Across
- 5. variable-the one variable that is altered
- 6. method- Series of steps that scientists follow to approach research
- 7. group-in a scientific experiment, group where no changes are made (used as a comparison group)
- 10. complex cell that has a nucleus
- 14. using senses to collect information about your surroundings
- 16. variable- the variable that changes in response to the independent variable (can have several)
- 20. experiment-An experiment where only one variable is changed.
- 21. Organized way of gathering and analyzing evidence about the natural world
- 23. variables-all other variables that are kept the same in a controlled experiment
- 24. the chemical reactions within an organism that build or break down substances
- 27. of cells that work together (same job)
- 28. single celled organism that lacks a nucleus
Down
- 1. genetic code found in all living organisms (deoxyribonucleic acid), and is responsible for determining the traits of that organism
- 2. of maintaining stable internal environment within a cell/organism
- 3. of a single cell
- 4. group-in a scientific experiment, group where independent variable is altered
- 8. well-tested explanation unifies a broad range of observations
- 9. scientific explanation for a set of observations.
- 11. trait that an organism has that allows for it to survive and reproduce at a greater rate
- 12. of tissues that work together
- 13. interpretation based on what scientists already know
- 15. reproduction-reproduction in which a single parent produces offspring, identical to the parent and each other
- 17. up of more than one cell
- 18. reproduction-reproduction in which two parents produce unique offspring, different from the parents and each other
- 19. unit of life
- 22. review-an expert analysis of experimental results, completed to allow for other scientists to look for flaws, re-test results, and evaluate validity of the results
- 25. to which an organism responds
- 26. system-groups of organs and tissues that work together