1 observing

8/13/2019 1 Observing

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To observe an objects means to carefully

explore all of its properties such as colour,texture, odor, shape, weight, volume or

temperature.


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1. OBSERVING

Using one or more of the senses to collectinformation about object and phenomenon

SightIt looks likeHearing- It sounds like..

TasteIt taste like

TouchIt feels like

SmellIt smell like

(Frame of reference)


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The most basic skill in science

Essential to the development of other science

process skills

Types of observat ion

Qualitative

the car is blueQuantitative

that cow has four horns


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Observe the aquarium below


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Acceptable responses Some fish are bigger than others

There are six species of fish in the

aquarium Water lilies are located at the right

The fish at the bottom is red


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Unacceptable responses that are

not observations The big and the small fishes dont like

each other

More fish could live in the aquarium

The small fish are babies of the big fish

Fish near the top is breathing air The water lilies will not have enough air

Describe only what you observed.

Do not infer, guess or predict.


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During

Fibrous strands turn black

Upper part of flame is bright yellow

Liquid material drips down at the side ofcandle

Some of the liquid solidifies on a cooler

part of the candle


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After

White

Solid irregular in shape

Exposed part of fibrous strands is blackMass: 1 g

Height of wax at highest point is 3 mm

2 cm long


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Some observations that could be made

Before

White

Slight odor Undetectable taste

Cylindrical in shape

One end flat, otherend cone shaped

Soft material

composed strands

Mass: 2 gm

5 cm long 5mm diameter

Each strand is 0.5

mm in diameter

coil extends 5 mm

above tip of cone

Observing Changes


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Stage 1: Observing

Observation Senses


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Qualitative Quantitative


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1. Flashes from a torchlight 3. Oberving seed grows

1. Label all the seeds

2. Sketch each seed

3. Qualitative (scratches, etc.)

4. Quantitative (measuring the length,

diameter)

5. Carry out observation on fixed

intervals (should also record the time,

and the date)2. Observing cockroach

1. Sketch

2. Qualitative3. Quantitative (remember

to measure the length

and the width: might be

able to estimate the age)

1. The pattern (like morse code)

2. The time intervals

(time-space relationship not

appropriate because it is hard

to determine the distance

travelled by light)


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A Few Important Things To Remember

Regarding Doing Observation

1. Never interpret

2. Experience counts

3. Limitations of senses - always think of how to improve the

procedure (method), ways of analyzing data, using

appropriate instruments4. Remind the students about dangerous of certain things

1 observing

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