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Physical Science Post Test

Authored by Charles Martinez

Other Sciences

KG - University

Physical Science Post Test
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93 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

A student must heat the contents of a test tube. Which of the following shows the correct technique to use to heat and hold the test tube?

A
B
C
D

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Of the following symbols, which represents a biological hazard?

A
B
C
D

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Students will conduct an experiment using the following materials: bunsen burner, beaker of water, glass tubing, four test tubes containing different chemicals, and rubber stoppers. Which of these steps is MOSTcritical for students to follow when using these materials in the lab?

Wearing eye protection at all times
writing the lab procedure in a notebook
washing hands before starting the experiment
placing a stopper on all test tubes before heating them 

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

While heating a test tube it is important to _

make sure the liquid level is at the top of the test tube
make sure the test tube is pointing away from people
keep the test tube perfectly still while it is being heated
heat the bottom tip of the test tube

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Two safety features found in most laboratories are a safety shower and a safety fountain with two water jets. What is the main purpose of the safety fountain?

to irrigate nostrils is fumes are inhaled
to rinse mouth if chemicals are ingested
to wash hands if exposed to toxic material
to flush the eyes if contaminated with chemicals

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

While working on a class chemistry experiment, Victor dropped a glass test tube filled with an unknown liquid. What should Victor do first?

put on gloves
inform the teacher
sweep up the broken glass
clean up the spilled chemical 

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Metals and nonmetals generally form ionic bonds with each other. Which of the following sets of elements will MOST LIKELY form an ionic bond?

Na, F
Cl, F
Na, K
He, O

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