Burning Fuels Flashcards

1
Q

People who are trained to put fires out are called? (1)

A

Firefighters

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2
Q

Which 3 elements make up the fire triangle? (3)

A

Oxygen, Heat, Fuel.

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3
Q

If any of these 3 elements are taken away from a fire, the fire will be …………………………. (1)

A

Extinguished

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4
Q

What are the 2 energy sources given from a burning candle? (2)

A

Heat and light energy.

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5
Q

Which of these is also an input energy? (1)

A

Heat.

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6
Q

When the wax of a candle melts, the wax is changed from a solid to a ………………… moving up the wick and then is changed again into a ………… (2)

A

Liquid. Gas.

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7
Q

What was commonly used to put a candle out? (1)

A

A candle snuffer.

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8
Q

Which part of the fire triangle does it remove so the that candle goes out? (1)

A

Oxygen.

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9
Q

When you blow a candle out, which part of the fire triangle does it remove? (1)

A

Heat.

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10
Q

There are 3 things that a firefighter need to do to put out a fire. What are they? (3)

A

Remove the fuel. Remove the heat. Smother the fire.

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11
Q

What is an hypothesis? (2)

A

It is an idea or explanation that you they to prove by doing a scientific investigation.

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12
Q

Before you write an hypothesis, you need to know what the ……….. is you want investigate. (1)

A

Question.

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13
Q

What you think will happen in a scientific investigation is called a? (1)

A

Prediction.

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14
Q

In a hypothesis there are 2 very important statement words. _______ (I do this or that) _________ (this or that will happen). (2)

A

If (I do this) then (this will happen).

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