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Lab Equipment
Lab Safety
Steps of Scientifc Method
Controls & Variables
Vocabulary
100

What piece of lab equipment would you use to HEAT something in the lab?

A bunsen burner, hot plate, crucible, test tubes

100

Give example of safe attire for a lab.

tie your hair up, wear goggles all the time, no loose clothing, appropriate shoes

100
If people drink 4 alcoholic drinks, then they are more likely to crash when driving. This is an example of what step of the scientific method?
What is a Hypothesis
100
Which variable is the one the experimenter can manipulate in an experiment?
The Independent Variable
100

What does manipulate mean? Make a sentence

change something

200

Name a piece of equipment you can use during a dissection (cutting open a specimen).

Scalpel, tweezers

200

Where do we dispose of chemicals we use?

Never down the drain, follow the safety guide (WHMIS)

200
At the end of an experiment you write a statement to either accept or refute your hypothesis. What step of the scientific method is this?
What is the conclusion.
200
100 men were divided into 2 groups of 50 to test a new product...beard be gone. It is supposed to remove hair without having to shave. Group 1 was given beard be gone and Group 2 was given regular shaving cream. They were to use the product everyday for 1 week. What is the control in this experiment?
Group 2 - the group that used shaving cream.
200

What is a solution? Give an example. 

A mixture with liquid like salt water. 
300

What are 2 things that we use to measure liquids in lab?

graduated cylinder, beaker, Erlenmeyer flask

300

What should you do if you get chemicals in your eyes?

Open your eyes in running water. 

300
In an experiment besides the Independent Variable, all the other factors must be the same for all the group you test. These other factors are known as what in the experiment?
The Constants or The Controlled Factors
300
3,000 people were divided into 3 groups to see how excercising affects pulse rate. Group 1 did no excercise for 10 minutes. Group 2 did a mild excercise (walking) for 10 minutes Group 3 did strenous excercise for 10 minutes. At the end of 10 minutes everyones pulse rate was recorded. What is the dependent variable in this experiment?
Average pulse rate of each person.
300

What is a property? Give a property of metals. 

A characteristic that belongs to something. Metals conduct heat. 

400

when you need to measure the weight of something what piece of equipment do you use?

A triple beam balance or scale

400

What's the document that tells us how to handle substances in the lab?

MSDS (MATERIAL SAFETY DATA SHEET)

400
What is the standard of comparison in an experiment called?
The Control (group)
400
Harold wants to know eating breakfast helps you do better on a test. He gets 10 friends who take science with him to do an experiment. 5 friends eat breakfast before their science test and 5 do not. After the test Harold records all their grades. What is the independent variable in this experiment?
Eating breakfast
400

What does volatile mean?

Changes easily over time. 

500

What do we use to grind something into smaller pieces?

mortar and pestle

500

What do we do if there's a fire?

Fire blanket, fire extinguisher

500

Make a hypothesis for an experiment about how different kinds of manure affects plant growth.

answers may vary.

500
Jody has itchy feet. Her friend Beth tells her soaking her feet in salt water will help. Her friend Mary tells her putting lotion on each night with socks will help. Jody decides to do an experiment and try both remedies. After 1 week her feet don't itch anymore. Jody decides both remedies worked. What is wrong with Jody's conclusion?
She tested both rememdies at the same time so there is no way to know if both really worked, or just one of them.
500

What does designated mean? Tell 2 types of designations in the parking lot. 

Something that is chosen specifically for a purpose. There is a handicap designation and a EV car designation.