Students will learn the mechanisms and reactions involved in one type of clock reaction and understand how a clock reaction may provide insight into reaction kinetics. After assembling, performing, and obtaining data from several clock reactions students will alter experimental conditions and investigate the effects on clock reaction data. Determination of the effects of concentration and temperature on chemical kinetics will be investigated. Kit contains enough materials for 15 groups. Teacher’s Manual and Student Study Guide copymasters are included.
Aligned to the Next Generation Science Standards (NGSS)*
Disciplinary Core Ideas: PS1.A; PS1.B
Performance Expectations: HS-PS1-5; HS-PS1-6
Cross Cutting Concepts: Patterns; Stability and Change
3 X 100mL Ascorbic Acid, 1.7%
3 X 100mL IKI Dilute Lugol’s Solution
2 X 200mL Hydrogen Peroxide, 3%
1 X 3g Starch, Soluble
30 Plastic Cups
30 Stir Sticks
60 Measuring Cups, Disposable
60 Pipettes, Disposable
*”Next Generation Science Standards” is a registered trademark of Achieve. Neither Achieve nor the lead states and partners that developed the Next Generation Science Standards was involved in the production of, and does not endorse, this product.