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Science Olympiads > Forensics > Flashcards

Forensics Flashcards

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Biology 101 flashcards
1
Q

Solvent vs solute

A

Solute dissolved into solvent (liquid)

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2
Q

Rf

A

Distance traveled by pigment/distance traveled by spot

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3
Q

Balanced chemical reaction between Calcium Carbonate and Hydrochloric

A

CaCO3+2HCL – CaCl2+CO2+H2O

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4
Q

Hair is primarily

A

Keratin

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5
Q

Average ridges on finger of human adult

A

150

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6
Q

Rf

A

Retention Factor

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7
Q

Cause of fingerprint ridge patterns

A

Amount / location of calmer pads in thick skin

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8
Q

Uses of Calcium Nitrate

A

Any combo: fertilizer, ice melt, glass manufacture, meat preservation, reagent, catalyst in rubber production, pyrotechnic

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9
Q

Full name for polymer LDPE

A

Low Density Polyethylene

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10
Q

LDPE chemical structure

A

See review ws

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11
Q

Two uses for LDPE

A

Any combo: addition, bread bags, frozen food bags, grocery bags

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12
Q

Chemical basis for Iodine fuming (Ninhydrin)

A

Iodine reacts with oils/ fats, Ninhydrin reacts with amino acid

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13
Q

Chemical basis for dusting SPR

A

Fatty acids/ lipid reaction

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14
Q

Full name of polymer PP

A

Polypropylene

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15
Q

Uses of PP

A

Addition, dishwasher safe containers, yogurt containers, margarine tubs, medicine bottles, bottle tops

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16
Q

DNA

A

Deoxyribonucleic Acid

17
Q

Uses of Lithium Chloride

A

Bipolar disorder medicine, antidepressant, brazing flux for aluminum on automobile parts

18
Q

1st insect to contact dead body

A

Blow flies

19
Q

Diatomic element

A

Elements made up of diatomic molecules with only the atom of that element

20
Q

Diatomic elements

A

Hydrogen, nitrogen, oxygen, fluorine, chlorine, bromine, iodine

21
Q

4 nucleotides of DNA

A

Adenine
Thymine
Guanine
Cytosine

22
Q

Names for chemical powder in NaHCO3

A

Sodium bicarbonate, sodium hydrogen carbonate

23
Q

Full name of polymer PVC

A

Polyvinylchloride

24
Q

Chromatography

A

Separation of mixtures into constituents

-Rf

Science Olympiads (4 decks)

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