• History
    Study of the past.

    Paper Money, Hieroglyphs, Digital Books, Calendar, Moses, Pharaoh's Mummy, Haman, Karnak Temple, Pharaoh, Flight, Noah, Pompeii, North, Petra, Ubar, Crucifixion, Door Locks, Alphabet, Deities, Skydiving.

  • Zoology
    Animal science.

    Raptors, Spider Web, Ants, Honey Bees, Colonies, Animal Languages, Mosquito, Crow, Nocturnal Animals, Housefly, Fossils, Camels.

  • Geology
    Study of the Earth.

    Coal, Landslides, Mountains, Internal Waves, Earth, Pumice, Tectonics, Sinkhole, Volcano, Minerals, Subduction, Fault Lines, Earthquake, Soil Expansion, Internal Mountains, Aftershocks.

  • Biology
    Science of living organisms.

    Honey, Fats, Hypoxia, White Hair, Fear, Keraunoparalysis, Evolution, Fasting, Breastfeeding, Bacteria, Magnetoreception, Alzheimer's.

  • Physiology
    Functions of organs.

    Reading, Brainstem, Cholesterol, Inner Ear, Cataracts, Vision, Milk, Brain Functions, Eye Pupil, Fingerprints, Skin Nerves, Eardrum, Bedsores, Perspiration.

  • Embryology
    Science of prenatal development.

    Fetal Development, Miscarriage, Meiosis, Human Embryo, Gender, Human Senses, Womb, Amniotic Fluid, Sperm, Bones.

  • Botany
    Science of plants.

    Gardens, Pollination, Fluorescence, Antioxidants, Photosynthesis, Frost, Plant Stress, Fig, Nutrient Cycle.

  • Chemistry
    Science of elements and compounds.

    Viscosity, Superionic Water, Volcanic Gases, Acid Rain, Bones, Steam Explosions, Pyramids, Hydrogen, Water Stratification, Cloud Seeding, Pompeii, Rust, Celsius, Pyritized Fossils.

  • Cosmology
    Science of the origin and evolution of the universe.

    Shape Of Universe, Age Of Universe, Seven Heavens, Big Bang, Expanding Universe, Sound Waves, Isotropy, Primordial Smoke, Galaxy Filaments, Dark Energy, Equivalence Principle, Red Shifting, Time Dilation, Spacetime, Gravity, Wormholes.