Monday, May 31, 2010
Tuesday, May 11, 2010
TIPS for Form 5
TIPS for Form 4
Sample Question For Paper 3
Aim | To determine the reactivity of alkali metals with water. | ||||||||
Problem statement | How do Group 1 elements do reacts with water? | ||||||||
Variables | MV: Different types of alkali metals RV: Reactivity of alkali metals FV: size of alkali metals | ||||||||
Hypothesis | Alkali metals become more reactive in reaction with water when going down Group 1. | ||||||||
Apparatus & Materials | A: forceps, knife M: small piece of lithium, sodium, potassium, filter paper, distilled water. | ||||||||
Procedure | 1. Cut a small piece of lithium using forceps and knife. 2. Dry the oil on the surface of lithium with filter paper. 3. Place the lithium on the surface of water in a trough. 4. Record the reactivity of lithium with water. 5. Repeat steps 1 to 4 using potassium and sodium. | ||||||||
Tabulation of data |
|