Scrap Book Science

Breathing process of human

Excrete and defecate

Importance of excretion :-maintains health-maintains the pH, amount of water and mineral salts-regulates body temperature

Humans response to stimuli

tongue

Excretory organs of animals

Breathing structure of animals

Animal reproduce

Plants reproduce

Plants response to : -touch-water-Sunlight -gravity

How animals protect themselves from extreme weather???

Protection from danger (animals)

Specific characteristics that protect plants

Natural defence in plants : -latex-thick and hard skin/shell-fine hair-thorns-poisonous-bad smell

Measurement

tools : •rope•Match stick•Paper clips

body parts:•Foot•Cubit •Span

•Stride•Arm span

Straight line:•Measuring tape•Ruler

Curved line:•String •Ruler•Measuring tape

Area and volume of solid

Volume of liquid

Mass

• Electronic balance• Beam balance• Compression balance

Time • day• year• decades

• centuries

• 365 days = 1 year• 10 years = 1 decade• 10 decade = 1 centuries

• Pulse

• Wrist watch• Digital stop watch• Digital clock

Materials

Ability of materials to allow light to pass through it

To keep things warm and cool

Rust and non-rusty

How to prevent rusty???-coat with grease & oil-coat with plastic-coat with other metal-coat with paints-cover with plastic or paper

Natural and man-made materials

Reduce, reuse and recycle

Solar system

Other components of solar system

Human limitation

Microorganisms Disease caused by microorganisms : -Mumps-Measles-Chicken pox-AIDS

Fruits dispersal

Producer Secondary consumer

Tertiary consumer

consumerconsumer

consumerProducer

Sources of energy

Forms of energy : -electrical energy-potential energy-Heat energy-Kinetic energy-Light energy-Sound energy

Source of electricity :-dry cell-accumulator-solar cell-hydroelectric power-dynamo-mercury cell

Renewable and non-renewable

Circuit

Series circuit Parallel circuit

Light

• Light travels in a straight line• Light cannot pass through an opaque object• Light can be reflected

• Light source-object (increase) = decrease• Light source-object (decrease) = increase• Object-screen (decrease) = decrease• Object-screen (increase) = increase

Heat

States of matter

Changes states of matter

Acid and alkaline

red blueneutral

constellation

Uses of constellation :1.To indicate time or seasons2.To show direction

Occurrence of day and night

axis

daynight

Phases of the moon

Factors that affect the strength and stability

Animals that live in groups and solitary

Competition among living things

Effect of force :1.Change the shape2.Change the speed3.Stops a moving object4.Move a stationary object5.Change the direction of the moving object

Friction

Movement

• Distance : speed X time• Speed : distance time• Time : distance speed

Food preservation

Harmful effects of improper waste disposal

Eclipse of the moon

Eclipse of the sun

Machine