Across
- 3. The idea that the arrangement of particles determines the observable properties of materials like quartz and glass.
- 7. not matter; released when bonds are formed
- 8. The force that holds atoms together within a molecule like H₂O.
- 9. The higher the temperature of a substance, the more ___ it has.
- 11. A property describing how tightly packed particles are in solids, liquids, or gases.
- 12. A state of matter where particles move freely and spread out to fill the container.
- 14. A particle made of two or more atoms bonded together; determines the properties of substances like water and hydrogen gas.
Down
- 1. A change of state caused by adding or removing energy, such as freezing water in a balloon.
- 2. The movement of thermal energy from warmer objects to cooler ones.
- 4. A measure of the average kinetic energy of particles in a substance.
- 5. A description of how particle spacing influences whether substances float, sink, or compress.
- 6. A state of matter where particles are close together in a fixed structure.
- 10. Two or more atoms connected by a chemical bond
- 13. The smallest unit of an element; too small to see in gases like helium.