Can you think of creating a shape that would give a circular shadow if held in one way and a rectangular shadow if held in another way?

Draw (a) a leaf, (b) a taproot and (c) a flower, you have studied for Table 7.3.

A thick coating of a paste of Plaster of Paris (POP) is applied over the bandage on a fractured bone. It becomes hard on drying to keep the fractured bone immobilised. Can the change in POP be reversed?

You are given an iron strip. How will you make it into a magnet?

Name two foods each rich in:
(a) Fats
(b) Starch
(c) Dietary fibre
(d) Protein

Name the part of the plant which produces its food. Name this process.

Name two items that are made from coconut fibre.

Why can a pace or a footstep not be used as a standard unit of length?

Tick (√) the statements that are correct.
(a) By eating rice alone, we can fulfill nutritional requirement of our body. ( )
(b) Deficiency diseases can be prevented by eating a balanced diet. ( )
(c) Balanced diet for the body should contain a variety of food items. ( )
(d) Meat alone is sufficient to provide all nutrients to the body. ( )

Given below are the names of some objects and materials:
Water, basket ball, orange, sugar, globe, apple and earthen pitcher Group them as:
(a) Round shaped and other shapes
(b) Eatables and non eatables

State whether the statements given below are True or False.
(i) Stone is transparent, while glass is opaque.
(ii) A notebook has lustre while eraser does not.
(iii) Chalk dissolves in water.
(iv) A piece of wood floats on water.                                                                                                                                                                                                (v) Sugar does not dissolve in water.
(vi) Oil mixes with water.
(vii) Sand settles down in water.
(viii) Vinegar dissolves in water.

You are given an iron strip. How will you make it into a magnet?

Draw (a) a leaf, (b) a taproot and (c) a flower, you have studied for Table 7.3.

How will you show that air is dissolved in water?

The layer of air around the earth is known as ___________.

Name the major nutrients in our food.

Explain why the bulb would not glow in the arrangement shown in Fig. 12.13.

Column I shows different positions in which one pole of a magnet is placed near that of the other. Column II indicates the resulting action between them for each situation. Fill in the blanks.

Column I                           Column II
N - N                                   _________
N - _________                    Attraction
S - N                                   _________
_________ - S                    Repulstion

If a plant has leaves with reticulate venation, what kind of roots will it have?

Which of the following leaves have reticulate venation?
Wheat, tulsi, maize, grass, coriander (dhania), China rose

The handles of the tools like screwdrivers and pliers used by electricians for repair work usually have plastic or rubber covers on them. Can you explain why?