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

Across 3. a question that may lead to a hypothesis and help in answering the reason for some observations 5. a small part intended to show what the whole is like 6. possible answer to a scientific problem 7. relating to the quality of something 11. something that furnishes proof 13. to infer from something that is known; infer 14. what someone thinks will happen 16. a way to carefully plan experiments in advance so that results are valid 17. well-tested explanation that unifies a broad range of observations and hypotheses’ to enable scientists to make accurate predictions about new situations 19. the combination of chemical reactions though which an organism builds or breaks down materials 20. a group of subjects who are exposed to the variable under study 21. summary of how the results of the experiment support or contradict the original hypothesis 22. a factor that is liable to vary or change 23. process of noticing and describing events or processes in a careful orderly way 24. a logical interpretation based on prior knowledge and experience 25. relatively constant internal and physical and chemical conditions that organisms maintain; sweating, shivering

Down 1. the study of life 2. factor that in a controlled experiment that is deliberately changed; manipulated variable 4. particular preference or point of view that is personal rather than scientific 7. relating to the quantity of something 8. the passing on of physical or mental characteristics genetically, from one generation to another 9. a group in an experiment that is exposed to the same conditions as the experimental group except for one independent variable 10. variable that is observed and that changes in response to independent variable; responding variable 12. a system or thing used as an example to follow or imitate 15. method of research in which a problem is identified, relevant data is gathered, a hypothesis is formulated from the data and the hypothesis is tested 18. a limitation or restriction