Lab safety
What is the first thing you do if you accidentally break a glass beaker or test tube during a lab experiment?
Tell the teacher
What piece of equipment is used to measure temperature in a school lab?
Thermometer
What do we call a line you place on a graph to show a pattern or trend?
Trendline
What is the variable that the scientist purposely changes or manipulates?
Independent variable
What is the first step in the scientific method?
Making an observation
Why should you never taste any substances in the laboratory, even if they look like food or drink?
It could be harmful
A conical flask is shaped a certain way - what is this useful for?
Swirling / mixing substances
What type of graph would be best for discrete (categorical) data?
Bar chart
What is a control variable in an experiment?
Something that must be unchanged for a fair test
What is the term for a well-organized plan that scientists use to carry out an experiment?
Method / procedure
What is the purpose of a safety shower in a science laboratory?
To rinse a student after a chemical spill
What is the purpose of the gauze mat?
To evenly distribute heat
What type of graph would be best for continuous (numerical) data?
Line / scatterplot
If you were investigating how the amount of sunlight affects plant growth, what would be the dependent variable in your experiment
Plant growth
An educated guess
In the event of a fire in the laboratory, what is the correct procedure to follow?
Follow teacher instructions
Which piece of glassware is the best option for precisely measuring quantities
Measuring cylinder
Quant = numbers (e.g. temp)
Qual = qualities (e.g. colour change)
In an experiment testing the effect of different amounts of fertilizer on plant growth, what would be considered a controlled variable?
Lots of answers
After conducting an experiment, what is the next step in the scientific method?
Analysing / making a conclusion
Describe 3 ways you can contribute to a safe lab environment with your group during pracs
Working quietly, moving safely, staying focused etc.
List all the steps in the Bunsen burner set up
Check equipment, air holes closed, light match, gas on, light burner
What is the difference between discrete and continuous data? (Give an example for each)
Discrete - categories (e.g. colour)
Continuous - range (e.g. heights)
In an experiment investigating the relationship between the height from which a ball is dropped and the distance it bounces, what is the independent, dependent and a controlled variable?
Ind - height of drop, dep - distance of bounce, control - lots of answers
In an experiment, why is it important to repeat trials and conduct multiple tests?
To ensure reliability / identify patterns