Measurement : Measuring Liquids

Subject : 

Basic Science and Technology

Term :

Second  Term

Week:

Week 9

Class :

Basic 4 / Year 4 / Primary 4

 

Previous lesson : 

The pupils have previous knowledge of human body feeding system   in their  previous lesson

Topic :

Measurement : Measuring Liquids

• Materials for measuring liquids
• Metric units for measuring liquids ml, cl, dl, litre, etc
• Measuring the volume of liquids
• Improvise a measuring cylinder

 

Behavioural objectives :

At the end of the lesson, the pupils should be able to

• Identify materials for measuring liquids;
• enumerate the metric units of volume;
• measure liquids accurately;
• improvise a measuring cylinder with
  estimated scales for volumes in metric
  units.
• Students will be able to identify the materials used to measure liquids.
• Students will be able to describe the different metric units used to measure liquids.
• Students will be able to measure the volume of liquids using a measuring cylinder.
• Students will be able to improvise a measuring cylinder using a plastic bottle with a narrow neck.

 

 

Learning Activities :

Pupils write down the materials
used for measuring liquids.

• Class brainstorm on the metric units
  of volume.
• Pupils in small groups measure
  liquids accurately in turns by using
  measuring cylinders, graduated jars
  and cups and record their
  measurement correctly.

Embedded Core Skills 

• Communication and Collaboration
• Student Leadership skills and Personal Development
• Creativity and Imagination
• Critical thinking and problem solving

Instructional Materials :

• Measuring cups
• Measuring cylinders
• Plastic bottles with narrow necks
• Water, food coloring, and other liquids for measuring
• Whiteboard and markers
• Worksheets

 

 

Methods of Teaching :

• Class Discussion
• Group Discussion
• Asking Questions
• Explanation
• Role Modelling
• Role Delegation

 

Reference Materials :

• Scheme of Work
• Online Information
• Textbooks
• Workbooks
• 9 Year Basic Education Curriculum
• Workbooks

 

Content :

Hello! Measuring liquids is an important part of science and everyday life. We often need to measure liquids when we’re cooking, mixing drinks, or conducting science experiments.

To measure liquids, we use special tools called measuring cups or measuring cylinders. These tools help us to accurately measure the amount of liquid we need.

There are several units of measurement that we can use to measure liquids. These units include milliliters (ml), centiliters (cl), deciliters (dl), and liters (L).

Milliliters are the smallest unit of measurement for liquids. They are often used to measure small amounts of liquids, such as medicine. For example, if you need to take 5 ml of cough syrup, you can use a measuring spoon to measure out the right amount.

Centiliters and deciliters are larger units of measurement. They are often used to measure liquids for cooking or baking. For example, if you need to add 50 cl of milk to a recipe, you can use a measuring cup to measure out the right amount.

Liters are the largest unit of measurement for liquids. They are often used to measure larger amounts of liquids, such as the amount of water in a swimming pool.

Now, let’s talk about how to measure liquids using a measuring cylinder. A measuring cylinder is a tool that is used to measure the volume of liquids. It looks like a tall, thin glass with a spout at the top.

To use a measuring cylinder, you first need to pour the liquid into the cylinder. Then, you should make sure that the cylinder is on a flat surface, so that the measurement is accurate. Finally, you should read the measurement from the scale on the side of the cylinder.

If you don’t have a measuring cylinder, you can improvise one using a plastic bottle with a narrow neck. You can mark the bottle with a marker to show the different units of measurement, such as milliliters or centiliters.

So there you have it, measuring liquids is an important skill and now you know the different units of measurement and how to use a measuring cylinder to accurately measure liquids

There are several units of measurement that we can use to measure liquids, such as milliliters (ml), centiliters (cl), deciliters (dl), and liters (L).

• Milliliters are used to measure small amounts of liquids, like medicine or essential oils.
• Centiliters and deciliters are used for cooking and baking, to measure ingredients like milk or water.
• Liters are used for larger amounts of liquids, like the volume of a swimming pool.

To measure liquids using a measuring cylinder, we need to follow these steps:

1. Pour the liquid into the cylinder.
2. Make sure the cylinder is on a flat surface so the measurement is accurate.
3. Read the measurement from the scale on the side of the cylinder.

If we don’t have a measuring cylinder, we can improvise one using a plastic bottle with a narrow neck. We can mark the bottle with a marker to show the different units of measurement, such as milliliters or centiliters.

