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Switches

The Science Site Posted on March 16, 2016 by Michael CurtisApril 6, 2016

Switches  SPDT    Reed switch     Relays      Circuit symbols     Simple circuits A normal switch is often called a SPST (or Single Pole Single Throw) switch Symbol for a SPST (Single Pole Single Throw)  switch:          Switch OPEN………. current cannot flow … Continue reading →

Units of Measurement

The Science Site Posted on April 7, 2015 by Michael CurtisFebruary 23, 2017

Every measurement has to have a value and a unit. The value is the number you have measured The unit shows us what you have been measuring   Quantity Unit Method of measurement Distance Metre (m) Centimetre(cm) Use a metre … Continue reading →

The Earth in Space

The Science Site Posted on April 7, 2015 by Michael CurtisFebruary 23, 2017

The Sun is at the centre of the solar system and provides all our energy, The Earth is a planet in orbit around the Sun (path of the orbit shown by the blue line). The Moon is a satellite in … Continue reading →

Magnetism

The Science Site Posted on April 7, 2015 by Michael CurtisOctober 20, 2016

Magnetism If a substance is attracted to a magnet it is said to be magnetic. A magnetic substance must contain iron, cobalt or nickel. Magnets have two poles. The north seeking pole (N) and the south seeking pole (S). The … Continue reading →

Circuits

The Science Site Posted on April 7, 2015 by Michael CurtisApril 6, 2016

Ammeters and current    Circuit Symbols     Switches Whenever an electric current flows when we must have a complete circuit. The components in a circuit are represented by symbols   The battery (or cells) push the electricity around the circuit. The wires … Continue reading →

Energy

The Science Site Posted on April 7, 2015 by Michael CurtisMarch 16, 2016

Energy is needed to any useful job of work. This means if something is capable of helping you do some work it must have energy eg a wound up spring or a piece of coal coal. Energy is measured in … Continue reading →

Light and Sound

The Science Site Posted on April 7, 2015 by Michael CurtisOctober 28, 2021

Light and sound are made of WAVES. They are both forms of ENERGY. Light travels much faster than sound. This is why the flash of lightening is seen long before the sound of thunder is heard, even though they are … Continue reading →

Pressure

The Science Site Posted on April 5, 2015 by Michael CurtisFebruary 23, 2017

Pressure is defined as force per unit area. The pressure exerted by a force tells us concentrated the force is . Pressure is calculated as : PRESSURE = FORCE ÷ AREA The UNITS of pressure we use are newtons per … Continue reading →

Forces

The Science Site Posted on April 5, 2015 by Michael CurtisOctober 12, 2021

A force is any kind of PUSH or PULL. The unit of force is the newton (N). A force can be measured using an instrument called a force meter (sometimes called a newton meter or spring balance) Using a force … Continue reading →

Measurement

The Science Site Posted on April 5, 2015 by Michael CurtisMarch 16, 2016

Table of units of measurement There are three fundamental units of measurement: MASS DISTANCE TIME Mass The mass of an object tells us how heavy it is. Mass is measured in kilograms (kg) or in grams (g) (This means that … Continue reading →

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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

ADAPTION
AIR
AIR PRESSURE
AIR RESISTANCE
ALGAE
ALIMENTARY CANAL (gut)
ALKALI
ALUMINIUM
AMMETER
AMNION
AMPHIBIANS
AMPLITUDE
ANNELIDS
ANTAGONISTIC MUSCLES
ANTHER
ARACHNIDS
ARTERIES
ARTHROPODS
ASEXUAL REPRODUCTION
ATOM
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BACTERIA

BALANCED DIET
BLADDER
BLOOD
BLOOD VESSEL
BOIL
BOILING POINT
BRAIN
BUNSEN BURNER
BURN
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CAPILLARIES

CARBOHYDRATE
CARBON
CARBON DIOXIDE
CARNIVORE
CELL (biology)
CELL (physics)
CELL MEMBRANE
CELL WALL
CHANGE STATE
CHARACTERISTIC
CHEMICAL CHANGE
CHEMICAL REACTION
CHLOROPLASTS
CHLOROPHYLL
CHORDATES
CHROMATOGRAPHY
CIRCUIT SYMBOLS
COELENTERATES
COLD-BLOODED
COMBUSTION

COMMUNITY
COMPOUND
CONDENSE
CONSUMER
COPPER
CRUSTACEANS
CRYSTALLISATION
CURRENT
CYTOPLASM
.
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DAY

