Mixtures: Sugar and rice and Fizzy Fountain.

In order to learn some properties of mixtures we are going to make some experiments.
 First, we mix rice and   water together and we predict what is going to happen. Then we mix sugar and water. Sugar and water form a homogeneous mixture and rice and water form a heterogenious mixture. After that we put oil and water into a glass and we observe that they don´t mix together, oil is always on top.  To end with our experiment we add some drops of food colouring to oil and water and we put two efervecent tablets into the mixture. Soon we see a fizzy fountain!
When the bubbles (gas and water ) go up,  the gas goes away when it reaches the surface and the water goes down again, this is a pretty effect!