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Science yr7 > Scientific Method > Flashcards

Scientific Method Flashcards

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1
Q

What is an experiment?

A

A test on a small part of the world around us.

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2
Q

What is a observations?

A

What is seen heard smelt felt and tasted.

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3
Q

Give me a quantitative observation.

A

The sky is a yellowie,blue today

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4
Q

Give me a qualitative observation.

A

I woke up at 6:45 today

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5
Q

What is an inference?

A

A logical explanation based on your observations.

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6
Q

Tool and unit to measure Mass

A

A beam balance.

g (grams) and kg (kilo grams)

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7
Q

Tool and unit to measure time.

A

Stopwatch

s (seconds)

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8
Q

Tool and unit to measure volume.

A

Measuring cylinder

ml (millileters) and/or L (liters)

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9
Q

Tool and unit to measure temprature.

A

Themoniter

°C (degrees celcius)

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10
Q

Tool and unit to measure length.

A

Ruler

M (meters) ,mm….ect

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11
Q

What is a meniscas?

A
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12
Q

How can you stop parralax error?

A

By putting your measuring cylinder on a flat surface and look at it eye level.

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13
Q

How can you record measurments wrongly?

A
  • Not writing down the measurments as soon as you know them.
  • Using factors (not decimals)
  • Not making sure everyone in the group has a copy.
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14
Q

What is analysing?

A

Looking for patterns and trends in a experiment.

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15
Q

What is primary data?

A

You collected it yourself.

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16
Q

What is secondary data?

A

Data that is from another source.

17
Q

Why would you use seconday data?

A
  • Dangerous
  • No acces to equipment
  • Too expensive
  • For comparison to your data
  • Location
  • Too hard to conduct
18
Q

What is a anatomy?

A

A data point that does not fit a trend (ignore it).

19
Q

What are mistakes?

A

These happen when you do not take enough care. These are sometimes known as human errors.

20
Q

What are errors?

A

These are small and uncontrollable variations that occure naturally in experiments.

21
Q

What are some mistakes?

A
  • Spilling material
  • Using the wrong equipment
  • Inncorrectly writing the measurment down
  • Parralax error
22
Q

What are some errors?

A
  • Reading error
  • Instrument error
  • Human reflex
  • Zero error
23
Q

What is an aim in an experiment?

A

to determine…..

to measure……..

to find out……….

24
Q

What does CMS stand for?

A

C: Changed

M: Measured

S: same

25
Q

What is a independent variable?

A

What you changed in a experiment.

26
Q

What is a dependent variable?

A

What you measure

27
Q

What is a controlled variable?

A

Science yr7 (4 decks)

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