Across
- 1. When hot air rises, allowing cooler air to come in
- 5. the distance covered by an object in a certain time
- 7. the force acting on an object due to gravity
- 8. equal to 0 on the kelvin scale and as of now is just a theory
- 10. a state of matter with no definite shape or volume
- 11. a push or a pull
- 14. the flow of electrical power or charge
- 15. degree of hotness or coldness measured by a thermometer
- 16. energy energy done with movement
- 17. a subatomic particle with negative energy
- 21. a measure of the amount of matter contained in an object
- 23. a subatomic particle with positive energy
- 24. another word for a strong smell
- 26. when kinetic energy transfers to one another by touching eachother
- 27. sum of all forces acting on an object
- 29. the rate of change
Down
- 2. a subatomic particle with no energy
- 3. all matter is made of up of tiny particles which cant be seen called atoms
- 4. 0 degrees Celsius or 32 degrees Fahrenheit
- 6. energy that comes from the sun and causes sunburns
- 9. a group of 2 or more atoms which form the smallest unit into a pure sustance
- 12. anything which takes up space and can be weighed
- 13. composed of one or more pure substances
- 18. a mixture of 2 or more different elements that have been chemically bonded
- 19. the smallest part of a substance which cannon be broken down chemically
- 20. a state of matter which has a fixed shape, mass and volume
- 22. The rate of change of an object in any direction
- 25. 100 degrees Celsius or 212 degrees Fahrenheit
- 28. Energy which comes from the sun
- 30. a state of matter with no definite shape but a definite volume