7th grade Science vocabulary

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Unit 1

                                                              

Chapter 1

Section 1

  1. science 
  2. technology

Section 2

  1. scientific method
  2. model
  3. hypothesis
  4. independent variable
  5. dependent variable
  6. constant
  7. control

                                                              

Chapter 2

Section 1

  1. wave
  2. mechanical wave
  3. electromagnetic wave
  4. transverse wave
  5. compressional wave

Section 2

  1. amplitude
  2. wavelength
  3. frequency

Section 3

  1. reflection
  2. refraction
  3. diffraction
  4. interference

                                                              

Chapter 3

Section 1

  1. light ray
  2. medium
  3. electromagnetic wave
  4. reflection
  5. wavelength
  6. frequency

Section 2

  1. law of reflection
  2. focal point
  3. focal length

Section 3

  1. refraction
  2. lens
  3. convex lens
  4. concave lens

                                                              

Chapter 4

Section 1

  1. state of matter
  2. matter
  3.  kinetic theory of matter
  4.  melting point
  5. heat of fusion
  6. freezing point

Section 2

  1. boiling point
  2. heat of vaporization
  3. evaporation
  4. condensation

Section 3

  1. diffusion
  2. pressure
  3. Pascal's principle
  4. density
  5. Archimedes' principle
  6. buoyancy

                                                              

Chapter 5

Section 1

  1. mixture
  2. solution
  3. solute
  4. solvent

Section 2

  1. aqueous
  2. solubility
  3. saturated
  4. concentration
  5. concentrated
  6. dilute

Section 3

  1. acid
  2. base
  3. pH
  4. indicator
  5. neutralization

Unit 2

                                                              

Chapter 6

Section 1

  1. static charge
  2. insulator
  3. conductor
  4. electric discharge

Section 2

  1. electric current
  2. circuit
  3. voltage
  4. resistance

Section 3

  1. Ohm's law
  2. series circuit
  3. parallel circuit
  4. electrical power

                                                              

Chapter 7

Section 1

  1. magnetic domain
  2. magnetism
  3. magnetic field
  4. compass

Section 2

  1. electromagnetism
  2. electromagnet
  3. electric motor
  4. induction
  5. electric generator
  6. transformer

Unit 3

                                                              

Chapter 8

Section 1

  1. weathering
  2. mechanical weathering
  3. ice wedging
  4. chemical weathering
  5. oxidation
  6. climate

Section 2

  1. soil
  2. humus
  3. soil profile
  4. horizon
  5. litter
  6. leaching

                                                              

Chapter 9

Section 1

  1. erosion
  2. deposition
  3. mass movement
  4. slump
  5. creep

Section 2

  1. glacier
  2. plucking
  3. till
  4. moraine

Section 3

  1. deflation
  2. abrasion
  3. loess

                                                              

Chapter 10

Section 1

  1. run off
  2. rill erosion
  3. gully erosion
  4.  sheet erosion
  5. drainage basin
  6. meander
  7. flood plain
  8. delta
  9. alluvial fan

Section 2

  1. groundwater
  2. permeable
  3. impermeable
  4. aquifer
  5. water table
  6. spring
  7. geyser
  8. cave

Section 3

  1. longshore current
  2. beach
  3. barrier island

Unit 4

                                                              

Chapter 11

Section 1

  1. basin
  2. salinity

Section 2

  1. surface current
  2. upwelling
  3. density current

Section 3

  1. wave
  2. crest
  3. trough
  4. breaker
  5. tide
  6. tidal range

                                                              

Chapter 12

Section 1

  1. continental shelf
  2. continental slope
  3. abyssal plain
  4. mid-ocean ridge
  5. trench

Section 2

  1. photosynthesis
  2. chemosynthesis
  3. plankton
  4. nekton
  5. benthos
  6. reef

Unit 5

                                                              

Chapter 13

Section 1

  1. carrying capacity
  2. population
  3.  population explosion

Section 2

  1. landfill
  2. hazardous waste
  3. conservation
  4. composting

Section 3

  1. recyclable

                                                              

Chapter 14

Section 1

  1. photochemical smog
  2. sulfurous smog
  3. acid rain
  4. pH scale
  5. acid
  6. base
  7. Clean Air Act
  8. scrubber

