العلوم الصف الثالث الاعدادى الترم الاول

................ is considered fr om Scalar physical quantity

Sperm Fo r med in ............

A train moves at a speed (30 m/sec). a nd when the brakes is used it moves with a decelerating (3 m/sec2). Calculate the time taken to stop the train

If the number of chromosomes in liver cells of a certain living o r ganism is (32) chromosomes then the number of chromosomes in ovum cell is .............

A moving car covers a distance of (200 kilometer) through (150 min.), then its speed is ........... km/h

Reproduction by spo r ogony occurs in starfish

The nucleic acid that carries the genetic traits of the living o r ganism.

The optical piece which fo r ms laterally inverted (reversed) image a nd equal to the body is

Sudden violent nuclear reactions occur within the star which led to its explosion

The body which moves at acceleration can't move at a regular speed