Scientific Processes Flashcards
What is the scientific process?
The scientific process is a method of research we use to identify a problem, state a hypothesis, collect and analyse data and prove the hypothesis right or wrong.
Name and explain the 5 steps of scientific investigations.
Step 1: Developing the hypothesis, The hypothesis is a statement that you can prove wright or wrong during the investigation.
Step 2: Finding the aim, Aim is a statement of what the investigation is setting out to achieve.
Step 3: Designing investigation, Investigation needs to be valid, reliable, accurate and fair.
Step 4: Running investigation, It’s important that the data or information id accurate.
Step 5: Analusing results, Drawing up graphs and tables to draw a conclusion. Conclusion states whether hypothesis is right or wrong.
In an experiment, the control group is:
A) introduced to variables
B) the group that controls the experiment
C) the group which stays the same
D) the group which is tested last
C
The process of obtaining information by using the senses is called a/an:
A) observation
B) inquiry
C) scientific method
D) conclusion
A
In which step of the scientific method do we want to use graphs?:
A) analyze data
B) asking questions
C) recording and presenting results
D) make hypothesis
C
A triple beam balance is used to measure:
A) mass
B) weight
C) length
D) time
A
A scientist conducted an experiment to determine how the amount of salt in a body of water affects the number of plants that can live in the water.
Wha is the independent and dependent variables.
Independent: amount of salt
Dependent: amount of plants that can live in water
Explain the difference between measuring and estimating.
Measuring is using an apparatus to get an accurate answer while estimating is making a sensible guess.
Explain error of parallax.
When observing the result of an apparatus from an angle it can result into incorrect readings.
What is an uncertainty?
A situation in which the info is imperfect
