CBSE Class 9th Science Important Practical Based Questions
Below article Focuses on various important practical based questions for class 9th science CBSE students for the final preparation of examination, questions are more preferable for the advanced preparation for the exam.
All the below questions updated by our experienced faculty and an experience team for providing you the best preparation for your final examination the below articles contains all the practical based important questions which are mostly and have maximum chances for asking in examination
Here the below article for the most important practical based questions for class 9th science:
CBSE Class 9 Science important practical based questions
Question. In which of the two, glycerin or kerosene, the loss in weight of a solid when fully immersed in them will be more and why ?
Question. The frequency of a source of sound is 100 Hz. How many times does it vibrate in a minute?
Question. When a body hanging with the hook of a spring balance is immersed in a liquid, state the factor due to which the reading of spring balance decreases. Define the factor.
Question. Mention the two precautions to determine the boiling point of water in laboratory.
Question. A student recorded the mass of dry raisins as 2.0 g and mass of raisins after soaking as 3.5 g. Calculate the percentage of water absorbed by raisins. Write one precaution for this experiment.
Question. Mention two features adopted by birds which help them to fly.
Question. A sound wave travels at a speed of 340m/s. If its wavelength is 2 cm, what is the frequency of the wave? Will it be in the audible range?
Question. A free falling object eventually stops on reaching the ground. What happens to its kinetic energy?
Question. Name the adaptation of fish which helps it in each of the following:
Question. A baby is not able to tell her/his caretakers that she/he is sick. What would help us to find out that the baby is sick?
Question. List any two precautions you must take while finding the melting point of ice and boiling point of water.
Question. When dipped in a fluid, name the factor on which the loss in weight of a solid depends. Name the two forces which act upon the solid dipped in the fluid.
Question. In an experiment to determine the boiling point of water, state reason for the following:
(i) Pumice stone pieces are added to water in the beaker.
(ii) A glass stirrer is used.
Question. A mixture of sand, powdered glass and common salt is dissolved in water and then filtered. Name the substance left on filter paper. Name the substance in the filtrate.