1
															2				3
												4
5			6															7
					8				9	10
		11																				12
													13			14
15
										16
			17
																				18
												19
	20
												21
																	22
												23
										24
														25
										26

Across 4. an explanation for some type of phenomenon that is based on observations, experimentation or reasoning 7. this is a vertical column on the periodic table 9. the relationship between two variables whose product is constant 11. the amount of space an object occupies 13. a substance made up of two or more elements chemically bonded 15. this the ratio of the mass of an object to the volume of an object 16. a description of how close a measurment is to the true value 17. a type of change in matter from one form to another with no change in identity 19. the central science, it is the study of the composition, structure, and properties of matter and the changes it undergoes 20. a measure of the gravitational force exerted on an object 23. this type of property is dependent on the amount or size of a system 24. a form of matter that has an indefinite shape and indefinite volume 25. this factor is a ratio that is derived from two different units that can be used to convert from one unit to another 26. a type of change that occurs when one or more substances change into entirely new substances

Down 1. this is anything that has mass and takes up space 2. this is a pattern, plan, representation designed to show the structure or workings of an object 3. a substance or molecule that participates in a chemical reaction 5. a form of matter that has a defiinite volume and indefinite shape 6. this is the smallest unit of an element that retains the properties of that element 8. something that has size, magnitude, or amount 10. this is an element that conducts heat and electricity poorly and does not form positive ions 12. the relationship between two variables whose ratio is a constant value 14. the exactness of a measurement 17. this is a horizontal row of elements on the the periodic table 18. an explanation based on prior scientific research or observations that can be tested 21. a type of property that is not dependent on the the amount of size of a system 22. a measure of the amount of matter in an object