grade 3 science lesson by Mrs . Aisha

1. Ch 1 lesson 4
How do
scientists
?communicate

2. Communicatio
n

4. 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
1
2

5. One way scientists check each
other’s work is to replicate, or
repeat, an experiment.
A good experiment can be repeated.
For , this reason

6. Scientists must keep careful records - 1
of their experiments.
2- Other scientists can repeat the same
.procedure if they know how it was done

9. Plan an
Experiment

10. 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

11. 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

13. Keep
Records

14. 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

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

16. 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

17. chart

18. bar graph

19. Share your
Investigatio
n

20. Scientists share procedures,
data, and conclusions with one
another.
.They do this in different ways

21. Scientific meeting : where they -1
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

22. write a report -4
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

23. Repeat an
Investigatio
n

24. 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

25. 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

26. scientific meeting-1
2- write an article
3- use computers & the internet