Chemical Effect of electric Current

1) Give some examples of good conductors and poor conductor liquids -

Good Conductor liquids                            Poor conductor liquids

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2) Fill in the blanks :-

i) Distilled water is _________________ of electricity.

ii) Bulb gets heated and glows due to _____________ effect of electric current

iii) The process of depositing a layer of any desired metal on another material by

means of electricity is called ______________.

iv) Most liquids that conduct electricity are ________, ________ and _________.

3. Give three examples of electroplating.

i) ....................................

ii) ....................................

iii) ....................................

 MICROORGANISMS

Q1. Fill in the blanks:

(a) Microorganisms can be seen with the help of a________.
(b) Blue green algae fix _______ directly from air to enhance fertility of soil.
(c) Alcohol is produced with the help of ________.
(d) Cholera is caused by __________.

Q2: Why are children vaccinated?

Q3 Define Immunity.

Q4: List the type of bacteria recognized based on shape.

Q5: Name the most common vector of communicable diseases.

Q6: Define the term fermentation.

Q7: Name diseases caused by protozoa?
Q8: Name the diseases caused by a virus.
Q9: Give examples of algae
Q10: Give names of fungi.
Q11: Name any two protozoa.
Q12: Name the organism and its type which converts milk into curd.
Q13: Which microbe is used in production of alcohol.
Q14: Give an example of an antibiotic.