DECOMPOSE
DECOMPOSE

DECOMPOSER
DENSITY
DIAPHRAGM (bio)
DIFFUSION
DIGESTION
DIODE
DISEASE
DISTILLATION
DISTILLATE
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E
AR
ECLIPSE
ECOLOGY
ECOSYSTEM
EGG DUCT
ELEMENT
EMBRYO
ENDOSKELETON
ENERGY
Law of conservation of energy:
ENVIRONMENT
ENZYME
EVAPORATION
EXERCISE .
EXOSKELETON
EYE
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FALLOPIAN TUBE

FERMENTATION
FERTILIZATION (Human)
FERTILIZATION (Plants)
FILAMENT (bio)
FILAMENT (physics)
FILTER (light)
FILTER (chem)
FILTRATE
FILTRATION

FISH
FLOWER
FLOWERING PLANTS
FOOD CHAIN
FOOD WEB
FORCE
FOSSIL FUEL
FREQUENCY

FRICTION

FRUIT
FULCRUM
FUEL
FUNGI
FUSE
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GALAXY

GAMETE
GAS
GERMINATION
GERMINATION PERIOD
GESTATION PERIOD
GILLS
GRAPHITE
GREENHOUSE EFFECT
GRAVITY
GUT
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HABITAT
HEART
HEART RATE
HERBIVORE
HORMONE
HOST
HYDROCARBON


IMMISCIBLE
IMPERMEABLE
INSECTS
INSOLUBLE
INSULATOR
IRREVERSIBLE CHANGE
INVERTEBRATES


KEEPING HEALTHY

KIDNEY
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LARGE INTESTINE

LDR
LEAVES
LEVER
LEVER LAW
LIEBIG CONDENSER
LIFE CYCLE
LIFE PROCESSES
LIGAMENT
LIGHT RAY
LIQUID
LIME
LIVER
LUMINOUS
LUNGS
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MALLEABLE

MAGNET
MAGNETIC FIELD

MAMMALS
MASS
MENISCUS
METAL
MICRO-ORGANISM
MINERAL
MITOCHONDRION
MIXTURE
MOLECULE .
MOLLUSCS
MOON

MOSS
MUSCLE
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NON-METAL
NUCLEUS (biol)
NUTRIENT


OMNIVORE

OPAQUE
ORE
ORGAN
ORGANISM
OVARY (plants)
OVARY (animals)
OVULES
OVUM
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PARALLEL CIRCUIT

PARASITE
PENIS
PERMEABLE
PETALS
pH SCALE
PHOTOSYNTHESIS
PHYLUM
PITCH
PLACENTA
PLANET
PLANT
POLLINATION
POOTER
POPULATION
PRECIPITATE
PREDATOR
PREY
PRESSURE
PRODUCER

PROTEIN
PROSTATE GLAND
PROTOZOA
PUBERTY
PULSE
PURE
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QUADRAT


REACTION
REDUCE
REDUCING AGENT
RELAY
REFLECTION
REFRACTION
REPTILES
RESIDUE
RESISTANCE
RESISTOR
RESPIRATION
ROOT
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SAPROPHYTE
SATELLITE

SATURATED SOLUTION
SOLUBLE
SCAVENGER
SEPALS
SERIES CIRCUIT
SEPARATING MIXTURES

SEXUAL REPRODUCTION
SHORT CIRCUIT
SKELETON
SKIN

SMALL INTESTINE
SOLID
SOLUTE
SOLUTION
SOUND
SPEED
SPERM
SPERM DUCT
STAMEN
STAR

STATES OF MATTER
STEM
STIGMA
STOMACH
STYLE
SUSPENSION
SWITCH
SYNTHETIC
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TEMPORARY CHANGE

TEMPERATURE
THERMOMETER
THORAX
TESTIS
TOP CARNIVORE
TRACHEA
TRANSLUCENT
TRANSPARENT

TRANSPIRATION
TULLGREN FUNNEL
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UMBILICAL CORD

UNIVERSE
URETER
URETHRA
UTERUS


VACUOLE

VACUUM

VARIATION
VEINS
VERTEBRATES
VIRUS
VITAMIN
VOLTAGE
VOLTMETER
VOLUME (sound)
VOLUME (units)
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WARM-BLOODED

WATER
WATER CYCLE
WEIGHT
YEAR
YEAST fermentation)


ZYGOTE
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Contact:
Mike Curtis.
email:
mikecurtis@btinternet.com

 

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