Test evaluare stiinte3, clasa a IV-a

Nume si prenume ______________________________                                  Data __________________

Test de Evaluare

-Stiinte ale Naturii-

1. Completeaza spatiile libere:

a) In agricultura apa este folosita pentru ________________________________ .

b) Sarea se obtine prin _____________________________________________________ a apei.

c) Solul este stratul ___________________ si ____________________ de la suprafata scoartei terestre.

d) _________________ si ___________________ sunt roci folosite in constructie.

e) ____________________ se formeaza prin intarirea nisipului si pietrisului.

f) ______________ este un calcar tare si lucios de culoare alba sau neagra folosita in constructia monumentelor.

g) ____________________ si __________________ sunt roci dure si rezistente folosite in constructia drumurilor.

h) Cerealele cresc cel mai bine pe solurile _______________________ .

i) Minereurile sunt _________________________ si __________________________________.

j) Principala sursa de obtinere a lemnului este __________________________ .

2. Uneste cu raspunsul corect:

a) In zona de campie avem                                                               ____ salina si din apa marilor si a oceanelor.

b) In zona de deal avem                                                                     ____ carbunii.

c) In zona Montana solul este acoperit de                                             ______ petrolul.

d) In zona Montana spre varf solul este inlocuit de                               ______ aluminiu, aur, arama, argint.

e) Solul lipicios de culoare galbuie este                                                 ______ o roca negricioasa.

f) Minereul feros este o                                                                            ______ solul negru (fertil).

g) Din minereurile neferoase se obtin                                                    _______ argila.

h) Rocile formate in subsol prin putrezirea                                            ________ stanci.

       materiei vegetale sunt

i)In subsol din resturile putrezite ale animalelor                                  _______ paduri de conifere

      moarte si descompuse se formeaza

j) Sarea se extrage din                                                                             _________ solul brun – roscat.

3. Adevarat sau fals?

a)      Solul negru este fertil si bun pentru culturile de cereale si legume. _____ 

b)      Solul brun roscat este cultivat cu legume si cereal. ______

c)      Argila este impermeabila, nefertila si folosita de olari.

d)     Pentru a se evita eroziunea solului se fac terasari si impaduriri. ____

e)      Fonta este grea si se sparge daca este lovita. ____

f)       Fierul este un metal cenusiu si dur si nu se sparge la lovire. ___

g)      Gazele naturale sunt corpuri gazoase, au culoare, au miros si nu se aprind. ___

h)      Bogatiile sunt inepuizabile. _____

i)        Defrisarile masive trebuie evitate deoarece duc la disparitia unor unor mari suprafete de paduri. ____    

j)        Celuloza, hartia si mobile se obtin din carbine. _____

4. Realizeaza o scurta compunere legata de resursele naturale de hrana.

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