Johnny took four substances - chalk powder, salt, sugar and honey. He mixed a spoonful of each of

the four substances one after the other in a glass of water.

He noticed that the colour of water did NOT change after he added the first two substances, but

changed after he added the THIRD substance.

Which of the following is the order in which he added the substances?

• salt, honey, chalk powder, sugar

• salt, sugar, chalk powder, honey

• honey, sugar, chalk powder, salt

• honey, chalk powder, sugar, salt

Four different objects are hung from a rod as shown below. Which of them will move the LEAST in

a breeze?

• marble

• cotton

• paper

• feather

Three identical plates P, Q and R were washed with water and immediately kept as shown in the

picture. Which plate is likely to dry completely the QUICKEST?

• P

• Q

• R

• All the three plates will take the same time to dry completely

Ojas took this picture of his dog while playing with soap bubbles. Which of following is true?

• The dog is running away from the bubble.

• The dog is in the air inside the bubble.

• The dog is in front of the bubble.

• The dog is behind the bubble.

Satish planted a mango seed in a pot and placed it in his room. After two years of care, the mango

plant grew to a height of three feet (as shown in the picture). What should he do to make the mango plant grow into a very big tree?

• add extra water everyday

• change the soil in the pot

• take it out of the pot and plant it in the ground

• place the pot outdoors for the plant to get sunlight

Which of these contains air in it?

• only the balloon

• only the balloon and the bicycle tube

• only the balloon, the bicycle tube and the empty bottle

• all of them - the balloon, the bicycle tube, the ink filler and the empty bottle

The table shows what four friends use to cook food. Who is LIKELY to cause AIR pollution while cooking?

• only Farida

• only Mala and Rita

• only Janaki and Mala

• only Janaki, Mala and Rita

Look at the picture given below. What is the main function of the organ pointed by the arrow?

• carrying food

• carrying blood

• carrying messages

• carrying air

Which process that happens in a tree is shown in this picture?

• making of food

• breathing

• resting

• losing water

Why are nights usually cooler than days?

• because the moon's light cools the parts that have night

• because the light from the stars cools the parts that have night

• because the parts having night are not facing the Sun

• because at night, the Earth is further away from the Sun