1. Volume: This measures the amount of space a liquid occupies. It's typically measured in units like milliliters (ml), liters (L), gallons (gal), or ounces (oz). You would use tools like measuring cups, graduated cylinders, or beakers to measure volume.

2. Weight: This measures the mass of a liquid. It's typically measured in units like grams (g) or kilograms (kg). You would use a scale to measure weight. This method is less common for everyday use, but it is essential in scientific settings and for some industrial applications.