Test 2 primary 4

Test (2)
A) Complete:-
1-...........Types of balance include …………..and
2- ......... Liquids and …………….have indefinite
3- ........Sequence of four seasons results from the rotation of
.............around

B) Write the scientific term :-
1- The temperature expected at night ( )
2- The movement of air from high pressure to low pressure ( )
3- An apparatus used to measure wind speed ( )

C) Put ( ) or ( X ) :-
1- Oxygen represents ½ of the air volume ( )
2-The third planet away from the sun is the earth ( )
3- Equal volume of different substances has different masses ( )

D) What happen if:-
1- We leave a glass filled with ice in air for a few minutes
2- We leave a beaker containing clear lime water in air
3-Boiling water and exposing the products to a cold surface

E) Give reason:-
Sun is a star while earth is a planet

thank you miss mona