Tell them that they will learn more about potential energy in the next presentation.
They must also complete Worksheet A while they are watching Presentation 1.
Present an overview of energy by using Presentation 1: Energy(slide share). (1 – 7- skip slide 5).
Learner Activity 1
Each learner completes Worksheet A while they are watching Presentation 1.
Teacher to use Worksheet A: Memorandum to mark the learners’ work.
They have to fill in the answers while the teacher pauses at each slide.
Learners are asked to bring food labels to the next Science lesson. (as specified in Worksheet B or other food types that the teacher had chosen).
Teacher Input 2
Enquire about the learners’ favourite food, chocolate, chips, vegetable, meat, etc.
Inform the learners that it is very important to watch what we eat. Tell the learners to take out their food labels.
Present an overview of potential energy by using Presentation 2: Potential energy.
Learner Activity 2
Group the learners to do the following practical activities:
Lifting a brick from the ground; keeping it at different heights; etc.
Push a book from their desk / the teacher’s table.
Carefully releasing an elastic band that they had stretched (aimed at the ground and not at someone / the teacher can do this activity to prevent any problems).
Ask the learners what meat do they like to eat and how big is their portions/ servings.
Small groups (4-5) complete WorksheetB.
Teacher to use Worksheet B: Memorandum to mark the learners’ work.
The groups get an opportunity to compare and discuss whether the food’s nutritional information which are manufactured by different manufacturers, are the same / differs slightly/ differs completely.
Learners must also determine which food has the highest, least and same energy content and give reasons.