SCIENCE YEAR 6

MIND MAP

GROUP

SOLITARY

ANTS, LIONS

TIGERS, BEARS

TO AVOID COMPETITION FOR FOOD AND SPACE

FOR SAFETY AND FOOD

IMPACT OF HUMANACTIVITIES

GROUP ANIMALS AND SOLITARY ANIMALS

PROTECTING ENDANGERED

SPECIES

COMPETITION

COMPETE FOR FOOD, WATER,MATE,SHELTER, TERRITORY/SPACEAMONG ANIMALS

AMONG PLANTSCOMPETE FOR SUNLIGHT, WATER, SPACE

EXTINCT ANIMALS

FACTORS

ENDANGERED ANIMALS AND PLANTS

HUMANS ACTIVITIES :ILLEGAL OR EXCESSIVELOGGING,HUNTING, DEVELOPMENT

DINOSOURS, DODOS

ORANG UTAN, TIGER,FAFFLESIA,PITCHER PLANT

WAYS TO PREVENTCAMPAIGN, EDUCATING THE PUBLICS, ENFORCING LAW

INVESTIGATING LIVING THINGS

INTERACTION AMONG LIVING THINGS

DESTRUCTIONS OF THE ENVIRONMENT

ACTIVITIES

● ILLEGAL AND EXCESSIVELOGGING● ILLEGAL AND EXCESSIVE HUNTING● IMPROPER MANAGEMENT OFDEVELOPMENT

EROSION, LANDSLIDES,FLASH FLOODS,WATER POLLUTION,AIR POLLUTION

INVESTIGATING FORCE AND ENERGY

FORCE

FRICTION

EFFECTS

CONCEPT A push or a pull

Can move a stationary object

Cannot be seen but the effects can be felt

Changes the motion of an object

Changes the shapes of an object

Stops a moving object

Changes the direction of a moving object

Makes an object move faster or slower

An object become squeezed, stretched, bent, twisted or squashed

Effects of friction Produces heatOpposes motion

Causes wear and tearSlows down and stops a moving object

Factors that affect friction Condition of the surface

Weight of the object

Disadvantages

Advantages

Ways to reduce friction Use rollers or marbles

Smoothen surfaces

Use oil, wax, grease, talcum powder, air cushion

MOVEMENT

SPEEDCALCULATION OF SPEED

HOW FAST AN OBJECT MOVES

FORMULA :

SPEED = DISTANCETIME

A FASTER OBJECT TRAVELS A LONGER DISTANCEIN A GIVEN TIME

A FASTER OBJECTTAKES A SHORTER TIMETO TRAVEL A GIVEN DISTANCE

UNITS :● km/h● m/s● cm/s

INVESTIGATING MATERIALS

FOOD PRESERVATION

THE IMPORTANCE OF PRESERVIN FOOD

FOOD PRESERVATION

FOOD SPOILAGE

Characteristics of spoilt food

The conditions for microorganisms to grow

Unpleasant smell Changed textureUnpleasant taste MouldyChanged colour

Drying Fish, prawns, cuttlefish, fruits

To make food last longer To reduce wastage of foodTo make food easy to store

Air Suitable temperatureWater Suitable acidityNutrients

Boling

Cooling

Vacuum packing

Pickling

Freezing

Bottling/Canning

Pasteurising

Salting

Smoking

Waxing

Vegetables, fruits

Nuts, crackers, powder milk

Fruits, vegetables

Chicken, meat, prawns, cuttlefish

Meat, fish, fruits, vegetables

Milk, juices, ice cream

Fish, meat, eggs, vegetables, fruits

Vegetables, fruits

Meat, fish

WASTE MANAGEMENT

WAYS OF DISPOSING

WASTE

TYPES OF WASTE

HARMFUL EFFECTS

OF IMPROPERDISPOSALOF WASTE

WASTE THAT CAN DECAY

WASTE THAT DOES NOT

DECAY

SOURCES OF WASTE

PLASTICS, GLASS, CHEMICAL WASTE, ORGANIC WASTE, METAL

HOMES, FACTORIES, AGRICULTURE, MOTOR VEHICLES

PROPER

● DISPOSE OF WASTE IN THE RIGHT PLACE● TREAT WASTE BEFORE DISPOSING OF ITINTO THE DRAIN● BURY WASTE THAT CAN DECAY IN SOIIL● REUSE OF RECYCLE WASTE

IMPROPER

● LITTERING ● OPEN BURNING● RELEASE OR WASTE INTO THE RIVERS● RELEASE OF SMOKE INTO THE AIR

AIR POLLUTION

WATER POLLUTION

SICKNESS & DISEASES

ACID RAIN

FLASH FLOODS

DAMAGES OUR LUNGS, INITIATES OUR EYES

THYPOID, DENGUE FEVER

CAN KILL PLANTS AND ERODE BUILDING

DAMAGE PROPERTY

CAN KILL FISH AND WATER PLANTS

FOOD, PAPER,WOOD

DISADVANTAGE :• GIVES OUT POISONOUS GASES

ADVANTAGE :TO MAKE THE SOIL FERTILE

PLASTICS, GLASS, METAL

Eclipse ofThe Moon Eclipse of

The Sun

ECLIPSE

INVESTIGATING THE EARTH AND THE UNIVERSE

The Earth is between the Sun and the Moon and the three of them lie in a straight line. The Moon is between the Sun and the Earth

and the three of them lie in a straight line.

The Earth blocks sunlight from reaching the Moon

The Moon looks reddish, dark gray or brown

Sunlight is blocked by the Moon

The Moon shadow falls on the Earth surface

Daylight becomes dark during the total eclipse

INVESTIGATING TECHNOLOGY

MACHINES

MACHINE MAKE LIFE EASIER

Made up of more than one simple machine

Crane, lift

Aeroplane, bus

Computer, satelite

Tractor

Lever To carry or move heavy objects easily

Wheel and axle

Pulley

Wedge

Inclined plane

Screw

Gear

To cut or separate objects

To lift heavy objects easier

To fix two objects together

To move objects easily

To carry or move heavy objects easily

To carry or to lift objects to higher place

SIMPLE MACHINES

e.g Wheelbarrow, bicycle, a pair of scissors, fishing rod

To carry, move or lift heavy things more easily

To travel from one place to another

To make work faster

To make communication with people faster and easier

To treat diseases Dialysis machine

COMPLEX MACHINE