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scientific process / lab safety - grade 9

Total questions: 14

Worksheet time: 9mins

Name
Class
Date
1.

Which of following senses do we NOT use to make observations in a laboratory?

a)

Sight

b)

Hearing

c)

Smell

d)

Taste

2.
True or False;
A Hypothesis has to be correct. 
a)
True 
b)
False
3.
The summary at the end of an experiment that explains the results is called the...
a)
conclusion
b)
procedures
c)
materials
d)
responding variable
4.
What is a control group in an experiment?
a)

a group in an experiment that remains unchanged for purpose of comparison

b)

a group in an experiment that changes

c)
the manipulated group
d)
the group that is altered
5.

an educated guess or prediction

a)

form a hypothesis

b)

making inferences

c)

scientific method

d)

ask a question

6.

If a fire erupts, immediately

a)

run for the fire extinguisher

b)

throw water on the fire.

c)

notify the teacher.

d)

open the windows.

7.
Which of the following IS considered safety equipment in our classroom?
a)
Eyewash Station
b)
Emergency Shower
c)
Fire Extinguisher
d)
All of the Above.
8.

To examine something closely using all of your senses.

a)

observation

b)

hypothesis

c)

data

d)

conclusion

9.
It protects the eyes from chemical splashes.
a)
Watch glass
b)
Goggles
c)
Evaporating dish
d)
Thermometer
10.
Scientific Question:  Does playing video games improve reaction time?
What is the controlled variable?
a)
playing video games
b)
reaction time
c)
type of video game
11.
Which of the following statements is an inference about the picture
a)
The vase is broken.
b)
The girls' bow is blue and purple.
c)
The girl broke the vase.
d)
The girl has blonde hair.
12.

An inference is...

a)

an interpretation or an explanation of an observation.

b)

a very detailed observation.

c)

information that you create to fill in the gaps of your knowledge.

d)

a literary term that doesn't really mean anything in science.

13.

Which describes the experimental variable that you CHANGE on purpose to see what happens?

a)

responding/dependent

b)

control variable

c)

experimental results

d)

manipulated/independent

14.

Which of the following describes the experimental variable that is a RESULT of what you changed on purpose?

a)

responding/dependent

b)

control variable

c)

experimental data

d)

manipulated/independent