Science Investigations Flashcards
What is the structure of a scientific report?
Title, Aim, Hypothesis, Materials, Method, Results, Analysis, Discussion, Conclusion.
How should a scientific report be written?
Past tense, No pronouns and no more than 200 words.
What is the difference between Observation and Inference?
Observation: What you understand using your senses
Inference: What you can understand using your observations.
What is a hypothesis?
What you think will happen, written in past tense with no pronouns.
When do you make a Hypothesis?
Before you start the experiment or data collection.
How should the aim link to the conclusion?
Should answer the aim, summarize how it was achieved.
What is a fair test.
Not biased, Not changed by humans.
What are the types of Variables?
Independent, Dependent, Controlled.
What is a control variable?
A variable that stays the same.
How do you record data?
With tables or graphs, always use average when possible. Use pencil and SALTSNA when graphing.
Whats the difference between accuracy and precision?
Accuracy: How close a measurement is to the true value.
Precision:How consistently measurements produce the same result.
How to increase accuracy?
MInimize errors use better techniques.
How to increase precision?
Do the experiment multiple times.
What are the different types of errors?
Random errors: Cannot be fixed
Systematic errors: Due to equipment
Gross errors: Human errors
What are different sources of experimental errors?
Human, Equipment and environmental
What does a quality scientific graph consist of?
Title, Axis, Scale, Labels
What is covered in discussion?
Explanation of results, Comparison, Patterns and Errors.
