Across
- 5. - A state of matter with no definite shape or volume, where particles move freely.
- 6. - A subatomic particle with no electrical charge (neutral) found in the nucleus of an atom.
- 8. - The mass of an object or substance per unit volume.
- 11. - A measure of the average kinetic energy of particles in a substance.
- 13. - The degree of closeness between a measured value and the true value.
- 18. - Molecules composed of two atoms of the same or different elements bonded together.
- 19. - The force of gravity acting on an object's mass.
- 20. - The amount of space occupied by an object or substance.
- 23. - A subatomic particle with a negative charge (-1) that orbits the nucleus of an atom.
- 25. - The process of adjusting or standardizing a measuring instrument to ensure accuracy.
- 28. - Energy levels or electron orbitals that surround the nucleus of an atom.
- 29. - A state of matter with a definite volume but no definite shape, where particles can flow.
- 32. - A measure of the amount of matter in an object, typically expressed in kilograms or grams.
- 33. - The number of bonds an atom can form with other atoms, often related to the number of electrons in its outermost shell.
- 34. - A state of matter with a definite shape and volume, characterized by closely packed particles.
- 35. - Having a uniform composition throughout, without distinct regions.
- 36. - The same definition as mentioned earlier, a measure of the amount of matter in an object.
- 37. - The smallest unit of matter consisting of a nucleus (protons and neutrons) surrounded by electrons.
- 39. - A system of measurement using units like meters, kilograms, and liters.
- 40. - The process of changing units or forms of measurement.
- 41. - The degree of exactness or repeatability in a measurement.
Down
- 1. - A distinct form or state of matter, such as solid, liquid, or gas.
- 2. - A combination of substances that are physically mixed together but not chemically bonded.
- 3. - Different forms of an element with the same number of protons but varying numbers of neutrons.
- 4. - The emission of radiation from an unstable atomic nucleus, often resulting in the transformation of one element into another.
- 7. - Having an uneven or non-uniform composition with distinct regions.
- 9. - Relating to particles and processes that occur within atoms, such as electrons, protons, and neutrons.
- 10. - The central core of an atom, containing protons and neutrons, and possessing a positive charge.
- 12. - Pertaining to individual atoms or their properties.
- 14. - A property of particles that can be positive (+) or negative (-) and determines their interactions with other charged particles.
- 15. - A specific region within an electron shell where electrons are likely to be found.
- 16. - Pertaining to the meaningful or important digits in a measurement or calculation.
- 17. - A type of matter with uniform properties and composition throughout.
- 19. - A mathematical function that describes the behavior of particles in quantum mechanics.
- 21. - A high-energy state of matter consisting of charged particles.
- 22. - A subatomic particle with a positive charge (+1) found in the nucleus of an atom.
- 24. - Relating to the composition, structure, and properties of substances and their transformations.
- 25. - A substance formed by chemically combining two or more different elements.
- 26. - A substance composed of atoms with the same number of protons, thus sharing chemical properties.
- 27. - A characteristic or attribute of a substance or material.
- 30. - The same definition as mentioned earlier, a substance composed of atoms with the same number of protons.
- 31. - An atom or molecule that has gained or lost electrons, resulting in a net electrical charge.
- 38. - Anything that has mass and occupies space, including solids, liquids, gases, and plasma.