The Volcano Experiment with Rosie
Rosie builds a volcano for the science fair, and the experiment goes bubbly wrong!
The school science fair was tomorrow, and Rosie had a plan: a volcano that really erupted. With Tara the turtle, Rosie made a mountain from clay and painted it brown.
Inside the crater went baking soda, a squirt of soap and some green paint. Then Rosie poured in a little vinegar. FIZZ! Bubbles climbed out of the volcano, lava-red and frothy.
‘More!’ cried Tara. Rosie poured more vinegar. And more. FIZZ-FIZZ-WHOOSH! A huge wave of green foam spilled over the table and onto the floor. It reached Tara’s shoes!
They looked at each other, and burst out laughing. ‘Too much vinegar!’ said Rosie. They mopped up, and Rosie wrote in a notebook: ‘Use only a little. Measure carefully.’
At the fair, Rosie did the experiment again, perfectly. The foam rose slowly and spilled gently. Amara the elephant clapped. ‘Excellent,’ said Amara. ‘And I love your notes on what went wrong.’
The little lesson
Mistakes are part of discovering how things work.
Let’s talk about it
- What makes a volcano fizz?
- What would you do differently?
Finish stories to collect Rosie as a sticker in your Sticker Book.
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Where Do Rainbows Come From, Ella?
Ella wonders where rainbows come from, and discovers how to make one at home.
Vik Makes a Rainbow
Vik wonders where rainbows come from, and discovers how to make one at home.
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