S1 10/1 - Ah, ha, ha, ha, stayin' alive
Quiz
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Science
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7th Grade
•
Practice Problem
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Medium
Genie Ask
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following should we wear to protect our eyes?
closed-toe shoes
gloves
lab coat
safety goggles
Answer explanation
Safety goggles are worn to minimise risk of injury to the eyes.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mr Yuk, to the right, is a trademarked graphic that informs the presence of a poisonous substance. This new symbol is primarily meant for children as a less abrasive way to demonstrate the hazards of poison.
Which of the following hazard symbols is the most similar in meaning to Mr Yuk?
Answer explanation
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The hazard symbol below represents oxidising substances.
Oxidising substances release oxygen easily which can cause fire and/or explosion.
Which of the following hazard symbols represent substances which may cause explosions and fire?
A
B
C
D
Answer explanation
The risk of causing explosions is associated with explosives.
The risk of fire is associated with flammable substances.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following describes the difference between a luminous flame and a non-luminous flame?
A
B
C
D
Answer explanation
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following parts of the Bunsen burner allows us to switch between a luminous flame and a non-luminous flame?
air hole
barrel
base
gas pipe
Answer explanation
The air hole allows air to enter the burner. When the air hole is closed by adjusting the collar, a luminous flame is produced and when the air is open, a non-luminous flame is produced.
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