Question

Activity 4
To group objects on the basis of floating or
sinking in water
Collect materials like dried leaves, a lemon,
lid of a pen, a sharpener, an eraser, thin
wooden sticks, a coin, a metal key, a sponge,
a sewing needle, pins and an iron nail.
Take a tumbler and fill water in it. One-by-one,
place each of these materials in the tumbler.
Observe whether it floats or sinks in water. Group
them in the table given below:
Object
Floats/sinks Denser than water or
less dense than water​

Answer 1

Explanation:

To group objects on the basis of floating or

sinking in water

Collect materials like dried leaves, a lemon,

lid of a pen, a sharpener, an eraser, thin

wooden sticks, a coin, a metal key, a sponge,

a sewing needle, pins and an iron nail.

Take a tumbler and fill water in it. One-by-one,

place each of these materials in the tumbler.

Observe whether it floats or sinks in water. Group

them in the table given below:

Object

Floats/sinks Denser than water or

less dense than water