AGRICULTURAL SCIENCE SPECIMENS & QUESTIONS
[/u]A= Organic manure
B= Inorganic manure
C= Sandy soil
D= Clay soil
F= Source of heat/Bursen Burner
G= Weighing Balance
L= Watering can
N= Groundnut seeds
O= Maize seeds
P= Guinea corn seeds
R= Lantern/Huricane lamp
S= Chicken egg
U= A chart showing a pig/Hand drawing of a pig.
QUESTION AND ANSWER
(specimen A-organic manure) USES
3.farm yard manure
(SP B INORGANIC MANURE) are synthesised artificially USES:
5.calcium ammonium nitrate
ADVANTAGES ND BENEFIT OF A
1.supplies nutrient to crops
2. increases soil fertility
3.binds soil particles 2gedar
4. Amproves soil structure
5.increases the yield of crops
6.acts as a buffer in the soil.
METHODS OF APPLYING A.
Padcasting,spraying,side dressing,band methods…
EXPERIMENT TO FIND THE PERCENTAGE OF HUMUS CONTENT IN THE SOIL.
Mass of crucible=xg mass of cruable +drysoil=yg mass of drysoil=y-x=A(g),mass of drysoil alterlating=z-x=B (g),mass of humus=A-B% of humus=A-B/A X100….
EXPERIMENT TO FIND THE % OF SOIL WATER.
METHOD= lnitial mass of the soil is recorded and heated in a crucible the mass is recorded after heating n d the mar7 of water is recorded. Mass of crucible=X (g),mass of cruable + fresh soil=Y-X=A(g),mass of crucible+heated soil=Z (g),mass of dried soil=Z-X=B (g),mass of water=(A-B)(g)
(SPECIMEN H-CUTLASS) LIST
eight uses, (SEpCIMEN I- HOE)list 5 uses (SPECIMEN J)list 5 uses (SPECMEN K)list 5 uses (SPECIMEN L)list 3 uses
(SPECIMEN M)list 5 uses (MAINTANANCE OF H,I,J,K,L& N)
1. Clean &dry after use
2.straighten bent blade
3.rub the metal with oil
4.avoid rough handling
5.keep in cool dry place
(SPECIMEN N- GROUNDNUT)botanical name=ARACHIS HYPOGEA,varieties
4.samuru 38,soil requirement=1.sandy,loamy nd highly acidic to neutra.. PROPAGATION=seed,PEST=aphid,rodent,weevil, CONTROL
1.spray with insecticide
2.settin of traps 3.early harvest
4.seed rot (fungus) (SPECIMEN O)botanical name=ZEA..varieties=deut maize,sweet,corn
2012 WAEC PHYSICS PRACTICAL
Question 1 => retort stand with clamp;spring balance; two beakers,500cm cube
a) containing water and labelled water
b) containing keroseneand labelled liquid L;set of masses 50g,100g,150g,200g,250g;thread about 1m.
Question 2 => retort stand with clamp;flat bottom plastic petri- dish;syringe about(0-10cmcube). Remove the needle. Pull up the plunger. Use flame from a match stick to melt and seal the tip of the syringe to ensure that it is air tight; use appropriate (plastic to plastic) adhesive to fix the bottom of the petri-dish symmetrically to the top of the plunger; set of masses 500g,1000g,2000gand 2500g.
Note: Masses may be improvised with fine dry sand.
Question 3 => potentiometer (0-100cm) ammeter(0-3A) volmeter(0-5V) 2ohms standard resistor labelled R; two dry cells each 1.5v or 2v freshly charged accumulator;plugkey;eight connecting wires.