Across
- 4. the energy of an object that is due to the object’s motion
- 6. a measure of how hot (or cold) something is; specifically, a measure of the average kinetic energy of the particles in an object
- 7. the amount of force exerted per unit area of a surface
- 8. the energy transferred between objects that are at different temperatures
- 9. anything that has mass and takes up space
- 10. The attractive force that holds atoms or subunits of atoms together
- 13. heat transfer in liquids and gases as particles circulate in currents
- 15. a substance that cannot be separated or broken down into simpler substances by chemical means
- 16. the state of matter in which the volume and shape of a substance are fixed
- 17. a form of matter that does not have a definite volume or shape
- 18. the smallest unit of an element that maintains the properties of that element
- 19. the state of matter that has a definite volume but not a definite shape
- 20. transfer of heat through space in the form of waves
Down
- 1. the process by which one or more substances change to produce one or more different substances
- 2. the change of a substance from one physical state to another
- 3. the energy that an object has because of the position, condition, or chemical composition of the object
- 5. the total kinetic energy of a substance's particles
- 7. an arrangement of the elements in order of their atomic number such that the elements with similar properties fall in the same column or group
- 10. heat transfer through a substance or from a substance to another by direct contact
- 11. a measure of the amount of matter in an object
- 12. the ratio of the mass of a substance to the volume of the substance
- 14. any natural material that is used by humans, such as water, petroleum, minerals, forests, and animals