Safety In The Lab Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

What does explosive mean?

A

The substance can explode

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2
Q

What does oxidising mean?

A

The chemical attacks metal or burns and destroys living tissue

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3
Q

What does Poison/Toxic mean?

A

If swallowed or breathed in, the substance can make you sick or die

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4
Q

What does irritant/harmful mean?

A

The substance can make your skin or eyes irritable

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5
Q

What does biohazard mean?

A

Living organisms that can spread diseases

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6
Q

What does corrosive mean?

A

The substance can burn your skin or eyes

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7
Q

In Bunsen burners, what does the rubber tube do?

A

Carries gas from the gas tap to the Bunsen burner

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8
Q

In Bunsen burners, what does the chimney do?

A

It’s where the oxygen and gas are mixed together before burning

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9
Q

In Bunsen burners, what is the air hole for?

A

Allows oxygen to get into the chimney

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10
Q

In Bunsen burners, what does the base do?

A

Holds the Bunsen burner up straight

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11
Q

In Bunsen burners, what are the collars for?

A

Changes the size of the air hole

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12
Q

Describe a safety flame

A

Air hole: closed
Colour: yellow/orange
Use: keeping warm

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13
Q

Describe a silent flame

A

Air hole position: half open
Colour: blue
Use: cooking

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14
Q

Describe a roaring flame

A

Air hole position: open
Colour: blue
Use: cooking

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15
Q

What does flammable mean?

A

The substance can catch fire easily if near flames, heat or sparks

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16
Q

What is the independent variable?

A

Something you change in an experiment

17
Q

What is a dependent variable?

A

The one you measure

18
Q

What is the controlled variable?

A

Something you keep the same in order to make it a fair test