The document contains several multiple choice questions about science topics related to fertilization, heat as a form of energy, hazardous materials classification, combustion, waste incineration, and waste segregation. The questions cover easy, average, difficult, and clincher levels of difficulty and provide the question, multiple choice answers, correct answer, and in some cases a reference source.

1. MantiguibES
Easy
Fertilizationtakesplace whenaspermcell andan egg cell unite toforma new life.Whatisa
fertilizedeggcalled?
A. embryo B. zygote C. fetus D. newborn
Answer:B.
Science forDailyUse 5, ActivityBook,p.9
Easy
MantiguibES
There are factorsaffectingchangesinmaterials.Whatformof energyaffectsthese changesin
materials?
A. State of Matter B. Composition C. precipitate D. Heat
Answer:D.Heat
Reference:LPinScience andHealth5,p. 53, 55
Average
MantiguibES
Hazardousmaterialsare groupedintofour.Inwhat groupdo materialslabeledwithSkull and
Crossbonesbelong?
A. Corrosives B. Poisonous C. Explosives D. Flammable
Answer:BPoisonous
Reference:LPinScience andHealth5,p.17
Average
MantiguibES
Oxygentake animportantpart of the atmosphere.Itsupportsburning.Whatisthe process
called?
A. Oxygenation B. Decomposition C. Combustion D. Rusting
Answer:C.Combustion
Reference:LPinScience andHealth5,p.45

2. Difficult
MantiguibES
Waste materialsshouldbe mange properly.Whatkindof machine producesheatandenergyto
burn pilesof garbage around?
Answer:Incinerator
Reference:LPinScience andHealth5,p.72
Clincher
MantiguibES
“ Nobodywantsto live ina worldfull of waste.”
Garbage collected should be segregatedin_________________________?
Answer:MaterialsRecoveryFacility(MRF)
Reference:LPinScience andHealth5,p.68