Make a list of solids, liquids and gases from your surroundings. (These substance may be orgnic or chemical). Separate mixtures from them and clasify them into solutions, colloids and suspensions.

Identify / collect the mixtures available at you surroundings and make a report on separation process. Classify them and report in the form of a table.

Collect various plastic objects from your surroundings and separate them as coded or the containers, water bottles, soft drink bottles, kithenware, non-stick pan.

Collect different plastic items from your surroundings. Classify them as transparent, opaque and translucent.

Make a list of items from your kitchen like utensils, food ingredients etc. Classify them as sinks/floats and soluble/ insoluble.

From above list which of them are grown in your village?

Consider that you are passing by a garbage disposal area and you immediately cover your nose. Arrange the events belown in a logical order by marking them from (i) to (v) to trace the events that happen in the nervous system from detection of foul smell (stimulus generation) to covering your nose (response). (i) At the end of the axon, electrical impulse releases chemicals. (ii) Stimulus received by the dendritic cells of a neuron sets off chemical reaction that creates an electrical impulse. (iii) Electrical impulse transmitted through cell body and axon. (iv) The chemicals cross the synapse and reach the next neuron. Similarly, the electrical impulse crosses several neurons. (v) Finally, the impulse is delivered from neuron to the gland that helps in recognition of the foul smell and muscle cells that help in covering the nose.

Consider that you are passing by a garbage disposal area and you immediately cover your nose. Arrange the events belown in a logical order by marking them from (i) to (v) to trace the events that happen in the nervous system from detection of foul smell (stimulus generation) to covering your nose (response). (i) At the end of the axon, electrical impulse releases chemicals. (ii) Stimulus received by the dendritic cells of a neuron sets off chemical reaction that creates an electrical impulse. (iii) Electrical impulse transmitted through cell body and axon. (iv) The chemicals cross the synapse and reach the next neuron. Similarly, the electrical impulse crosses several neurons. (v) Finally, the impulse is delivered from neuron to the gland that helps in recognition of the foul smell and muscle cells that help in covering the nose.

hydrogen-oxygen fuel cell may have an acidic or alkaline electrolyte. The half-cell reactions are To maximize the power per unit mass of an electrochemical cell, the electronic and electrolytic resistances of the cell must be minimized. Since fused salts have lower electrolytic resistances that aqueous solutions, high-temperature electrochemical cells are of special interest for practical applications. High temperature also allow the use of liquid metal electrode, which make possible higher current densities than solid electrodes How many grams of water is produced in the cell if 2 Faradays of charge is derived from the fuel cells