Across
- 2. States that energy is not create or destroyed, it changes form
- 7. Heat energy
- 8. Combination of two or more elements held together
- 10. A process that alters/changes a one or more physical properties of a substance without changing the chemical properties
- 11. A educated guess at an outcome that is testable question to a problem
- 13. A physical or mathematical representation of a structure
- 17. Anything that has mass and takes up space
- 19. Study focused on discovering how nature works and using that knowledge to describe what happens in nature
- 21. A form of kinetic energy that travels in waves without a medium
- 25. A set of components that are working together in a usual way. Common components are inputs, throughputs and outputs of matter and energy
- 26. Atom with a positive or negative charge
- 27. Type of matter that cannot be broken down into a simpler substance by chemical processing
Down
- 1. When a system is near collapse.
- 3. Results in lower-quality less useful energy
- 4. Process that occurs when an output of matter, energy, or information is fed back into the system as an input which leads to a change in the system
- 5. Combination of two or more of the same, or different, atoms held together through chemical bonds
- 6. States that matter is not created or destroyed, it changes form
- 9. Facts and information
- 12. The ability to do work
- 14. A process that alters the chemical properties of a substance to create something new
- 15. type of energy associated with being stored
- 16. Steps used by scientists to ask questions, gather data, and find solutions
- 18. A well tested and widely accepted description of observations that have been repeated many times in a variety of conditions
- 20. Type of energy associated with motion
- 22. In science this states what will happen in the natural world repeatedly; it does not explain why
- 23. The basic building block of matter
- 24. Atoms that have a different mass number because there is different number of neutrons in the nucleus.