Class - VII
Subject : General
Science
Time : 21/2 hrs. Marks.
100
Group - A (Short
Questions)
25
1. What is heat
? What is temperature ? 2
2. Write the
names of five layers of atmosphere . 2
3. State the
two laws of reflection. 2
4. What do you
mean by magnetic field ? 2
5. Write the
characteristics of virus. 2
6. What are the
main characteristics of Arthropoda ? 2
7. Define
digestion. 2
8. breaks the fat into
fatty acid and Ilycerol 2
9. How many
elements are there in the world.
10. What does
hydis mean ?
12. Which two
metals are used for the preparation of hydrogen gas ?
13. Who has
proved hydrogen as an element ?
14. What happens
when dry ice is heated ?
15. Which gas is
present in the smoke that come sout from mills and kitchen ?
16. How is carbon
di-oxide collected in the laboratory.
17. What would be
produced it Magnesium are burnt in Oxygen.
18. Write the
name of one catalyst.
Group -B (Physics
Past)
(Eassy type questions) Marks.
75
1. The earth
itself is a huge magnet ; explain the statement. 6
2. What do you
mean by a shadow, an umbra and a penumbra ? Explain with figures. 6
3. State
pascal's law and give an experimental verification of it. 6
4. Describe the
expansion of solid and expansion of gases and liquids ? 7
Group -C
(Chemistry past )
5. Describe how
carbon di-oxide is prepared in the laboratory. 6
6. a) What happen if carbon di-Oxide is passed in a
clear salution of lime water fora long time ? 3
b) Oxygen is collected by downward displacement
at water. This demonstrates two properties of
Oxygen. what are the properties.
7. a) Write name of two
chemical rubstawes which are used for the preparation of Oxygen in the laboratory. 2
b) What is rust. what is the effect at rust on
iron ? 4
8. a) Hydrogen is a much lighter gas how would you prove this. 4
b) what are the component of water ? 2
Group - D
Biology part
9. Draw and
lebel the diagram of digestive system. 6
10. Write
identifying characteristics of protozoa and porifera. 6
11. Describe the
types of leaves according to the durability. 6
12. Describe
morphology and life history of Entamoeba. 7
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