Topic
Acids and Bases Experiments
Date
February 27, 2025
Grade
4 Pool 2
Duration/week
1hour 30 minutes
Description
Students will carry out simple practical activities
Lesson Objectives
CXC CSEC Chemistry Syllabus – Effective from 2015
Section A – Principles of Chemistry
Specific Objectives 1.1
1. investigate the reactions of nonoxidising acids; Reactions of acids with
metals, carbonates, hydrogen carbonates, bases. Refer to SO C1.2,
C5.3.
2. investigate the reaction of bases with ammonium salts;.
Specific
Behavioural
Objectives
Blended Approaches
By the end of the lesson students should be able to:
1. Review appropriate safety rules for carrying out experiments
2. Review how to write the components of a lab report with emphasis
on the discussion, conclusion and reflection of the experiments
3. Create videos or take pictures of experiments carried out
Project-Based Blended Learning – the model in which the student uses both
online learning—either in the form of courses or self-directed access—and
face-to-face instruction and collaboration to design, iterate, and publish
project-based learning assignments, products, and related artifacts.
Inside-Out Blended Learning - experiences are planned to ‘finish’ or ‘end up’
beyond the physical classroom, but still require and benefit from the unique
advantages of both physical and digital spaces
(Blended Learning Universe, (2020).
Subject Integration
Science
- Chemistry – Physical and Chemical properties of acids, bases,
salts
- Biology - uses of acids, bases, salts in biochemical systems
Technology - Use of phones to record pictures/videos of the activities
Reading
- Reading the instructions to carry out the experiments
Engineering - Designing and carrying out experiments by improvising using
different material and apparatus found in the home
Art
- draw and label different apparatus used to carry out the
activities
Mathematics - Determining the pH as a number and matching colours for
different household chemicals
Writing and balancing the different equations
The 4Cs of
Education
Critical thinking
Discussion of the acid and bases reactions, calculations and analysis of data
Communication
Writing up the lab report
Collaboration
Working and discussing with peers as well as showing the class examples of
activities carried out
Creativity
Methods of presentation including song, poetry, drama, talk-show
programme etc
Real World
Applications
- Acids, bases and salts reactions/uses in environment, food industry, medical
field and engineering
- Different ways to use indicators to test chlorine in swimming pools, test
urine for sugar and protein, acid rain on the environment, bath salts, Epsom
salts and Andrew’s salts.
Vocabulary
acid, base, salt, alkali, acidity, basicity, strong acid and weak acid, strong base
and weak base, dissociation, acid anhydride, indicator, pH scale,
hydroxonium/hydronium ion, hydroxide ion, effervescense
Instructional
Power points with information on acids, bases and salts
Material
:
Carry out experiments on the action of acids, make and test base (ammonia
gas)
Lambert, N., Mohammed, Marine, Remy, Cheryl, Mason, Louise. (2007).
Heinemann Chemistry for CSEC, Revised Edition. Pearson Education, England.
Chapters 1-4
Williams, E. (201620). Chemistry Simplified Series – An Introduction to
Chemistry – Revised WorkBook. Speedy Prints Limited.
)
Procedure
FACE2FACE /ONLINE SYNCHRONOUS/ASYNCHRONOUS
Engage
Students will be engaged in a pre laboratory talk on the execution of the
method and their expected results.
Explore
(Face 2 Face)
Students will retrieve their laboratory manuals and read and carry out the
different tasks that are asked of them.
Explain
Students will explain the importance of the different tests carried out writing
equations where necessary
Elaborate
Students will carry out the experiments and research to assist with the
discussion
Evaluate
Students will discuss, conclude and reflect on the experiment, highlighting
the importance in everyday life
Evaluation 2/
Reflection