Name five objects which can be made from wood.

3

(a)

Select those objects from the following which shine:
Glass bowl, plastic toy, steel spoon, cotton shirt

3

(a)

List all items known to you that float on water. Check and see if they will float on an oil or kerosene.

3

(a)

Give three common characteristics of materials.

3

(a)

Give five examples each of objects that float and sink in water.

3

(a)

List some materials that are used for making more than one type of an object.

3

(a)

It was Paheli's birthday. Her grandmother gave her two gifts made up of metals, one old dull silver spoon and a pair of lustrous gold ear-rings. She was surprised to see the difference in the appearance of the two metals. Can you explain the reason for this difference?

3

(a)

Our palm is translucent. Explain with an activity.

3

(a)

Check whether the substance disappears in water or not

Substance	Disappears in water/does not disappear
Salt	Disappears completely in water
Sugar
Sand
Chalk powder
Sawdust

3

(a)

Check whether the liquid mixes or does not mix in water.

Liquid	Mixes well/Does not mix
Vinegar	Mixes well
Lemon juice
Mustard oil
Coconut oil
Kerosene

3

(a)

Write three advantages of grouping.

3

(a)

How can materials be classified on the basis of physical state?

3

(a)

You are provided with the following materialsturmeric, honey, mustard oil, water, glucose, rice flour, groundnut oil.
Make any three pairs of substances where one substance is soluble in the other and any three pairs of substances where one substance remains in soluble in the other substance.

3

(a)

Why is it easier to hold a steel tumbler with cold milk than the one with hot milk ?

3

(a)

A solid is put in a bucket of water. It floats just below the surface of the water. What do you think is the density of the object in relation to the density of water?

3

(a)