SAI MANAIR HIGH SCHOOL

NEET, IIT-JEE FOUNDATION

SUMMATIVE ASSESSMENT-II
Class : VII(A) Marks: 80
Subject : SCIENCE Time: 2 ½ Hr
PHYSICS
I. Answer any three of the following 3X2=6M
1. A Current of 3 amp flows through a conductor for 4.0 s, Find the amount of the charge passed through the
conductor?
2. Define : Radiation
3. What is Optical medium?
4. What is Amplitude?
II. Answer any two of the following 2X4=8M
5. Classify the beam of light?
6. A bar magnet of pole strength 50 ampere meter is cut into two equal pieces along it’s axial line. Find the pole
strength of each piece?
7. Classify the waves based on propagation?
III. Answer any One of the following 1X6=6M
8. Describe- Electric fuse.
9. Explain – Mechanical method
IV. Chose the correct answer 5X1=5M
1. Speed of light in air ( )
A) 3 X 108 m/s B) 3 X 1010 m/sC) 3 X 10-8 m/s D) None
2. Mercury thermometer works on the principle of ( )
A) Expansion of glass B) Expansion of mercury C) Contraction of mercury D) Both B & C
3. Magnetic length is equal to ___ times, its geometric length ( )
4 5 6 6
A) B) C) D)
5 6 5 7
4. The Cell that Can be recharged is called ( )
A) Electric cell B) Fuel cell C) Primary cell D) Secondary cell
5. Current is produced by ( )
A) Electrons at rest B) Flow of electrons C) Protons at rest D) Neutrons in motion
CHEMISTRY
I. Answer any three of the following 3X2=6M
1. Define atom
2. Write about Arrhenius theory of Acid and base?
3. Difference between Deliquescence & Hygroscopic salts?
4. Write the uses of Phosphorus?
II. Answer any two of the following 2X4=8M
5. What are the causes of temporary and permanent hardness of water?
6. Write the allotrophs of sulphur?
7. Explain formation of cation & anion?
III. Answer any One of the following 1X6=6M
8. Write the Preparation method of oxygen
9. Explain gan ’s permutit process?
IV. Choose the correct answer 5X1=5M
1. __________________ Pollutant Responsible for Bhopal gas incident ( )

.A) Methyl isocyanate CH3NCO B) Cl2 C) H2S D) SO2

2. Carbogen is used as ( )

A) Artificial respiration B)Oxyhydrogen flame C) to fill balloons D) to produce ozone

3. Pick out the zeo lite from the following ( )

4. Atomic number denoted by ( )

A) X B) Z C) A D) l

5. Light Consists of small energy bundles known as ( )

A) radiation B) Wave length C) Quanta D) Amplitude

BIOLOGY
I. Answer any two of the following 2X5=10M
1. Explain Excretory system with a labelled diagram?
2. Explain classification of living things?
3. Describe the fusion of gametes with labelled diagram?
4. Define nucleus and write their functions?
II. Answer any four of the following 4X3=12M
1. What are the major Kinds of micro organisms?
2. Write about Circulatory system in humans?
3. What are the types of respiration?
4. What is a Carbon Cycle?
5. How many levels do living things classified and what are they?
III. Choose the correct answer
8X1=8M
1. Which enzyme is present in Saliva? ( )
A) Lipase B) Trypsin C) Pepsin D) Amylase
2. Which acid is secreted by the walls of stomach ( )
A) Sulphuric acid B) Acetic acid C) Nitric acid D) None
3. The Rearing of silk worms to obtain silk is called ( )
A) Sericulture B) Horticulture C) Agriculture D) Aqua culture
4. Plant Cell wall is made up of ( )
A) Cuticle B) Cellulose C) Cutin D) Peptidoglycan
5. Germ theory of disease was established by ( )
A) Lousispasteur B) Robert Hooke C) Robert Koch D) Robert Brown
6. The Science of classification is called ( )
A) Taxonomy B) Physiology C) embryology D) Philosophy
7. Nitrogen constitutes about % of atmosphere ( )
A) 58% B) 25% C) 10% D) 78%
8. The Term “Cell” is coined by ( )
A) Robert Hooke B) Robert Brown C) De Roberti’s D) Melvin calvin