MATERIALS (OT2)

• science
• Secondary Education

OT-2

MATERIALS

UNIT 3 STAGE 4

UNIT 3 (SUBUNITS 3.1 & 3.2) STAGE 5

SOLIDS

LIQUIDS

GASES

Ashok stored iron nails in a jar of kerosene. How does kerosene keep the nails free of rust?

1. Kerosene prevents contact of the nails with oxygen and moisture.
2. Moisture reacts with the kerosene before it reaches the nails.
3. Moisture reacts with the kerosene before it reaches the nails.
4. Kerosene cleans the rust off the nails as it forms.