LESSON PLAN IN SCIENCE 10
Date: August 22, 2022
I.
Objectives:
At the end of the lesson, students should be able to:
 Identify and plot the given values of volume against pressure at constant
temperature of a gas.
 Solve problems using Boyle’s law equations.
 Appreciate Boyle’s law and cite its practical applications in your daily life.
CODE: S9MT-Ilj-20
II.
Subject Matter
A. Topic:
Boyle’s Law
B. Reference: Baldos, M.P. et. al. (revised Edition 2017). Gas Laws.
Science Links 10. Rex Book Printing Company, Inc., 84-86
P. Florentino St., Sta. Mesa Heights, Quezon City. Page
322-323 and 332.
C. Materials:
Power point presentation, visual aid, laptop, and learner’s
module.
III.
Procedure
A. Preliminary Activities
i. Prayer
ii. Greetings
iii. Health Protocols
iv. Checking of attendance
v. Review
B. Engage
4 Pics 1 Word is a word guessing game. I will present you with four pictures
and then tasks you with guessing what specific word fits with the theme of
the photos presented.
Gases have important fundamental properties that are measurable such as
volume, pressure, temperature, and amount of the gas or number of moles.
C. Explore
Activity 1: Pressure-Volume Relationship at Constant Temperature of a Gas
Procedure:
1. Plot the data in Table 1 on the provided visual aid.
2. Label the graph with Volume (Y-axis), and the pressure (X-axis).
3. Use the following scale in the plotting the data on the graph:
1 cm for every 0.5mL, and 1 cm for every 500 mmHg
Table 1: Boyle’s Pressure-Volume Data
P (mmHg)
500
550
700
1000
1200
1800
V (mL)
2.5
2.2
1.5
0.8
0.6
0.5
D. Explain
As you observed from the graph above, pressure increases with a
decrease in volume. Boyle’s law explains that when pressure increases,
the volume decreases, and if the pressure decreases, the volume increases.
Thus, the relationship between pressure and volume of a gas at constant
temperature is inversely proportional.
The graph of Boyle’s law is known as pressure-volume graph or PV
curve which is hyperbolic in nature.
E. Elaborate
 Lesson Proper about Boyle’s law and its significance
Activity 2: Let’s Compute!
Materials: calculator, pen, and paper
Directions:
Read the given problem. Write the given, find, formula,
solution, and the final answer using Boyle’s law equation:
P1V1 = P2V2
Problem 1:
Suppose a Freon in an air-conditioning unit has a volume of
0.40 liter. It is allowed to function in a room where the pressure
is about 600 mmHg, assuming that the temperature is in a
constant state. Find the final pressure of freon when its volume
is increased to 1.0 liter?
Given:
V1 = 0.40 L
P1 = 600 mmHg
V2 = 1.0 L
Find:
Final Pressure (P2)
Formula:
P2 = P1V1 / V2
Substitution: P =
2
(600 mmHg) (0.40 L)
1.0 L
Final Answer: P2 = 𝟐𝟒𝟎 𝐦𝐦𝐇𝐠
Problem 2:
The inflated balloon that slipped from the hand of Renn has
a volume of 0.50 L at sea level (1.0 atm) and it reached a
height of approximately 8 km where the atmospheric
pressure is approximately 0.33 atm. Assuming that the
temperature is constant, compute for the final volume of
the balloon.
Given:
V1 = 0.50 L
P1 = 1.0 atm
P2 = 0.33 atm
Find:
Final Volume (V2)
Formula:
V2 =
Solution:
V2 =
P1V1
P2
(1.0 atm)(0.50 L)
0.33 atm
Final answer: V2 = 1.52 L
F. EVALUATE
Activity 3: Boyle’s Law in Scuba Diving
Material: Picture of a scuba diver
Directions: Rearrange the jumbled letters inside the parenthesis, then
fill in each blank with a correct answer. Relate each statement to scuba
diving activities.
Diving into deep water is another application of (1) ________
(s’leByo) law. As the diver moves down to the bottom of the water, the (2)
_______ (respseru) increases. Increasing pressure leads to a decrease in
(3) _______ (lovemu), and the divers blood begins to absorb the nitrogen
gas. The opposite happens when the diver starts to rise again, and the
nitrogen gas molecules begin to expand and return to its volume. If the diver
makes a slow rise, the nitrogen gas (4) _________ (lesmolecu) expand and
return to normal without problems, but if it rises quickly, the diver’s blood
turns into foam and the same mess that occurs in soda bottles causes the
diver to bend and feel strong pain. In the worst case, this sudden drop in
body pressure can instantly terminate the diver’s (5) ______ (ifel).
IV.
Assignment
Fill in the table below with the needed information. Write your answers
on a clean sheet of paper.
FUNDAMENTAL
PROPERTIES
Temperature
FORMULA
Constant in Boyle’s law
UNITS
•
Degree Fahrenheit
(0F)
Degree Celsius (0C)
Kelvin (K)
•
•
Initial Pressure (P1)
(1)
Final Pressure (P2)
(2)
Initial Volume (V1)
(3)
Final Volume (V2)
(4)
(5-8)
(9-12)
Prepared by:
JOCEPHINE T. UGAN-AKMAD
Demo-Teacher
Checked by: