GREENHILL ACADEMY P.4 SCIENCE FORTNIGHT ASSESSMENT (SET IV) TERM I, APRIL 2023. NAME:_______________________________________________STREAM:_________ SECTION A 1. Name any one material used to keep the environment clean. _________________________________________________________ 2. How is a cobweb important to a spider? _________________________________________________________ 3. State the function of root hairs to plants. ________________________________________________________ 4. How is rain water useful at home? ________________________________________________________ 5. Name any one process involved in the water cycle. __________________________________________________________________ 6. Write any one PIASCY message. _______________________________________________________________________________________________________________ 7. Name any one main body division of an insect. _________________________________________________________ 8. How is a latrine useful at school? _________________________________________________________ 9. State one way waters gets contaminated. _________________________________________________________ _________________________________________________________ SECTION B 10. (a) State the use of the following weather instruments. (i) Anemometer ____________________________________________________ (ii) Wind vane _____________________________________________________ (b) Why should a rain gauge be placed in an open place? __________________________________________________________________ (c) In which units is rainfall measured? __________________________________________________________________ 11. (a) Give one reason for grouping monkeys under pests. _____________________________________________________________ (b) State two ways you can identify crops damaged by pests. (i) ___________________________________________________________ (ii) ___________________________________________________________ (c) How does crop rotation control pests? ____________________________________________________________ 12. (a) How is AIDS dangerous to people? _____________________________________________________________ (b) Give two ways of caring for AIDS patients. (i) _____________________________________________________________ (ii) _____________________________________________________________ (c) State one way pupils can protect themselves from HIV/AIDS. ______________________________________________________________ 13. Match the following tools their function correctly. (i) Panga - for weeding (ii) Hoe - for cutting small trees. (iii) Axe - for turning manure (iv) Garden fork - for butting big trees. (i) Panga ________________________________________ (ii) Hoe ________________________________________ (iii) Axe ________________________________________ (iv) Garden fork ________________________________________