UNIT 1: Light   

Light, Transmits, reflection, absorption, refraction, diffraction, photon, opaque, transparent, translucent, scatters           

 

 

UNIT 2: Contact Forces

 Collision, damage, motion, energy transfer, force, contact force, matter, friction, newton, mass, kinetic energy, potential energy, speed, acceleration, inertia, net force, balanced force, unbalanced force

 

Unit 3: Sound

 vibration, frequency, amplitude, wavelength, pitch, medium, trough, crest, sound wave

 

Unit 4: Forces at a distance

Magnet, magnetic force, electric charge, field, electric current, electromagnetism, gravitational field

 

Unit 5: Earth's Place in the Universe

Atom, molecule, compound, crystal, solar nebula, protoplanetary disk, astronomical unit, light year, universe, galaxy, ellipse, geocentric model, heliocentric model, orbit, telescope, asteroid, gravity, satellite, phase, solar eclipse, lunar eclipse, revolution, rotation, seasons

 

 

Unit 6: Cells

organism, unicellular organism, multicellular organism, cell, organelle, biotic factor, abiotic factor, mitochondria, cell wall, cell membrane, chloroplasts, golgi bodies, nucleus, ribosomes, endoplasmic reticulum (smooth and rough), lysosomes, cytoplasm, vacuole

 

 

Unit 7: Ecosystems

Matter, Producer, consumer, decomposer, energy pyramid, food web, herbivore, carnivore, omnivore, prey, predator, competition, symbiosis, community, population, species, ecosystem, pollution, habitat destruction, per capita consumption