Across 1. a measurement of the quantity of matter in an object. (gram) 5. the value that changes according to the changes in the other variables. (2 Words) 6. the pattern of investigation procedures which include: 1. state the problem 2. gather information 3. form a hypothesis 4. test the hypothesis 5. analyze data 6. draw conclusions. (2 Words) 10. a possible explanation for a problem using what you know and what you observe. 11. an exact quantity that people agree to use to compare measurements 13. the amount of space occupied by an object. (liter) 14. a quantity that can have more than a single value. 15. the mass per unit volume of a material. You find density by dividing an object's mass by the object's volume. d=m/v 16. anything that takes up space and has mass 17. the application of scientific knowledge to benefit people. 18. an explanation of things or events based on knowledge gained from many observations and investigations. 19. occurs when the scientist's expectations changes how the results are analyzed or the conclusions are made. 20. In 1960, an improved version of the metric system was devised. Known as the International System of Units, this system is abbreviated SI, from the French Le Systeme Internationale d'Unites.

Down 1. represents an idea, event or object to help people better understand it. 2. the variable changed to see how it will affect the dependent variable. (2 Words) 3. the effect of one thing on another using a control. 4. a visual display of information or data. 7. a factor that does not change. 8. a statement about what happens in nature and that seems to be true all the time. (2 Words) 9. the standard by which the test results can be compared. 12. a group of people that share similar values and beliefs.