How Science Works Flashcards
Define accurate
Close to the true value of what your are measuring
Define analyse
The process of looking at data and writing about what you have found
What is a bar chart
A way or presenting data when one variable is categoric and the other is continuous
Define categoric
A variable that has values that are words
Define conclusion
What you write down to say what you’ve found out during an investigation
Continuous
A variable that has values that can be any number
Control variable
The variable you keep the same in an investigation
Data
Words or numbers that you obtain when you make observations or measurements
Dependant variable
A you variable that changes when you change the independent variable (what you measure)
Evaluate
To discuss that quality of data collected during an investigation and suggest improvements to the method
Independent variable
A variable you change that impacts the dependent variable (this you change)
Line graph
A way of presenting results when there are two numerical variables
Define spread
The difference between the highest and lowest measurements of a set of repeat measurements
What does this mean
Moderate health hazard
What does this do
Causes skin irritation
What does this mean
Serious health hazard
What does this do
Causes breathing difficulties
What does this mean
Toxic
What does this do
Could cause death if swallowed or inhaled
What does this mean
Corrosive
What does this do
Damages skin and clothing
What does this mean
Fammable
What does this do
Catches fire easily
What does this mean
Oxidising
What does this do
Makes flammable substances burn more fiercely
What does this mean
Harmful to the environment
What does this do
Could cause damage to animal and plant life
What is the Hypothesis
A detailed explanation of why you are making the prediction
What is metre (m) the unit of
Length
What is square metre (m^2) the unit of
Area
What is cubic centimetre (cm^3) the unit of
Volume
What is kilogram (kg) the unit of
Mass
What is celcius (degrees C) the unit of
Temperature
What is pH the unit of
Measure of acidity or alkalinity of a solution
What is newton (N) the unit of
Force
What is second (s) the unit of
Time
What is volt (V) the unit of
Electrical potential difference
What is hertz (Hz) the unit of
Frequency
What is decibel (dB) the unit of
Sound intensity
What is joule (J) the unit of
Energy
