4a's Lesson Plan

Republic of the Philippines
Department of Education
Region II – Cagayan Valley
Schools Division of Cagayan
PAMPLONA District
DAVID M. PUZON MEMORIAL NATIONAL HIGH SCHOOL
4A’s Lesson Plan in Science 10
Objective: To investigate the relationship between volume and pressure at constant

temperature of a gas under the DepEd Philippines K to 12 Curriculum Guide.
Topic: Gas Laws
Code: S10MT -IIj -20 Grade Level: Grade 10
Subject: Science
Date & Time: May 22, 2023, 10:00 AM – 11:00 AM
(1) Review:
 Begin the lesson by reviewing the concepts of volume, pressure, and temperature.
 Ask students to recall their prior knowledge of the gas laws, specifically Boyle's Law.
(2) Motivation:
 Show a short video or conduct a demonstration that illustrates the effects of pressure
on a gas.
 Engage students in a discussion about everyday examples of gas pressure.
(3) Activity:
 Divide the class into small groups and provide each group with the following
materials:
o A syringe or a plastic bottle with a cap
o A pressure gauge or a pressure sensor
o A ruler or a measuring tape
o A data table for recording measurements
 Instruct the groups to perform the following steps: a. Set the pressure gauge to zero
or calibrate the pressure sensor. b. Fill the syringe or bottle with a fixed amount of
gas (e.g., air). c. Measure the initial volume of the gas and record it in the data table.
d. Apply pressure to the gas by compressing the syringe or tightening the bottle cap.
e. Measure the final volume of the gas and record it in the data table. f. Repeat the
experiment with different amounts of pressure.
 After the activity, encourage students to discuss their findings and observations as a
class.
(4) Analysis:
 Guide students in analyzing the data collected during the activity.

 Help them identify the relationship between volume and pressure at constant
temperature.
 Discuss the concept of an inverse relationship between volume and pressure
(Boyle's Law).
(5) Abstraction:
 Introduce the mathematical equation that represents Boyle's Law: P1V1 = P2V2.
 Explain how changes in pressure and volume are related through this equation.
(6) Application:
 Provide students with a real-life problem related to the objective, such as: "A scuba
diver is descending into the ocean. How does the pressure change as the diver goes
deeper, and what happens to the volume of the air in the scuba tank?"
 Instruct students to apply their understanding of Boyle's Law to solve the problem
and explain their reasoning.
(7) Assessment:
 Present the following questions related to the objective:

1. True or False: According to Boyle's Law, as the volume of a gas decreases,
its pressure increases.
2. If the volume of a gas is halved while the temperature remains constant, what
happens to its pressure? a) It doubles b) It quadruples c) It remains the same
d) It decreases by half
3. Fill in the blank: Boyle's Law states that the product of the initial pressure and
volume is equal to the ________ pressure and volume.
4. Which gas law describes the relationship between volume and pressure at
constant temperature? a) Boyle's Law b) Charles's Law c) Gay-Lussac's Law
d) Avogadro's Law
5. Explain why a balloon shrinks when it is placed in a vacuum chamber.
 Provide the answers to the assessment questions.
(8) Assignment:
 Assign the following homework to reinforce the lesson:

o Research and write a short essay on the applications of Boyle's Law in
everyday life.
o Solve additional problems related to Boyle's Law from the textbook or other
resources.
Questions and Answers:
1. True or False: According to Boyle's Law, as the volume of a gas decreases, its pressure
increases. Answer: True
2. If the volume of a gas is halved while the temperature remains constant, what happens to its
pressure? Answer: a) It doubles
3. Fill in the blank: Boyle's Law states that the product of the initial pressure and volume is equal
to the ________ pressure and volume. Answer: final
4. Which gas law describes the relationship between volume and pressure at constant
temperature? Answer: a) Boyle's Law
5. Explain why a balloon shrinks when it is placed in a vacuum chamber. Answer: When a
balloon is placed in a vacuum chamber, the external pressure decreases, causing the gas
inside the balloon to expand. As the gas expands, the volume of the balloon increases,
resulting in the balloon shrinking.
Prepared by:
ROWENICK A. GUIMMAYEN
Subject Teacher Checked & Noted:
REDANTE B. MARIANO
School Principal II

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Republic of the Philippines

4A’s Lesson Plan in Science 10

Objective: To investigate the relationship between volume and pressure at constant

Topic: Gas Laws

Code: S10MT -IIj -20 Grade Level: Grade 10

Date & Time: May 22, 2023, 10:00 AM – 11:00 AM

 Guide students in analyzing the data collected during the activity.

 Present the following questions related to the objective:

 Assign the following homework to reinforce the lesson:

Questions and Answers:

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