Upload
leena
View
28
Download
0
Tags:
Embed Size (px)
DESCRIPTION
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
Citation preview
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