Vocabulary
planet, solar system, Earth , Mars, Jupiter, Saturn, Neptune, Uranus, Mercury, Venus, moon, rotate, Galileo, astronomical, sun, gas giant, satellite, moon, rotation, revolution, model, waxing, waning, gibbous, crescent, phases, new moon, solar system, galaxy, universe, space, star, red giant star, supergiant, supernova, blue hypergiant, orange giant, Sun, Earth, moon, planet, light-year, light-speed, telescope, hydrogen, gas, sphere, environment, ecosystem, endangered, species, population, overfishing, chemical change, physical change, mixture, soluble, solution, dissolve, properties, matter, homogeneous, states of matter, solid, liquid, gas, sifting, filtering, magnet, residue, force, friction, motion, energy, magnetic force, transferred force, contact force, force, friction, motion, energy, magnetic force, transferred force, contact force, Meteorologist, Barometer, Wind vane, Anemometer, Thermometer, Rain gauge, Weather, Wind, Cirrus, Cumulus, Cumulonimbus, Stratus, group, survival, predator, prey, protect, pack, defend, adaption