Across
- 5. the mass of an object or collection of objects never changes, no matter how the parts are rearranged.
- 8. the way in which a substance, typically a liquid, holds together; thickness or viscosity.
- 10. the process by which heat or electricity is directly transmitted through a substance when there is a difference of temperature or of electrical potential between adjoining regions, without movement of the material.
- 12. the amount of space that a substance or object occupies, or that is enclosed within a container, especially when great.
- 13. an instrument measuring atmospheric pressure, used especially in forecasting the weather and determining altitude.
- 15. any factor that is controlled or held constant in an experiment
- 19. a question that a research project sets out to answer
- 20. the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.
- 21. the quality of being hot; high temperature.
- 25. the available body of facts or information indicating whether a belief or proposition is true or valid.
- 27. the amount of energy a body stored due to its being at a higher temperature than its surroundings
- 28. a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.
- 29. able to be noticed or perceived; discernible.
- 31. the lowest limit of the thermodynamic temperature scale, a state at which the enthalpy and entropy of a cooled ideal gas reach their minimum value, taken as zero kelvins
Down
- 1. the pressure exerted by the weight of the atmosphere, which at sea level has a mean value of 101,325 pascals (roughly 14.6959 pounds per square inch).Also called barometric pressure.
- 2. the intermingling of substances by the natural movement of their particles.
- 3. the quantity of matter in a physical body
- 4. a system or thing used as an example to follow or imitate.
- 6. corresponding in size or amount to something else
- 7. if one variable increases the other will decrease, and if one variable decreases the other will increase
- 9. the quality or state of being natural.
- 11. done without confidence; hesitant.
- 14. the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles which cause ionization
- 16. the scale of temperature in which water freezes at 0° and boils at 100° under standard conditions.
- 17. the degree of compactness of a substance.
- 18. the degree or intensity of heat present in a substance or object, especially as expressed according to a comparative scale and shown by a thermometer or perceived by touch.
- 22. continuous physical force exerted on or against an object by something in contact with it.
- 23. the fact of always behaving or occurring in the way expected.
- 24. a substance which does not readily allow the passage of heat or sound.
- 26. the action of thinking about something in a logical, sensible way.
- 30. state or assert that something is the case, typically without providing evidence or proof.