Scientific report Flashcards
To answer question on scientific reports
What are the main parts of a scientific report?
Title, hypothesis, aim, method, results, discussion, conclusion.
How many control variables do you at least need in a scientific report
You need at least 2.
What is an independant variable?
Something that you change during the experiment.
What is a dependant variable?
Something you measure during the experiment.
What is a controlled variable?
Something that you keep the same during an experiment.
How do you write an aim?
You write an aim by writing what you want to achieve during an experiment.
What is an hypothesis?
Something you predict that will happen during the experiment.
Sara wants to see if a new brand of hair dye lasts longer than the brand she currently uses. She puts the new hair dye on the left side of her head and the old brand on her right side. After 2 weeks she observes which side of her head has more grey hair showing through.
List 2 control variables, 1 dependant and 1 independent variable.
The brand of hair dye that she uses.
The amount of grey hair that shows from the different dyes over 2 weeks
Amount of hair dye she uses
The amount of time after check
What is a method?
A list of steps that show you how to do an experiment so someone else can copy it.
Examples of variables
Example of Identifying Variables:
Experiment: Testing how different amounts of fertilizer affect plant growth.
Independent Variable (IV): The amount of fertilizer (e.g., 0g, 5g, 10g).
Dependent Variable (DV): Plant growth (e.g., height of the plant, number of leaves).
Controlled Variables (CV): Type of plant, amount of water, temperature, type of soil, pot size.
Identifying graphs
Identifying the Best Graph:
The choice of graph depends on the type of data and the relationship you are investigating.
Bar Graph:
Used for comparing categories or discrete data (e.g., comparing the heights of plants with different fertilizer amounts).
X-axis: Categories (e.g., different amounts of fertilizer).
Y-axis: Measured values (e.g., plant height).
Line Graph:
Used for showing trends over time or relationships between variables (e.g., how plant height changes over several days with varying amounts of sunlight).
X-axis: Time or continuous data.
Y-axis: Measured values that change over time or conditions.
Scatter Plot:
Used to show relationships between two continuous variables, often with points representing individual data points (e.g., how temperature affects the speed of a chemical reaction).
X-axis: Independent variable.
Y-axis: Dependent variable.
