Saturn is less dense than water.

Answer

To determine whether the statement "Saturn is less dense than water" is true or false, we can follow these steps:

### Step 1: Understand Density
Density is defined as mass per unit volume. It is usually expressed in grams per cubic centimeter (g/cm³).

### Step 2: Know the Density of Water
The density of water is approximately 1 g/cm³. This means that 1 cubic centimeter of water has a mass of 1 gram.

### Step 3: Know the Density of Saturn
The density of Saturn is given as 0.687 g/cm³. This means that 1 cubic centimeter of Saturn has a mass of 0.687 grams.

### Step 4: Compare the Densities
Now, we compare the density of Saturn with the density of water:
- Density of Saturn = 0.687 g/cm³
- Density of Water = 1 g/cm³

Since 0.687 g/cm³ (density of Saturn) is less than 1 g/cm³ (density of water), we can conclude that Saturn is indeed less dense than water.

### Step 5: Conclusion
Based on the comparison, the statement "Saturn is less dense than water" is true.

### Final Statement
Therefore, the statement is true: Saturn is less dense than water.

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