How do scientists

communicate?

Ch 1 lesson 4

Communication

Communication : is an important part of science investigations.

Scientists communicate with each other to share what they learn.

They question and check each other’s work.

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One way scientists check each other’s work is to replicate, or repeat, an experiment.

A good experiment can be repeated.

For this reason,

1 -Scientists must keep careful records of their experiments.

2- Other scientists can repeat the same procedure if they know how it was done.

Plan an Experiment

When you plan an experiment, you write a procedure.

Procedure : is a plan for testing a hypothesis.

Procedure describes: 1- the materials you will use. 2- the steps you will follow.

As you plan an experiment,think about the question you are trying to answer.

Figure out what you know and what you want to find out.

Keep Records

When scientists investigate, they do the same experiment several times.

Each time is called a trial .

Scientists keep careful records of their results for each trial .

There are many ways to keep records : 1- numbers 2- wordsyou can use 3- draw a picture 4- draw a map 5- chart 6- bar graph

Chart : is a way to organize what you record.Chart : is a kind of list.

Graph : is a way to organize data.Bar graph : is a graph that helps you compare data and see patterns.

chart

bar graph

Share your Investigatio

n

Scientists share procedures, data, and conclusions with one another.

They do this in different ways.

1-Scientific meeting : where they might talk about their work. 2-Write an article that describes their investigation and conclusions. 3-Computers and the internet where scientists keep records and then they can easily send their data to other scientists .

4- write a report 5- write a journal entry 6- presentation in front of a class 7- create a poster 8- create an exhibit

9- create portfolio to display a procedure and what is learned.

Repeat an Investigatio

n

Scientists check each other’s work.

One scientist will repeat another scientist’s experiment so they can compare evidence and explanations.

An explanation is considered true if another person can follow the procedure and get similar results.

* If two scientists follow the same procedure and get different results, they can discuss why.

* They can use this information to make the procedure better for the next scientist.

1-scientific meeting2- write an article

3- use computers & the internet