In summary, measuring liquids is important in many aspects of our lives. We use different units of measurement and tools to measure liquids, and we can improvise a measuring cylinder using a plastic bottle with a narrow neck

Evaluation

1. What is the smallest unit of measurement for liquids? a) Kiloliters b) Deciliters c) Centiliters d) Milliliters
2. What is the largest unit of measurement for liquids? a) Milliliters b) Centiliters c) Deciliters d) Liters
3. Which tool is commonly used to measure the volume of liquids? a) Measuring spoon b) Measuring cylinder c) Measuring tape d) Ruler
4. Which of the following units is used to measure small amounts of liquids? a) Milliliters b) Deciliters c) Liters d) Kiloliters
5. Which of the following units is used to measure large amounts of liquids? a) Milliliters b) Deciliters c) Liters d) Centiliters
6. What is the most important step to ensure an accurate measurement of liquid volume? a) Pouring the liquid carefully b) Choosing the right measuring tool c) Using the appropriate unit of measurement d) Ensuring that the measuring tool is level and on a flat surface
7. Which of the following is an improvised tool that can be used to measure liquids? a) Ruler b) Measuring cylinder c) Measuring cup d) Plastic bottle with a narrow neck
8. What unit of measurement is often used to measure the volume of milk or cream in a recipe? a) Milliliters b) Deciliters c) Liters d) Centiliters
9. Which of the following is a common reason for measuring the volume of liquids in science experiments? a) To make sure the liquid is safe to drink b) To see how the liquid reacts with other substances c) To check the color of the liquid d) To make the liquid taste better
10. What is the importance of being precise when measuring liquids? a) It ensures that the recipe or experiment turns out correctly b) It makes the liquid taste better c) It prevents spills and accidents d) It helps us save money by using less liquid.

 

 

Lesson Presentation

Introduction (5 minutes): The teacher will introduce the topic of measuring liquids, explaining that it is an important skill in science and everyday life. The teacher will ask the students if they have ever measured liquids before and what tools they used.

Materials and Units of Measurement (10 minutes): The teacher will present the materials used to measure liquids, such as measuring cups, measuring cylinders, and plastic bottles with narrow necks. The teacher will explain the different units of measurement used to measure liquids, such as milliliters, centiliters, deciliters, and liters. The teacher will use the whiteboard and markers to write down examples of each unit of measurement and their corresponding abbreviation.

Measuring the Volume of Liquids (15 minutes): The teacher will demonstrate how to measure the volume of a liquid using a measuring cylinder. The teacher will pour water into the cylinder and show the students how to place the cylinder on a flat surface, and how to read the measurement from the scale on the side of the cylinder. The teacher will ask the students to practice measuring the volume of water using a measuring cylinder and a measuring cup.

Improvise a Measuring Cylinder (10 minutes): The teacher will explain how to improvise a measuring cylinder using a plastic bottle with a narrow neck. The teacher will show the students how to mark the bottle with a marker to show the different units of measurement, such as milliliters or centiliters. The teacher will ask the students to practice improvising a measuring cylinder using a plastic bottle with a narrow neck.

Conclusion (5 minutes): The teacher will ask the students to summarize what they have learned about measuring liquids. The teacher will distribute worksheets for the students to complete, where they will measure the volume of different liquids and write down their measurements using the appropriate units of measurement. The teacher will review the worksheets and provide feedback.

Assessment: The teacher will assess the students’ understanding of measuring liquids based on their ability to measure the volume of liquids using a measuring cylinder and improvising a measuring cylinder using a plastic bottle with a narrow neck. The teacher will also assess the students’ ability to use the appropriate units of measurement when measuring liquids on their worksheets.

 

Weekly Assessment /Test

1. The smallest unit of measurement for liquids is _______.
2. The largest unit of measurement for liquids is _______.
3. A tool used to measure the volume of liquids is a _______.
4. The appropriate units of measurement to measure small amounts of liquids are _______.
5. The appropriate units of measurement to measure large amounts of liquids are _______.
6. When measuring the volume of liquids, it is important to ensure that the measuring tool is _______.
7. An improvised tool that can be used to measure liquids is a _______.
8. Centiliters are often used to measure the volume of _______ in a recipe.
9. Measuring the volume of liquids is an important skill in science and _______.
10. When measuring liquids, it is important to be _______ to ensure accurate results.