How Do Scientists Work

4. any condition that can be changed in an experiment
6. a tool used to measure forces
8. a personal belief or judgement that does not need to be backed up with evidence
10. the study of the natural world through observation and investigation
11. information collected during a scientific investigation
12. the experimental setup to which you will compare all other setups

1. very close to the actual value
2. a tool used to measure the amount of matter in an object, which is the object's mass
3. different ways that scientist perform investigations and collect reliable data
5. too small to be seen without using a microscope
7. a procedure carried out to carefully observe, study or test something in order to learn more about it
9. a procedure carried out under controlled conditions to test a hypothesis