We bought a science kit last week. So, today we’re going to try it out. First, we have to make the hill using the mould and plaster given. Then, we will colour the hill using the water colours provided.
We put the hill into the bowl to prevent spilling as the kids want to do it in the living room. Then, we fill the middle of the hill with the baking soda. Lastly, the kids take turn to pour the vinegar onto it. When vinegar mixed with the baking soda, they will react and make a lot of bubbles flowing down the hill like the lava... The kids were amazed by the reaction. Fun!!