# Measuring the Volume of Liquids | Standard Units of Volume | Measuring Liquid in Millilitre (ML), Centilitre (CL) and Litre (L) Primary 4 (Basic 4) Term 2 Week 8 Basic Science and Technology

### BASIC SCIENCE

BASIC SCIENCE AND TECHNOLOGY

SECOND TERM

WEEK 8

PRIMARY 4

THEME – MEASUREMENT

PREVIOUS KNOWLEDGE – Products of Technology | Makings of Technology Primary 4/Basic 4 Term 2 Week 7 Basic Science

**TOPIC: MEASURING LIQUIDS **

** LEARNING AREA **

1. Introductory Activities

2. Instruments for Measuring Liquids

3. Graduated Instruments for Measuring Liquids

4. Metric Units of Volume

5. Improvising A Measuring Cylinder

6. Lesson Evaluation and Weekly Assessment (Test)

**PERFORMANCE OBJECTIVES**

By the end of the lesson, most of the pupils should have attained the following objectives –

1. identify materials used for measuring liquid.

2. state the metric unit of volume.

3. measure amounts of liquids accurately using graduated measuring cylinders, cups or jars.

4. improvise a measuring cylinder with estimated scales for volumes in metric system.

**ENTRY BEHAVIOR **

The pupils can identify some of the materials used for measuring liquid like palm oil, groundnut oil,, etc.

**INSTRUCTIONAL MATERIALS**

The teacher will teach the lesson with the aid of measuring cylinders of different sizes, water, other liquids e.g. kerosene, oil, etc., empty jam jars, rulers, strips of paper, pens, notebooks, coke bottles, juice drink packs.

**METHOD OF TEACHING **

Choose a suitable and appropriate methods for the lessons.

Note – Irrespective of choosing methods of teaching, always introduce an activities that will arouse pupil’s interest or lead them to the lessons.

**REFERENCE MATERIALS**

Lagos State Scheme of Work

9 – Years Basic Education Curriculum

Course Book

All Relevant Material

Online Information

**CONTENT OF THE LESSON **

### LESSON 1 – INTRODUCTION

There are many instruments that’s used to measure the volume of liquid in our community.

The common instruments used for measuring liquids are as follows:

1. Cylinder

2. Cups

3. Jug, etc.

VOLUME OF A LIQUIDThe volume of liquid is the amount of liquid in a container.

The volume of liquid is usually measured by using a graduated cylinder, cups or jug.

THE METRIC UNITS OF VOLUMEThe standard metric units of volume are as follows:

1. liter (L)

2. Centilitre (CL)

3. Millilitre (ML)

The liter (L) is the basic metric unit for measuring liquid volume.

Centilitre and milliliter (mL) are the metric units to measure liquid in very small containers.

### LESSON 3 – MEASURING OF LIQUID (PRACTICAL)

Teacher guides pupils to measure volume of liquids using:

1. graduated cylinder, cup and jug.

2. non graduated cylinder, cup and jug.

3. compare the results of 1 and 2.

IMPROVISING METRIC UNITS FOR MEASURING CYLINDER, CUP AND JUGMaterials Needed –

- White transparent cylinder, cup and jug

- Ruler

- Strip of paper

- Pen

- Pencil

- Gum or white transparent sellotape

- Water (recommended)

STEPS FOR IMPROVISING MATRIC UNITSSTEPS

1. Graduate the strip of paper.

2. Cover the strip of paper with sellotape both back and front to protect the strip of paper.

3. Fasten the strip of paper on the empty cylinder, cup and jug.

MEASURING THE VOLUME OF LIQUID (WATER) USING IMPROVISED INSTRUMENT FOR MEASURING LIQUID1. Pour some water inside the cylinder, cup or jug.

2. Read and record the volume of water.

3. Compare the the results with the graduated cylinder and jug.

### LESSON 3 – **THE RELATIONSHIP BETWEEN METRIC UNIT OF VOLUME **

The volume of liquid is measured in cl, ml and liter.

Liter is greater than centilitre and millilitre while centilitre is greater than millilitre as shown below:

100cl = 1 liter

1000ml = 1 liter

10ml = 1cl

Change the following to their equivalent units:

1. 50cL

50cL= 500mL = 0.5L

2. 100cL

100cL = 1000mL = 100L

3. 150cL

150cL = 1500mL = 1.5L

4. 1L

1L = 100mL = 1000mL

5. 2.5L

2.5L = 250cL = 2500m

**PRESENTATION**

To deliver the lesson, the teacher adopts the following steps:

1. To introduce the lesson, the teacher revises the previous lesson. Based on this, he/she asks the pupils some questions;

2. Teacher organizes pupils in groups or pairs.

3. Teacher provides each group or pair with different measuring cylinders, cups and jugs graduated jars and cups.

4. Teacher asks to compare similar cylinder, cup and jug with one another and also against others. For example, cylinder to cylinder, cylinder to cup and jug.

Pupil’s Activities – Compare different cylinder, cup, jug, etc. with one another.

5. Teacher provides bucket of water for the ascertain their comparison and describe.

Pupil’s Activities – Use water to support and describe the activity 4.

6. Teacher uses the pupil’s responses to introduce the lesson measuring the volume of liquids.

Pupil’s Activities – Participate actively in lesson introduction to understand the concept of measuring the volume of liquid.

7. Teacher uses appropriate charts to guide pupils in groups or pairs to measure the volume of water using graduated cylinder, cup or jug using their appropriate metric unit.

8. Teacher also guides pupils to measure liquid non graduated cylinder, cup and jug.

Pupil’s Activities – Measure the volume of liquids using graduated and non graduated cylinder, cup or jug compare and describe the accuracy.

9. Teacher leads pupils in groups or pair to improvise different measuring cylinders, cups or jugs with estimated scales.

10. Teacher allows pupils to measure the volume of liquid using improvised measuring cylinder, cup or jug, record and compare with graduated ones.

Pupil’s Activities – Improvise and calibrate measuring cylinders with scales estimated in metrics units. Find equivalent volumes of market measures using standard calibrated instruments.

11. Teacher uses the measurement with appropriate metric units to discuss the relationship between the metric units.

13. Teacher guides pupils in groups or pairs to convert metric unit to one another.

14. Teacher displays written volume of content in common soft drinks and juice drink packs (e.g. coke 35cl).

Pupil’s Activities – Finds out volumes of soft drinks and juice drinks on their packs.

15. Summarizes the lesson on the board.

Pupil’s Activities – Participate actively in the lesson summary and write as instructed.

**CONCLUSION**

- To conclude the lesson for the week, the teacher revises the entire lesson and links it to the following week’s lesson.

**LESSON EVALUATION**

Teacher asks pupils to –

1. measure amounts of liquids accurately using graduated measuring cylinders.

2. state 3 instruments used to measure liquids.

3. identify and state the metric units of the instruments mentioned in question 2.

4. mention the metric units of volume.

5. list 4 other liquids apart from water.

6. state 2 conditions that can affect the accuracy of the measurement of liquid.

7. describe how to make an improvised measuring cylinder,cup or jug.

8. improvise a measuring cylinder with estimated scales in metric system.

9. change the following to its equivalent metric unit:

- 35cL = ______ L

- 5L = ______ mL

- 100mL = ______ cL

- 1L = ______ mL