Synthetic Fibres and Plastics — Science STD 8 — Question

In which female reproductive organ does the embryo get embedded?

You are provided with an experimental setup as shown in Figures (a) and (b). On keeping the test tube (Figure b) in a beaker containing hot water (~ 70°C), the water level in the glass tube rises. How does it affect the density?

A stone sculpture weighs 225 g and has a volume of 90 cm³. Calculate its density and predict whether it will float or sink in water.

Which cells transmit message between the brain and other parts of the body?

Fill in the blanks. If you pass current through copper sulphate solution, copper gets deposited on the plate connected to the __________ terminal of the battery.

Paheli remembers that a magnet attracts a piece of iron towards it. Is attraction also a pull? What about repulsion between similar poles of two magnets? Is it a pull or a push ?

Name the man-made fibre, made from the cellulose polymer.

What conclusion do you get from the observation that a fountain of water is created at the leaking joint of pipes of the main water supply line?

Name the smallest planet of the Solar System.

Which metal is electroplated on iron for making 'cans' used for storing food?