The water in a lake is frozen completely at 0°C. What happens to the temperature of the water as ice starts forming?
AIt increases above 0°C
BIt remains constant at 0°C
CIt decreases below 0°C
DIt first increases then decreases
DSCScience
Which process in the water cycle is responsible for the formation of clouds?
APrecipitation
BCondensation
CTranspiration
DInfiltration
Class 9Science
A body falls freely from the top of a tower. It reaches the ground in 3 seconds. What is the height of the tower? (g = 10 m/s²)
A20 m
B30 m
C45 m
D60 m
Class 6Science
Which of the following planets has the longest period of revolution around the Sun?
AJupiter
BSaturn
CNeptune
DUranus
Class 7Science
Which gas is released during photosynthesis?
ACarbon dioxide
BNitrogen
COxygen
DHydrogen
Class 8Science
Which of the following is an example of a biodegradable plastic?
APolythene
BPolystyrene
CPHA (Polyhydroxyalkanoate)
DPVC
About Science Mock Tests
Science covers physics, chemistry, and biology concepts for classes 6 through 10 as per NCERT and CBSE curriculum. Topics include matter, energy, force, light, sound, electricity, magnetism, chemical reactions, acids and bases, metals and non-metals, cell biology, anatomy, ecology, environment, and scientific methods. Practice with comprehensive science questions to build conceptual clarity and prepare for Class 6-10 examinations and competitive science tests.
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