Lab Safety
What should you always wear to protect your eyes during experiments?
Safety goggles
What is the first step in the scientific method?
Ask a question / Identify the problem / Aim
Which branch of science studies living things?
Biology
What equipment is used to accurately measure liquid volumes?
Measuring cylinder
What is the difference between quantitative and qualitative data?
Quantitative = numbers/amounts; Qualitative = descriptions/qualities
If you break some glassware, what is the first thing you should do?
Tell the teacher immediately
What is a hypothesis?
A testable prediction or educated guess
Which branch investigates chemical reactions and properties of substances?
Chemistry
What piece of equipment is best for measuring mass?
Electronic balance or triple beam balance
What is the difference between an observation and an inference?
Observation = what you see/measure directly; Inference = a logical explanation based on observations
Why should you never eat or drink in the science lab?
Chemicals may contaminate food/drink and cause harm
What is the variable that is changed by the scientist called?
Independent variable
Which branch explains forces, motion, and energy?
Physics
What tool is used to measure the length of an object?
Ruler
Name one rule for making scientific tables.
Various answers
What is the proper way to smell a substance in the lab?
Wafting (hold your hand above the container and gently wave vapours toward your nose)
Why is it important to repeat experiments?
To confirm results and increase reliability
Which branch studies the planet, weather, and the environment?
Earth and Environmental Science
Which glassware would you use to mix chemicals but not for accurate measurements?
Beaker
Name two rules for drawing a graph.
Name three pieces of safety equipment found in most labs and explain their use.
Examples: Safety shower (rinse off hazardous chemicals), eye wash station (flush eyes), fire extinguisher (put out small fires)
Describe what is meant by a fair test in science.
A fair test is an experiment in which only one variable (the independent variable) is changed, while all other variables are kept the same (controlled variables). This ensures that results are due to the variable being tested and not influenced by other factors.
Many modern scientific fields combine elements from more than one branch of science. Name one interdisciplinary science and explain which branches it combines and what it studies.
Example: Environmental Science combines biology, chemistry, and earth science to study how living organisms interact with their environment, the impact of human activity, and ways to protect natural resources.
What is the purpose of a pipette in the lab, and how does it differ from a measuring cylinder?
A pipette is used to transfer small, precise volumes of liquids, while a measuring cylinder measures larger amounts and is less precise for tiny volumes.
You are given a table of data showing the average temperature for each month of the year. Describe how you would construct an appropriate graph to display this data and explain your choices.
I would use a line graph, placing months on the x-axis (independent variable) and temperature on the y-axis (dependent variable). A line graph is appropriate because it shows trends and changes over time, which helps interpret seasonal temperature variation.