Science & Engineering Practice(s) Flashcards
(15 cards)
Scientific Method
The way scientist study and learn about the world
Observation
Using your five senses to gather information about something
Qualitative Observation
Using your senses to describe the characteristics of an object-color, texture, taste.
Examples:
- Smooth texture
- Brightly colored
- Smells bad
Quantitative Observation
Using numbers or measurements to describe something
Examples:
- 10 meters
- 450 meters
- 176 grams
Inference
An explanation of an observation based on prior knowledge
Hypothesis
A prediction based on prior knowledge. Always written in an if then statement.
Examples:
- IF I put the ice in the sun, THEN the ice cube will melt
Variable
Any factor that can be manipulated, controlled for, or measured in an experiment
Control Variable
What must stay the same in the experiment
Manipulated/Independent Variable
The thing that you are testing or changing in an experiment and it is graphed on the X-axis
Dependant/Responding Variable
What you are measuring or observing in an experiment and it is graphed on the Y-axis
C-E-R
C = Claim E = Evidence R = Reasoning
Claim
Is the answer to the question you are trying to answer; give an answer the question based on your observations
Evidence
Scientific data that supports your claim; find information from a text or other sources that supports the claim
Reasoning
The how or why the evidence supports our claim; scientific rule; explain how your evidence supports your claim
Conclusion
A written summary of an experiment that uses evidence to prove what you learned; you state whether prediction was confirmed or not and try to explain your results