Lab Safety
How many fire extinguishers are in our classroom?
2
what does the skull and cross bones HHPS symbol mean?
Poisonous
Which variable is changed by the experimenter and will cause the dependent variable to change?
Independent variable
What is the general format of a hypothesis?
If.... then....
What type of resources are formed naturally, much slower than we consume them?
Non-renewable
Where should broken glass go?
Broken glass bucket
What hazard symbol is used if something could explode when it is heated or damged?
Explosive
Which variable is measured by the experimenter and changes based on the independent variable?
Dependent variable
Change this hyposthesis to an "if...then..." statement: Drinking an energy drink will make you run faster
If you consume caffeine, like an energy drink, then you will be able to run faster.
Solar energy, wind energy and hydropower are all examples of what?
Renewable energy sources
What should you do if you get chemicals in your eye?
Tell your teacher immediately and use the eye wash for at least 15 minutes
What does HHPS stand for?
Hazardous Household Product Symbols
Which variable is kept the same throughout the experiment to make sure that all trials are only testing the independent variable?
Control / constant
Change this hyposthesis to an "if...then..." statement: Sleeping more each night helps you do better at school.
If you get more sleep each night, then you will do better on your tests and assignments.
True or False: We will never run out of coal, gas and oil
FALSE
What safety device would be used if you spilt a large amount of chemicals on your clothes and body?
Safety shower in room 221
What is the hazard word used for materials that could burn your skin, eyes, throat and even metal.
Corrosive
You complete an experiment to see if more sunlight will make the plants grow faster. What is the dependent variable?
Plant growth (plant height)
Write a hypothesis: You complete an experiment to see if thocker paper will make your paper helicopter fall faster
If the paper is thicker and has more weight, then the paper helicopter speed will increase.
Which era involves a heavy reliance on electricity and non-renewable resources, as well as increased technological advances.
Modern day
List 2 pieces of personal protective equipment that would be used during a lab.
What is the difference between HHPS and WHMIS?
HHPS is used for household products, whereas WHMIS is used for products in the workplace.
You complete an experiment to see if increasing the soil pH will make plants grow faster. What is the independent variable?
Soil pH
Write a hypothesis: You are testing if tap water or distilled water is better for plant growth.
If plants are given tap water with minerals, then the plant height will increase more quickly.
Which era involved an increase of factories, the development of cities and widespread air pollution?