CBSE Class 10   CBSE Class 10 Science

About the CBSE Class 10 Science category (1)
Draw a path of light ray passing through a prism. Label angle of incidence and angle of deviation in the ray diagram (2)
A student sees that needle indicates 17 divisions in ammeter while performing an experiment to verify Ohm’s law (2)
Student conducted an experiment to show CO2 is released during respiration. List two precautions? (2)
A student observed a permanent slide showing asexual reproduction in yeast (2)
Observe when you drop a few drops of acetic acid to a test tube containing: Phenolphthalein (2)
(a) What do you understand by “Watershed Management”? (2)
(a) “Improvements in our lifestyle have resulted in greater amounts of waste generation.” (2)
(a) What is reactivity series? (2)
1. What kind of defect in vision is she suffering from? (2)
1. Draw a neat diagram of human brain and Label Medulla and Cerebellum (2)
Draw the structural formulae of all the possible isomers (2)
In bow many ways one can join the models of six carbon atoms and fourteen hydrogen atoms (2)
Find the direction of magnetic field associated with a current carrying conductor (2)
(a) To which category of diseases AIDS belong? Name its causative organism (2)
Why are fossils considered important in the study of evolution? (2)
“pH has a great importance in our daily life” explain by giving three examples (2)
Rohit focused the image of a candle flame on a white screen using a convex lens (2)
How do Mendel’s experiments show that traits may be dominant or recessive? (2)
Explain the ways in which glucose is broken down in absence of oxygen (2)
Differentiate between the Mendeleev’s periodic table and Modern periodic table (2)
1. Name the gas collected at anode and cathode (2)
Name the electric device that converts mechanical energy into electrical energy (2)
Why is there a need to harness non-conventional sources of energy? Give two main reasons (2)
An object of height 1.2 m is placed before a concave mirror of focal length 20 cm (2)
An element 'X' has mass number 35 and the number of neutrons, is 18 (2)
1. In which direction does he move the lens to focus the flame on the screen? (2)
Mention the essential material (chemicals) to prepare soap in the laboratory (2)
In the experimental set up for determination of resistance of a given resistor (2)
A Zinc granule changes the colour of ferrous sulphate and an iron nail changes the blue colour of copper sulphate (2)