Answer:In Grade 7 Science, the units used for measuring volume are:For Liquids: * Liters (L) and milliliters (mL) are the most commonly used units. * It's important to know that 1 mL is equal to 1 cubic centimeter (cm³).For Regular-Shaped Objects: * Cubic meters (m³), cubic centimeters (cm³), and cubic decimeters (dm³) are used. * Cubic units (length \times width \times height) are used because regular-shaped objects occupy three-dimensional space. * It's worth noting that 1 dm³ is equal to 1 Liter (L).