periodic table hydrogen oxygen nitrogen helium carbon calcium silicon sulfur iodine compound hydrocarbon derivative alchemy
petroleum (oil) petroleum products crude oil refine gasoline methane solution dissolve solvent solubility cohesive adhesive atom nucleus electron neutron proton molecule particle ion
particle accelerator
catalysis （复数catalyses）catalyst artificial synthetic
synthetic fiber polymer
polymerization plastic dye
cosmetics
8 PHYSICS physics mechanics
thermodynamics acoustics
electromagnetism optics dynamics force velocity
acceleration equilibrium statics motion inertia gravitation relativity gravity vibration
medium (media) frequency wavelength pitch intensity echo
resonance sonar
ultrasonics electricity
static electricity magnetism magnet
electromagnet magnetic field electric current direct current (DC) alternating current (AC) electric circuit electric charge electric voltage electric shock electric appliance
5
conductor insulator
semiconductor battery (cell) dry battery storage battery electronics electronic
electronic component (part) integrated circuit chip
electron tube vacuum tube transistor amplification amplify amplifier oscillation optical
optical fiber lens convex concave microscope telescope magnifier spectrum ultraviolet X rays X Gamma rays γ infrared rays microwaves dispersion transparent translucent opaque
9 mathematics mathematician arithmetic calculation calculator abacus numeral
sum
total (sum total) aggregate fraction decimal digit
percentage addition plus
subtraction minus
multiplication
multiplication table multiply time power square division divide algebra quantity equation formula root
geometry geometric dimension parallel
quadrilateral square area rectangle polygon cube volume sphere circle
ellipse (oval) cone
circumference diameter radius triangle angle
6
degree calculus
differential calculus integral calculus function probability statistics quantitative qualitative
deduction (inference) induction
10 agriculture (farming) agricultural land (soil)
soil conservation soil erosion silt clay clod agrarian
pilot (experimental ) harrow( rake) ridge furrow
plot （patch） ranch plantation orchard nursery seedbed sickle spade shovel pick tractor
cultivate (till) sow(seed) harvest weed irrigate
manure(fertilizer) spray
insecticide(pesticide)
pest rust
grain (cereal)
granary(grain store) mill wheat corn rice barley sorghum oats rye millet vegetable horticulture hydroponics
greenhouse(glasshouse, hotbed) cabbage lettuce mustard spinach broccoli cucumber eggplant pepper pumpkin tomato beet carrot radish pea soybean celery garlic leek onion potato peanut sesame cotton
husbandry (animal husbandry) pasture livestock
fowl (poultry)
7
cattle buffalo
dairy (dairy cattle) dairy farm hay
haystack fodder (feed) trough barn(shed) stable cowshed
pigpen (hog pen, pigsty) sheepfold (sheep pen) roost (hen house) fish farm aquaculture
11 ANIMAL Darvinism
natural selection class order family genus suborder species invertebrate vertebrate aquatic( life) reptile
amphibian (amphibious animal) dinosaur bird
extinction mammal primates insect
antenna (复数 antennae) larva
camouflage pest worm hibernate lizard
chameleon regeneration turtle beast
domesticate
predatory (carnivorous ) predator prey
scavenger migrate wing bill beak nest dolphin whale bat gorilla
chimpanzee habitat rodent primate plankton mollusk coelenterate shrimp prawn lobster crab clam sponge coral starfish canary chirp squeak porpoise sloth slothful hygiene sanitation parasite moth caterpillar
8
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