This is a heterogeneous mixture because the rice and water can still be seen and separated. They do not completely blend into one substance.The main components of a rice and water mixture are:Rice – A solid component made of starch, used as food.Water – A liquid component, used to cook or soak the rice.Example:When cooking rice, the water is absorbed by the rice, but before cooking, you can still separate the two easily by draining the water.