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Biology 4#1

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

A controlled variable

a)

The thing you change on purpose

b)

Can be measured to test your hypothesis

c)

Something in an experiment that can change but we keep the same

d)

Is the thing that determines how the experiment is run, in control of the experiment

2.
What step does every scientific experiment begin with?
a)
hypothesis
b)
question/problem
c)
procedures
d)
conclusion
3.

On a graph, where is the manipulated variable placed?

a)

X-Axis

b)

Y-Axis

4.

What is the relationship between y and x?

a)

Y is Directly proportional to x

b)

Y is Inversely proportional to x

c)

Y is Increases linearly to x

d)

Y increase with x

5.

The diagram above shows an equipment found in a laboratory. Choose the name of the equipment

Rajah di atas menunjukkan sebuah alat keselamatan yang didapati di makmal. Pilih nama alat tersebut

a)

Emergency shower station

stesen pancuran kecemasan

b)

Laminar flow cabinet

Kabinet aliran lamina

c)

Fume hood

Kebuk wasap

d)

Biological safety cabinet

kabinet keselamatan biologi

6.

Which of the following substances can be disposed into the sink?

Antara bahan yang berikut yang manakah yang boleh dibuamg dalam sinki?

a)

Acid with a pH value of 6

Asid dengan nilai pH 6

b)

Oil

Minyak

c)

Organic waste

Sisa organik

d)

Mercury

Merkuri

7.

Which diagram represents sagital plane?

Rajah yang manakah mewakili satah sagital?

a)

A

b)

B

c)

C

8.

Safety goggles should be worn during the laboratory experiments to…

a)

improve vision

b)

protect your face

c)

protect contact lenses

d)

protect eyes

e)

all of the above

9.

If a chemical gets in your eyes…

a)

immediately wipe the chemical off your eyes

b)

immediately use the eyewash station

c)

place eye drops from the instructor in your eyes

d)

inform the instructor before taking other action

e)

all of these are appropriate

10.

What should you wear in the science lab to be safe and protected from dangerous chemicals?

a)

Goggles

b)

Apron

c)

Closed-toed shoe

d)

All of the above