Cbse cce syllabus for class x science.2010-11 (first term)



1. Chemical Substance -29 marks
2. World of living -19 marks
3. Effects of Current -26 marks
4. Natural Resources -06 marks

Unit : Chemical Substances - Nature and Behaviour
Chemical reactions : Chemical Equation, Balanced chemical equation, implications of a balanced chemical equation,
types of chemical reactions : combination, decomposition, displacement, double displacement, precipitation,
neutralization, oxidation and reduction.
Acids, bases and salts : Their definitions in terms of furnishing of H+ and OH- ions, General properties, examples
and uses, concept of pH scale(Definition relating to logarithm not required), importance of pH in everyday life;
preparation and uses of sodium hydroxide, Bleaching powder, Baking soda, washing soda and Plaster of Paris.
Metals and non metals : Properties of metals and non-metals, reactivity series, formation and properties of ionic
compounds, basic metallurgical processes, corrosion and its prevention

Theme : The world of The Living (20 Periods)
Unit : World of Living
Life Processes : "living being". Basic concept of nutrition, respiration, transport and excretion in plants and animals.
Control and Co-ordination in Animals and Plants : Tropic movements in plants; Introduction to plant hormones;
control and co-ordination in animals : nervous system; voluntary, involuntary and reflex action, chemical co-ordination:
animal hormones.
Theme : How things work. (32 Periods)
Unit : Effects of Current
Electric current, potential difference and electric current. Ohm's law; Resistance, Resistivity, Factors on which the
resistance of a conductor depends. Series combination of resistors, parallel combination of resistors and its applications
in daily life. Heating effect of Electric current and its applications in daily life. Electric Power, Inter relation between
P, V, I and R.

Magnetic effects of current : Magnetic field, field lines, field due to a current carrying conductor, field du
current carrying coil or solenoid; Force on current carrying conductor, Fleming's left hand rule. Electro magn
induction. Induced potential difference, Induced current. Fleming's Right Hand Rule, Direct current. Alternat
current : frequency of AC. Advantage of AC over DC. Domestic electric circuits.
Theme : Natural Resources (8 periods
Unit : Sources of energy
Different forms of energy, conventional and non-conventional sources of energy: fossil fuels, solar energy; biog
wind, water and tidal energy; nuclear energy. Renewable versus non-renewable sources
Practical should be conducted alongside the concepts taught in theory classes
1. To find the pH of the following samples by using pH paper/universal indicator.
a. Dilute Hydrochloric acid
b. Dilute NaOH solution
c. Dilute ethanoic acid solution
d. Lemon juice
e. Water

f. Dilute sodium bicarbonate solution.
2. To study the properties of acids and bases HCl & NaOH by their reaction with
a. Litmus solution (Blue/Red)
b. Zinc metal
c. Solid sodium carbonate
3. To study the dependence of potential difference (V) across a resistor on the current (I) passing through it and
determine its resistance. Also plot a graph between V and I.
4. To determine the equivalent resistance of two resistors when connected in series.
5. To determine the equivalent resistance of two resistors when connected in parallel.
6. To prepare a temporary mount of a leaf peel to show stomata.
7. To show experimentally that light is necessary for photosynthesis.
8. To show experimentally that carbon dioxide is given out during respiration.



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