INTEGRATED SCIENCE 6

SCIENCE 

1. State the difference between the alternating and direct current. 
b.The power rating of an electrical appliance at 750watt,calculate consumed for using the appliance for 1 hour
C. Write the chemical formulae for the following compound 
I. Potassium III oxosulphate Iv Acid. 
II. Trioxonitrate V acid 
III. Sulpher VI oxide

C. Explain the following terms used in soil management 
I. Soil resources 
II. Soil conservation

d.define musical note 
II. Start the characteristics of sound and the difference instrument used in playing the note

e Name 4 organ in human body that excrete waste

II Name one waste excreted by the organ above.

2a What is weathering of rock

2ii. State 2 physical process that occur during weathering 
b calculate the 3 difference between food chain and food web 
II. Construct the Food chain using the following organizations : grass, human,lizzard,locust,goat and Lion.

C. Differenciate between acidic salt and normal salt.

3.Name the four components of a complete flower 
II. What is the part mention above is the productivity of flower.

b.Organize the following component of spectrum in order :wavelength, red light, blue light, X-ray, microwave 
II. Start one uses of the following 
I. X-ray 
II. Microwave

4.what is ionic bonding 
II. Name the type of bond in each of the following 
I. Calcim oxide 
II. Copper (V) acid 
III. Methane 
IV.methanol
b.state 2 functions of the following plant nutrients 
I. Nitrogen 
II. Photosynthesis

5.Differenciate between staking and pruning in crop production

II. Name 3 crops that undertakes staking during crop cultivation

b.Differenciate between voluntary and involuntary action.

II. What are the functions of the following human eye 
I. Pupil 
II. Length 
III. Rectina

C. Write the general molucular formulae of the following organisms 
I. Alkyne 
II. Alkane 
III. Alkanoe
III. What is meant by up thrust