Sugar, salt, mustard oil, sand, sawdust, honey, chalk powder, petals of flower, soil, copper sulphate crystals, glucose, wheat flour are some substances given to Paheli. She wants to know whether these substances are soluble in water or not. Help her in identifying soluble and insoluble substances in water.

Explanation

To determine whether the substances given to Paheli are soluble or insoluble in water, we can categorize them based on their properties. Here’s a step-by-step solution:

### Step 1: List the substances
The substances provided are:
- Sugar
- Salt
- Mustard oil
- Sand
...