Reaction Rate Experiments
Explore how temperature, concentration, catalysts, and surface area influence the speed of chemical reactions. These projects use safe materials and clear scientific methods suitable for classroom and science fair investigations.
Temperature & Reaction Speed
- How temperature affects the rate of a vinegar–baking soda reaction
- Hot vs. cold water and dissolving speed of sugar or salt
- Reaction rate of effervescent tablets at different temperatures
Concentration Effects
- How concentration of vinegar affects reaction speed with baking soda
- Saltwater concentration and metal corrosion rate
- Hydrogen peroxide concentration and oxygen production (safe household levels)
Catalysts
- Effect of yeast as a catalyst in hydrogen peroxide decomposition
- Potato enzymes speeding up peroxide breakdown
- Comparing natural vs. commercial catalysts
Surface Area
- Crushed vs. whole effervescent tablets and reaction speed
- Powdered vs. solid reactants in safe household reactions
- Surface area effects on rust formation
pH & Reaction Rate
- How acidity affects metal corrosion
- Reaction speed of baking soda with different acids (lemon juice, vinegar)
- pH changes and enzyme activity
Enzyme Activity
- Temperature effects on catalase activity in potatoes
- pH effects on enzyme reaction speed
- Fresh vs. cooked food enzyme activity
Gas Production Experiments
- Measuring CO₂ production in vinegar–baking soda reactions
- Yeast fermentation and gas output at different temperatures
- Safe oxygen production using household hydrogen peroxide
Safe Household Chemistry
- Reaction speed of common acids and bases
- How dish soap affects bubble formation in reactions
- Comparing reaction rates of different household cleaners (non‑hazardous)
