Introduction

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Introduction. Mr Elijah Ong and Ms Izzati. Simple background. Rules and expectations. Pay attention when teacher is talking Hand in homework on time, if not demerit marks will be given. No copying of work. If found, zero marks will be given - PowerPoint PPT Presentation

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Introduction

Mr Elijah Ong and Ms Izzati

Simple background

Rules and expectations• Pay attention when teacher is talking• Hand in homework on time, if not demerit marks

will be given. • No copying of work. If found, zero marks will be

given• Be responsive and raise questions when necessary.

Raise your hand when asking a question. • No doing of other subject’s work during lesson.

Finally

Lesson should be fun and meaningful! You

should learn something out of it!

Biological Molecules

Nutrients and Water!

Previous lessons

• Cells and structures• Osmosis and diffusion

Objectives for today

1. State and explain the general need for food in organisms

2. State the general properties of water3. Identify the roles of water in living organisms.4. Identify the needs to conserve water

Water and us?

Why do we need food?

What do HP and robots need in order to operate?

Chemical Energy

Electrical Energy

What do humans need in order to operate? (Running, chatting, playing games etc)

Chemical Energy

Heat/ electrical

Energy

Other functions of food? Other than providing energy?

Growth

Regeneration By providing the necessary raw

materials

What are nutrients

• Nutrients are chemical substances in food that provide energy and materials needed by the body.

Carbohydrates

Proteins

Fats

Water

Functions of water

Game Time!

Win Lose or Draw!!

Instructions:

Group 1 vs Group 2

Group 3 vs Group 4

Draw on the board and guess the list of words given!

Time: 5 mins

Objective:Come out with a list of words which describes how water is used by

humans/animals/plants and let another group

guess it!

Time: 5 mins

Functions of water in the body

ACCC

Allows Transportation

Components of cells Cooling

Chemical Rxn

Some functions of water in plants

Maintain turgidity

Dehydration

Dehydration

Water is a precious natural resources

Water pollution/ scarcity

Going beyond

• What if we found water in other planets???

Let’s watch a video on this….

What have we learned today?Biological Molecules

Nutrients

Energy Raw materials

Repair/Growth

Water

Functions

Transport Cooling Chemical

RxnComponents of cells

Biological Molecules

Nutrients

Energy Raw materials

Carbohydrates

Proteins Fats

Repair/Growth

Water

Functions

Biological Molecules

Nutrients(Organic)

Water(Inorganic)

Functions

Transport Cooling Chemical

RxnComponents of cells

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