Sorting Materia...

In which of the following sets are the materials liquid under ordinary conditions?

Which of the following materials is pliable?

Which of the following objects do not sink in water?

Which of the following gases is important for aquatic animals?

Which of the following statements is/are correct?
a. Rubber is a bad conductor of electricity.
b. Ice floats on oil.
c. Wax floats on oil.

Shreya was given a few objects as listed below and asked to classify them into groups. Into how many groups can she classify the objects?

Which of the following substances is commonly used for making tumblers, toys, pens and pipes?

Which of the following statements is/are true?
a. Metals lose their luster gradually when exposed to air and moisture for long time. 
b. Stone is a transparent material.
c. Ice sinks in water.

Shreya is provided with the following objects and asked to put them in a bucket containing water.
Wooden toy, iron nail, stone, plant leaf, and plastic ball
Which among the given objects will float and which will sink in water?

Which of the following statements is/are incorrect?
a. Iodine crystals have lustre.
b. All metals have a silvery white lustre.
c. Gases are non-lustrous.

Which of the following can be classified as hot, luminous and naturally occurring object(s)?

Which of the following statements is incorrect?

Arrange the following materials in the decreasing order of their compressibility and choose the correct option.
Iron, candle, gold, chalk, sponge, cotton

Which of the following objects is not translucent?

Classify the materials given in the table and choose the correct option.
(I) Transparent objects
(II) Translucent objects
(III) Opaque objects