- Water is a kind of liquid
- Soil is made of solid particles
- So, a mixture of water and soil is a mixture of liquid and solid

- A mixture of water and soil is a mixture of liquid and solid
- A filter is used for separating liquid from solid particles
- Hence, a filter can be used to separate soil from water

Therefore, a filter can be used to separate soil from water
Della has a mixture of soil and water in a jar. Which of the following tools would best help Della separate the soil from the water?
- Water is a kind of liquid 
- Soil is made of solid particles 
- A filter is used for separating liquid from solid particles