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Nisha and Neha were playing together on a street where they accidentally collided with each other and fell down. After that, Neha started feeling pain in her elbow and could not bent it easily. Nisha also developed discomfort in one of her wrists and had difficulty in writing. They visited doctor who told them that their joints were injured. Identify their injured joints and select the correct option regarding them.

The circuit diagram shows four different switches and some wires connected to a light bulb, an electric oven and a printer.

Which of the switches must be closed in order to have the following energy conversion only?
Chemical energy → electrical energy → kinetic and sound energy

AS₂ only
BS₁ and S₂ only
CS₁ and S₃ only
DS₁, S₂ and S₄ only

Select the incorrect match from the following.

AVenus - Called morning or evening star
BSaturn - Its rings are made of ice, rocks and dust
CJupiter - Largest and fastest spinning planet
DMercury - Hottest planet

is a source of _________.

AWoollen socks and gloves
BRaincoat and gumboots
CCotton frock and sari
DNone of these

Three identical bulbs namely P, Q and R are connected to a battery as shown. What will happen when the circuit is closed?


A R will glow bright but Q and P will be dim.
B P, Q and R all will glow equally bright.
C Q and R will immediately burnout.
D P will glow bright, but Q and R will be dim.

Look at the Venn diagram. Which of the following objects described below are most likely to be I, II and III? Choose the correct option.

Soham was given a mixture of camphor, iron filings, sawdust and salt.
Which of the following represents the correct sequence of steps to separate all the components of this mixture?

A Winnowing, filtration, separating funnel and magnetic separation
B Sedimentation and decantation, heating, filtration and evaporation
C Magnetic separation, heating, filtration and evaporation
D Sedimentation and decantation, handpicking, filtration and evaporation

Refer to the given flow chart and select the incorrect option.


APart P will help a student think, learn and recall her lessons.
BPart Q will help a child to learn the art of riding a bicycle.
CPart R controls our breathing and heartbeat even when we are asleep.
DPart Q will help a person retract his hand when touched by a hot object.

Refer to the given figure of human digestive system. What is X here and what is its function?


A Small intestine - Absorbs nutrients from digested food
B Stomach - Breaks down food using acids and enzymes
C Appendix - Has no specific function in the body
D Rectum - Temporary storage of faeces before being expelled out of the body.

Which of the following statements are correct?
(i) The colour of light will affect the characteristics of the shadow.
(ii) If light is allowed to pass through a piece of muslin cloth, a lighter shadow will be formed.
(iii) The magnetic properties are induced into an iron bar till the magnet is kept near it.
(iv) Bulb has only one terminal to connect the filament with the circuit.

A (i) and (iv) only
B (i), (ii) and (iii) only
C (ii) and (iii) only
D (iii) and (iv) only