Introduction to Science Flashcards

1
Q

Define dependent variable

A

You measure this.

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2
Q

Define independent variable

A

You change this.

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3
Q

Define control variable

A

This stays the same.

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4
Q

What kind of data would you use to draw a bar chart?

A

Data with different categories (categoric).

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5
Q

What kind of data would you use to draw a line graph?

A

One category of data (continuous) (numbers)

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6
Q

List some key safety rules for working in a science lab:

A

-no running
-wear goggles
-don’t look into test tubes from the top
-don’t throw things
-tie hair back

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7
Q

How do you get a safety flame with a Bunsen burner?

A

Fully cover air hole

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8
Q

How do you get a blue flame with a Bunsen burner?

A

Half cover air hole

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9
Q

How do you get a roaring blue flame with a Bunsen burner?

A

Don’t cover the air hole

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10
Q

List some safety precautions you need to take when using a Bunsen burner

A

-Start with air hole closed
-don’t touch flame

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11
Q

Which Bunsen flame is hottest?

A

Roaring flame

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12
Q

Explain why you shouldn’t look at the flame when you burn magnesium?

A

It gets really bright

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13
Q

What else should you do to make this experiment safe?

A

Hold it away from you.

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14
Q

Why should you be careful when doing research online?

A

It might be wrong and untrustworthy

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