Quarter 2 Science Vocab Words

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Across
  1. 1. A substance formed when two or more elements are chemically bonded together in a fixed ratio, with properties different from those of its constituent elements.
  2. 3. A tabular arrangement of elements based on their atomic number, electron configuration, and chemical properties, organized into rows (periods) and columns (groups).
  3. 4. A substance composed of atoms with the same number of protons, characterized by its unique chemical properties and represented by its atomic symbol.
  4. 7. The sum of kinetic energy and potential energy in a system; it represents the energy associated with the motion and position of objects.
  5. 9. A process in which one or more substances (reactants) are converted into different substances (products) through the rearrangement of atoms.
  6. 12. A group of atoms held together by covalent bonds, representing the smallest unit of a compound that retains its chemical properties.
  7. 13. The basic building block of matter, consisting of a nucleus containing protons and neutrons, with electrons orbiting around it.
  8. 14. The transfer of thermal energy between objects due to a temperature difference; it flows from regions of higher temperature to regions of lower temperature.
  9. 16. Material or substance used to reduce the transfer of heat, sound, or electricity; it helps to maintain temperature and conserve energy.
Down
  1. 2. The energy stored in an object due to its position or state, such as gravitational potential energy or elastic potential energy.
  2. 5. A symbolic representation of the composition of a compound, indicating the types and numbers of atoms present in a molecule using element symbols and subscripts.
  3. 6. The energy possessed by an object due to its motion; it depends on the mass and velocity of the object.
  4. 8. The force of attraction that holds atoms together in a molecule or compound, formed by the sharing, transfer, or attraction of electrons.
  5. 10. A type of chemical bond formed by the sharing of electrons between atoms, resulting in the formation of a molecular compound.
  6. 11. A type of chemical bond formed by the transfer of electrons from one atom to another, resulting in the formation of ions with opposite charges that are attracted to each other.
  7. 15. The ability to do work or cause change; it exists in various forms such as kinetic, potential, thermal, electrical, and chemical energy.