8/19/2019 2. Exam Chapter 1

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Based on the data given, draw the graph below. Then, answer the following

questions

1. Bar chart

Gender Male FemaleNumber of

students

10 20

2. Histogram

Gende

r

40-44 45-4 50-5 !0-!4

Number of

studen

ts

4 12 20 10

". #ine gra$h

 %ime&min 0 2 4 ! %em$erature&'( 0 5 10 15

)a* +tate the ,ariables in,ol,ed

Mani$ulated ,ariablees$onding ,ariable

)b* +tate the h$othesis

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  Record the reading from the apparatus or diagrams below

Identify the variables and state the hypothesis involved in each of the following

experiment

im %o in,estigate the relationshi$ bet3een the length of $endulum and the $eriod of

time for oscillation

Mani$ulated ,ariable 

es$onding ,ariable 

Fied ,ariable 

H$othesis

im %o in,estigate ho3 the total surface area a6ect the rate of cooling 3ater in the

$lastic container

Mani$ulated ,ariable 

es$onding ,ariable 

Fied ,ariable 

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H$othesis

Write the suitable scientic attitudes or noble values for each of the scientic

investigation listed below!

1. dentifing a $roblem 

2. Ma7ing h$othesis

". 8lanning an in,estigation

4. (ollecting data

5. Ma7ing a conclusion

"tudy the following statement

9+alt solution boils at higher tem$erature than distilled 3ater:

)a* +uggest one h$othesis to in,estigate the abo,e statement

;1m<)b* =sing the suitable a$$aratus> describe one e$eriment to test our h$othesis in 5)a*

based on the follo3ing criteria)i* ims of the e$eriment

;1m<)ii* denti?cation of the ,ariables ;2m<)iii* #ist of a$$aratus and materials

;1m<)i,* 8rocedure or method ;4m<),* %abulation of data

;1m<

Figure belo3 sho3s t3o $iece of cloth that has been com$letel soa7ed and hung under thesun.

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Based on the ?gure

)a* +tate the obser,ation of the e$eriment)b* Ma7e an inference from this e$eriment)c* +tate the constant ,ariable of the e$eriment)d* +tate a h$othesis for the e$eriment)e* +tate one o$erational de?nition for the rate of e,a$oration

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