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Delta9- Safety, Scientific method, & Variables Flashcards | StudBud

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Delta9- Safety, Scientific method, & Variables

9 terms·StudBud Administration·46 plays

Tests knowledge of control variables, control group, independent and dependent variables. Also asks questions about WHMIS.

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Questions 9

Answers

1
You want to find out if getting a good night sleep enhances test performance. Hypothesis...
If you get more sleep then test performance will improve.
If you improve then you got more sleep.
Sleep mean better performance.
Yes
2
Why is this unsafe lab practice?
The food will be less delicious in the lab.
Food can become contaminated.
Drinking while doing science may make results innacurate.
Sitting is less comfortable.
3
Why is Jesse using poor lab safety protocol?
No fire extinguisher nearby.
He's pouring using a funnel.
No goggles.
He's watching what he is doing carefully.
4
Name a control variable. You want to test whether chewing gum increases memory.
Type of gum
Memory ability
Whether or not participants get gum.
Hair colour.
5
The independent variable is...
What always stays the same.
What you change as the experimenter.
What you measure.
What you control.
6
You want to find out if drinking Coke leads to more cavities. Dependent variable is...
Number of teeth.
Number of cavities.
Amount of coke.
Number of participants.
7
What does this WHMIS symbol stand for?
Sharp tacks
Toxic immediate
Long term toxic
May cause bleeding
8
What does this WHMIS symbol mean?
Use a thermometer
The contents may escape is a dangerous way if heated.
Contains rocket fuel.
The liquid in the container will burn.
9
The dependent variable is...
What you change between groups.
What is randomly different.
What you measure.
What always stays he same.