Earth Science Chapter 1 Crossword

2. anything that occupies space or has substance
5. if a theory has never been proven false, scientists will call it a ________
6. condition that stays the same in both the control group and the experimental group
9. conditions present only in an experimental group
12. break down
15. educated guess
16. material derived from living organisms
17. method used by scientists to test a hypothesis
20. an organized way for scientists to gather and pursue scientific knowledge is known as the scientific _______
23. right below topsoil
25. top 2-6 inches of soil

1. after many experiments and observations are completed, scientists may use their conclusions to formulate a ____
2. material derived from nonliving matter
3. has smaller particles than sand and feels like flour
4. soil layer
7. involves gathering data about nature in an orderly way
8. coarse and gritty with large, easily seen particles
10. mixture of silt, sand, clay, humus
11. process that breaks rocks down into soil
13. scale used to express the degree of acidity or basicity of a substance
14. the study of the matter and movement of God's physical creation
18. study of soil
19. chart used by pedologists
21. composed of decayed organisms' particles
22. has the smallest particles
24. below subsoil