Science - Getting started Flashcards
What are the 4 aspects in Science
Biology
Chemistry
Physics
Earth and Science
What is science
What is technology
How do you draw common lab equipment
only use pencil and ruler
fill the page
no shading
only label all equipment using a straight horizontal line
no arrowheads
has to be attached to drawing
What is the difference between a blue and yellow flame of the bunsen burner
A yellow flame occurs when the bunsen burner has the holes closed and tells us a warning that there is a flame which means it is called a safety flame whilst a blue flame occurs when the airhole is open and you can rarely see the colour
What is the International system of units
the unit symbol for science
length = m
time = s
mass = kg
temperature = degrees celcius or kelvin (k)
volume of liquid = m3, L, mL
What is the scientific method
1: Ask a question
2: State a hypothesis
3: Conduct a experiment
4: Analyse the results
5: Make a conclusion
What is the aim and hypothesis
The aim is the question you are asking which should be a general question. The hypothesis is what you think you might find out based on your current knowledge. “I think..”
What is the independent variable
This is what your changing in the experiment, you only change 1 thing. Use at least 3 values and values must be a reasonable range to be valid. Remember units
What is the dependent variable
This is what your measuring/observing and the result depends on how you chang your independent variable. You must be specific on what your measuring.
What is the controlled variables
These are the variables that you are keeping the same to give a fair test. You need to make sure that they don’t change.
How to write a method
- like a recipe
- draw a labelled diagram of your set up
- make sure you describe each value for the independent variable and how you are measuring the results
- include the amount of times you repeat each test
How to write the results
in a table
- UNITS in the heading not the body of the table
- Headings
- pencil and ruler
How to find the average
add each trial up and divide by the amount of trials
How to find the outlier
If you find any strange values that don’t fit the trend that means you have not controlled your variables carefully enough. Cross out any outliers and do not include them in the average