M.V.Herwadkar English medium school
Fa-2 2020-21
Sub Science
Marks- 40
Chemistry and Biology Std 10th
Marks-25
Q1.Fill up the blanks
4 X 1= 4M
1.Metals are found in---------- free state.
2.Alloy of Mercury is----------3.Living and non living components are called as --------4.------------- are evolved in animals as their thinking is not fast.
Q2.Answer in one sentence
5X1=5M
1.Classify response to nervous system ?
2.Define Bio degradable.
3.Define Plant harmone.
4.What happens when metal is burnt in air ?
5.What is re - activity series.
Q3.Answer Briefly
3X2=6M
1.Distinguish the chemical properties of metals and non-metals.
2.How are Tissues protected ?
3.Explain Food Pyramid .
Q4.Answer in details.
2X3=6M
1.Explain food web?
2.Explain extraction of ore?
Q5.Draw a neat labelled diagram of Human brain and describe.
Physics
15 M.
Q1.Fill up the Blanks
3X1=3M
1.A compass needle gets deflected when brought near a ----------2.The lines along which the iron filings along themselves represent ----------3.A -------- is an instrument that can detect the presence of a current in a current.
Q2. Answer the following
3X1=3M
1.What is the principle of an electric motor ?
2.State Fleming's right - hand rule.
3.Name some sources of direct current.
Q3.Answer the following.
3X2=6M
1.Explain briefly about Electromagnetic Induction.
2.List the properties of magnetic field lines.
3.Define Solenoid.
Q4.Answer in details.
1X3=3M
1.Explain construction and working of an Electric motor.
1X4=4 M