kirk.nieveen@palmbeach.k12.fl.us
Paul Wojciechowsky
wojciep@palmbeach.k12.fl.us
Andrea Reilly
reilly@palmbeach.k12.fl.us