We got an empty soda bottle. we molded dough around it. we filled the bottle with warm water and red food coloring. we added soap and baking soda. at the fair, we added vinegar to our volcano. it erupted perfectly. it looked like hot lava flowing down the sides. guess who won first place? we did! 1. why do you think the author wrote the first paragraph? 2. explain your answer. 3. why do you think the author wrote the second paragraph? 4. explain your answer.