TRUE OR FALSE: Directions: In a separate sheet of paper, write TRUE if the statement is correct. If the
statement is faulty, write FALSE.
1. Enzymes are biological catalysts that are usually sensitive to heat, so they are denatured with the use
of heating to avoid food spoilage.
2. Storage of food at high temperatures prolongs the shelf life of many foods.
3. The rate of decomposition of food and other food products are slowed down by the addition of catalysts.
4. Vitamin E is a natural antioxidant which is present in citrus fruits and vegetables.
5. A warm environment speeds up the rate of chemical reaction, thus spoiling food faster.
6. Chemical catalysts are substances that slow down reaction rates.
7. The thin layer that forms on the surface of a metal prevents oxygen from coming into contact with more
of the metal atoms and so, this "protects the remaining metal from further corrosion.
8. Water should be used to put out electrical fires.
9. Carbon dioxide fire extinguishers are used for fires involving flammable liquid and electrical
equipment.
10. Bigger pieces of charcoal have bigger total surface area which will burn faster to produce more heat.​