Science [1 Marks Each] QUE - ANS

Eatables: Water, Orange, Sugar, Apple Non-eatables: Basketball, Globe, Earthen pitcher

Round shaped: Basketball, Orange, Globe, Apple, Earthen pitcher Other shaped: Water, Sugar

Objects are sorted on the basis of their appearance, hardness, solubility, transparency and whether it floats on water or sinks in it.

Food is cooked in utensils and hence utensils are often heated. If cooking utensils were made of wood they would catch fire as soon as they are kept on gas stove. Hence, cooking utensils are not made of wood.

Five materials that sink in water are: Iron, brick, glass, brass, stone.

Five materials that float on water are : Wood, plastic, cork, thermocol, sponge and rubber.

In iron chair, a chair is an object and iron is material.

Salt is called a soluble substance.

Materials that can be compressed by hand easily are called soft materials.

Oxygen gas dissolved in water is very important for the survival of aquatic organisms.

Oxygen and carbon dioxide are soluble in water.

A tumbler is used to store liquid. Liquid can’t be stored in cloth.

Anything that has mass and occupies space is called matter. The matter used in making an object is called material.

We choose a material to make an object depending on its properties and the purpose of use.

The similarity between oil, kerosene and water is that they are all in a liquid state.

Wood, plastic

Kerosene, oil

Iron, copper, aluminium, silver

Wood

Window panes, tumbler

Bucket, lunchbox

Playing marble, ball

Sand

Sand

Boat

Baby

Items that float on water: Plastic ball, balloon, feather, matchstick, wood, thermocol, cane, boat, hair. All the above items float on oil and kerosene also.

The objects which shine from the given are : Glass bowl and steel spoon.