Enfant India English School
Sub-science-1
Q.A) Choose the correct Answer of the following. (02)
1) What is electronic configuration of carbon………
a) 2,6 b) 2,4. C) 6,2. D) 4,2
2) What is molecular formula of bleaching powder…….
a) CaCo3. B) CaOH. C) CaoCl2. D) CaSO4
Q.B) Write down any four of the following. (08)
1) Distinguish between Diamond and Graphite
2) Define a) Alkane & b) Alkene
3) Write down any two uses and properties of Methane
4) Distinguish between Bathing and Washing soap
5) Write down molecular formulas of Alum,borax,
barium chloride and Washing soda
6) Distinguish between Alpha and Beta rays
“If You are planning for a year, sow rice; if you are planning
for a decade, plant trees; if you are planning for a lifetime,
educate people”
Enfant India English School
Sub-science2
Q.1 fill in the blank ( 3M)
a) hereditary characters are transferred from parents to offsprings by
……………………………… .
b) organisms produced by ____________ show mirror variation
c) Chromosome are mainly made up of __________
Q.2) match the pair ( Any 2)
A
Growth of pollen tube towards ovules
Growth of shoot system
Growth of root system
Growth toward water
B
Gravitropic movement
Chemotropic movement
Phototropic movement
Growth irrelevant movement
Hydrotropic movement
Q3 ) write a note on ` (2M)
a) Root pressure
b) reflex action
Q4) Answer in brief (any 1) (3M)
a) Explain chemical co-ordination in human and give the name and function of some hormones
b) Write a note on Down syndrome
