Question

State true or false for the following :
1. Oxygen gas is slightly soluble in water.
2. A thin polythene sheet is transparent.
3. Air is a man made material.
4. Pebbles float on water.
5. Diffusion is mixing of particles of two materials on their own.

Answer 1

1) False
2) True
3) False
4) True
5) True

Answer 2

State true or false for the following :  

1. Oxygen gas is slightly soluble in water.     TRUE

2. A thin polythene sheet is transparent.     TRUE

3. Air is a man made material.      FALSE

- Air is a natural resource.

4. Pebbles float on water.      FALSE

- Pebbles have more density than water, so they sink in water.

5. Diffusion is mixing of particles of two materials on their own.    TRUE