Join / Login
All Questions and Answers

Olympiad Mock Test Class 8 Science 15 to 20

Paper 20

20 Qs

Related questions

An object placed 4 m from a plane mirror is shifted by 0.5 m away from the mirror. What is the distance between the object and its image?

View solution

Plastic is coated with melamine to make it

View solution

The same size image in all positions of the object is obtained by a

View solution

Which of the following exists in crystalline form?

View solution

Which force is used by an archer to pull a bow?

View solution

Atoms combine through the

View solution

Which fuel is the cleanest?

View solution

The streaks of bright light and sound produced during lightning is due to the meeting of

View solution

The function of thyroxine hormone in frog is to control _______.

View solution

What is the calorific value (in kJ/kg) of cow dung cake?

View solution

Which of the following processes occur once a month in an adolescent girl?

View solution

Metals react with water to form oxides or hydroxides and

View solution

How many letters of EXAMINATION word are not changed when the word is seen by reflection in a plane mirror?

View solution

What is the number of vibrations made by a body in one second called?

View solution

Which of these reproduces by regeneration?

View solution

The burning of plastic is not permitted as they pollute the environment by releasing

View solution

Which actions requires both a push and a pull?

View solution

A carrom board is usually powdered before playing for

View solution

A rock undergoes stress. This stress depends on

View solution

Which of these organisms is unicellular, causes fermentation of sugar solutions and respires anerobically?

View solution

Paper 19

20 Qs

Related questions

Paper 18

19 Qs

Related questions

An object is placed at 15 cm in front of a plane mirror. If the object is moved towards the plane mirror, which of the following changes will take place?

View solution

What kind of silk is rayon?

View solution

An electrolyte is a

View solution

Which of the following fungi exhibit the characteristics given below?
X - Umbrella shaped fruiting body
Y - Mycelium lies beneath the surface of the soil
Z - Gills are the spore bearing organs

View solution

Frictional force is independent of area of contact but still brakes of very small contact are not preferred. Why?

View solution

Which of the following is a good conductor of electricity?

View solution

Electric charge can flow through

View solution

Which pair of instruments have both the higher amplitude and higher frequency of sound?

View solution

In which case is friction a disadvantage?

View solution

X is a black, thick liquid with unpleasant smell. It is obtained during the processing of coal. It is used for preparing napthalene balls. Identify X.

View solution

Air pressure is also known as atmoshperic pressure. How is it caused?

View solution

Identify the use of a seed drill.

View solution

How many dots does the Braille system use?

View solution

Which of these can you use as a substitute for glass in windows?

View solution

On adding sulphur dioxide to water you get

View solution

Observe the figure given above.
Identify the electrolyte Z.

View solution

Which of the following will occur if the fallopian tube is ligated?

View solution

The energy of vibrations measured on the Richter scale increases by steps of about

View solution

Which of these activities help to maintain biodiversity?
I - Protect endangered species
II - Set up forest reserves
III - Clear land for agriculture

View solution