Section 2

  1. Safe Drinking Water Act
  2. Clean Water Act

Unit 6

                                                              

Chapter 15

Section 1

  1. mixture
  2. organic compound
  3. enzyme
  4. inorganic compound

Section 2

  1. diffusion
  2. equilibrium
  3. osmosis
  4. passive transport
  5. active transport
  6. endocytosis
  7. exocytosis

Section 3

  1. metabolism
  2. producer
  3. consumer
  4. fermentation

                                                              

Chapter 16

Section 1

  1. mitosis
  2. chromosome
  3. asexual reproduction

Section 2

  1. sexual reproduction
  2. fertilization
  3. sperm
  4. egg
  5. meiosis
  6. zygote

Section 3

  1. DNA
  2. RNA
  3. gene
  4. mutation

                                                              

Chapter 17

Section 1

  1. hereditary
  2. alleles
  3. genetics
  4. dominant
  5. recessive
  6. Punnett square
  7. genotype
  8. homozygous
  9. heterozygous
  10. phenotype

Section 2

  1. incomplete dominance
  2. multiple alleles
  3. polygenic inheritance

Section 3

  1. sex-linked gene
  2. pedigree
  3. genetic engineering

Unit 7

                                                              

Chapter 18

Section 1

  1. skeletal system
  2. marrow
  3. periosteum
  4. cartilage
  5. joint
  6. ligament
  7. immoveable joint
  8. movable joint

Section 2

  1. muscle
  2. voluntary muscle
  3. involuntary muscle
  4. skeletal muscle
  5. tendon
  6. smooth muscle
  7. cardiac muscle

Section 3

  1. epidermis
  2. melanin
  3. dermis

                                                              

Chapter 19

Section 1

  1. nutrient
  2. carbohydrate
  3. protein
  4. amino acid
  5. fat
  6. vitamin
  7. mineral
  8. food group

Section 2

  1. digestion
  2. enzyme
  3. mechanical digestion
  4. chemical digestion
  5. saliva
  6. peristalsis
  7. chyme
  8. villi

                                                              

Chapter 20

Section 1

  1. atria
  2. ventricle
  3. pulmonary circulation
  4. systemic circulation
  5. coronary circulation
  6. artery
  7. vein
  8. capillary
  9. blood pressure
  10. atherosclerosis
  11. hypertension

Section 2

  1. plasma
  2. hemoglobin
  3. platelet

Section 3

  1. lymphatic system
  2. lymph
  3. lymphocyte
  4. lymph node

                                                              

Chapter 21

Section 1

  1. pharynx
  2. larynx
  3. trachea
  4. bronchi
  5. alveoli
  6. diaphragm
  7. chronic bronchitis
  8. emphysema
  9. asthma

Section 2

  1. urinary system
  2. kidney
  3. nephron
  4. urine
  5. ureter
  6. bladder
  7. urethra

                                                              

Chapter 22

Section 1

  1. neuron
  2. dendrite
  3. axon
  4. synapse
  5. central nervous system
  6. peripheral nervous system
  7. cerebrum
  8. cerebellum
  9. brain stem
  10. reflex

Section 2

  1. cochlea
  2. retina
  3. olfactory cell
  4. taste bud

                                                              

Chapter 23

Section 1

  1. reproduction
  2. testis
  3. sperm
  4. semen
  5. ovary
  6. ovulation
  7. uterus
  8. vagina
  9. menstrual cycle
  10. menstruation
  11. menopause

Section 2

  1. pregnancy
  2. embryo
  3. amniotic sac
  4. fetus

Section 3

  1. infancy
  2. childhood
  3. adolescence
  4. adulthood

                                                              

Chapter 24

Section 1

  1. pasteurization
  2. disinfectant
  3. antiseptic
  4. communicable disease
  5. sexually transmitted disease (STD)

Section 2

  1. immune system
  2. antigen
  3. antibody
  4. active immunity
  5. passive immunity
  6. vaccination
  7. helper T cells

Section 3

  1. noncommunicable disease
  2. cancer
  3. chemotherapy
  4. allergy
  5. allergen