Core Skills Analysis
Science
- Elling identified the three classic states of matter—solid, liquid, and gas—and explained how a non‑Newtonian fluid (cornstarch‑water mixture) can act like both depending on the speed of applied force.
- He observed two chemical reactions, noting the reactants (baking soda + vinegar; hydrogen peroxide + potassium iodide) and the visible products (gas bubbles, fizzing foam, heat), introducing concepts of gas production and exothermic reactions.
- Elling recognized that the way materials are arranged changes their strength, seeing fragile pasta become a load‑bearing bridge and toilet‑paper rolls support weight when stacked strategically.
- He connected material properties to real‑world engineering by learning how adding a window screen to sand improves a sandcastle’s cohesion, illustrating how simple additions can reinforce structures.
Tips
Extend Elling’s curiosity with a mini‑science lab week: let him mix his own cornstarch‑water non‑Newtonian fluid and record how it behaves under slow walks versus quick jumps; set up a safe volcano using baking soda and vinegar, then compare the reaction speed and gas output with a hydrogen peroxide‑iodide experiment (under adult supervision). Next, challenge him to design a spaghetti bridge that must hold a small book, encouraging measurement, prediction, and iterative redesign. Finally, take a field trip to a sandbox or beach and have him build a sandcastle using a window screen or mesh, then discuss how the added material changes the castle’s stability.
Book Recommendations
- Ada Twist, Scientist by Andrea Beaty: A spirited young girl uses curiosity and simple experiments to solve mysteries, inspiring kids to ask questions and explore chemistry.
- What Is the World Made Of? A First Book of Science by DK: Brightly illustrated, this book introduces basic concepts like states of matter, simple reactions, and material properties for early learners.
- Rosie Revere, Engineer by Andrea Beaty: Rosie designs and rebuilds contraptions, showing how engineering design and testing turn ideas into strong, functional structures.
Learning Standards
- NGSS 5‑PS1‑2: Conduct an investigation to describe how the properties of a substance change when it is mixed with another substance (non‑Newtonian fluid, chemical reactions).
- NGSS 3‑PS2‑2: Plan and conduct an investigation to determine the effect of balanced and unbalanced forces on the motion of an object (bridge load‑test).
- NGSS 3‑ETS1‑1: Define a simple engineering problem and generate possible solutions (building stronger structures with pasta, toilet‑paper rolls, and sandcastle reinforcement).
Try This Next
- Create a non‑Newtonian fluid by mixing 2 cups of cornstarch with 1 cup of water; have Elling record observations in a science journal with drawings of solid‑like and liquid‑like behavior.
- Design a mini bridge using uncooked spaghetti and tape; test its load capacity with small weights, then chart the results and discuss how shape and arrangement affect strength.