I use distilled water for the experiment.

Her heart is pure, with no malice at all.

I am always moved by the purity of her heart.

He solved the problem using a new method.

In this chemistry experiment, you can obtain pure water using distillation.

In this experiment, we will learn how to distill substances.

Since he started his new job, he's been lively as if he were a fish back in water.

He is majoring in chemistry at university.

We conducted a new experiment in science class.

On cold days, cold water is especially delicious.