Core Skills Analysis
Science
Mathematics: Rowan used fractions in a real experiment by measuring 1/4, 2/4, and 3/4 teaspoon of yeast. This helped him see that fractions can represent different amounts and can be compared to one another in a hands-on way. He also likely compared the foam heights from each flask, which involved noticing differences, ordering results, and thinking about which amount produced more or less foam. This activity gave him practice with measuring, comparing quantities, and connecting numbers to real-world outcomes.
Tips
Rowan could keep building on this experiment by making a simple results table or bar graph to show which yeast amount made the tallest foam. He could repeat the test with a different variable, such as changing the temperature of the liquid, while keeping everything else the same to see how another fair test works. He could also write a short science explanation using the words “predict,” “observe,” and “conclude” to practice communicating his findings like a scientist. For a creative extension, Rowan could draw each flask and label the measurements, then compare his observations with a family member or classmate to discuss why the foam changed.
Book Recommendations
- Ada Twist, Scientist by Andrea Beaty: A curious child uses observation and experiments to ask big scientific questions.
- The Very Hungry Caterpillar by Eric Carle: A classic book that supports counting, sequencing, and noticing change over time.
- Rosie Revere, Engineer by Andrea Beaty: A story that encourages persistence, testing ideas, and learning from experiments.
Learning Standards
- Science Inquiry and Experimentation: Rowan planned a fair test, changed one variable at a time, observed results, and drew conclusions from evidence.
- Scientific Method / Variables: He identified a manipulated variable (amount of yeast) and controlled variables (peroxide, dish soap, food colouring), which matches investigation skills in Canadian science curricula.
- Measurement and Data Collection: He used exact amounts and compared outcomes across three trials, supporting data recording and comparison skills.
- Mathematics—Fractions: The use of 1/4, 2/4, and 3/4 teaspoon connected fraction concepts to measurement and comparison.
- Mathematics—Comparing and Ordering: Rowan likely compared foam heights and related them to the different yeast amounts, which supports pattern noticing and simple data analysis.
Try This Next
- Make a results chart with the three yeast amounts and foam-height observations.
- Write 3 prediction questions: Which flask made the most foam? Why?
- Draw and label the experiment setup, including the controlled variables.
- Create a short explanation sentence: "When I changed ___, the foam changed because ___."