A. Water expands when solidifying
B. Water becomes heavier
C. Ice becomes denser
D. Molecules compress closer
Everyday Science
When water freezes, it expands in volume by about:
A. 5%
B. 7%
C. 9%
D. 11%
The thyroid gland located at the front of neck produces __ hormones?
A. Thyroxine
B. Adrenaline
C. Calcitonin
D. None of these
Saturated hydrocarbons are called:
A. Alkanes
B. Alkynes
C. Alkenes
D. None of these
Which is the name of the process of splitting bigger hydrocarbon into smaller hydrocarbon:
A. Decomposition
B. Combustion
C. Cracking
D. None of these
The volume of an atom is calculated by using:
A. Atomic mass and density
B. Atomic charge and energy levels
C. Atomic radius and formula for volume of a sphere
D. None of these
Pollen grains are produced by:
A. Ovary
B. Stigma
C. Petal
D. Anther
Soda water was invented by:
A. Tivadar Puskas
B. James Leonard Plimpton
C. Petrache Poenaru
D. Joseph Priestley
Study of the evolution of man as an animal:
A. Chronology
B. Anthropology
C. Archaeology
D. None of these
Radioactivity can be detected by use of:
A. Calorimeter
B. Palometer
C. Geiger counter
D. None of these