The process by which water changes tovapour is called..... A. Photosynthesis B. Evaporation C. Transpiration 2. The process whereby water vapour changes back to water is called.... A. Condensation B. Melting C.Evaporation 3. When water vapour loses heat it changesinto liquid water. A. True B. False 4. When liquid water is heated, it ....... A. changes into watervapour. B. changes into ice C. None of the above 5. What happens when ice is heated? A.It turns into water B. It stays the same C. It turns into solid 6. Which organ of the digestive system is responsible for absorbing nutrients into the blood? A. Stomach B. small intestine C. Large intestine 7. Why should we turn off electrical appliances When not in use? A. To make them last longer B. To save electricity and reduce waste. C. To make the house darker. 8. What happens if all plants in an ecosystem die? A. herbivores will have no food and may die. B.Carnivores will start eating plant C. nothing will change in the ecosystem. 9. The function of the stomach in digestion is to.. A. Chew the food B. Absorb water from food C. Break down food using acid and enzymes. 10. Which appliances use electricity? A. A broom B. A fan C. A spoon 11. Which of these is an example of condensation? A. Ice melting B. Water droplet forming on a cold glass C. water boiling into steam 12.What does a bulb do in a circuit? A.Produces heat B. Produces heat C. Store electricity 13.What do herbivores eat in ecosystem? A.Plant B. Other animals C.Both pants and animals 14. What is the function of battery in an electric circuit AIt stores water B.It supplies electrical energy C.It creates light 15. Why is the large intestine important in the digestive system? A.It stores food for later digestion B.It Absorbs water and forms waste C.It produces enzymes to digest proteins 16. Why is the sun considered the center of the solar system. A.Beacuse it is the biggest planet B.Beacuse all planets revolve around it. C.Beacuse it gives light to the moon 17.What process happens When water changes into steam. A.Evaporation B.Freezing C.Melting 18. which materia is good couductor of electricity? A.Wood B. Plastic C. Copper 19 How does chewing food properly help in digestion? A.It makes food more flavorfua B.It helps the stomach digest food faster C.It allows food to be swallowed whole 20 . What is the role of saliva in digestion? A.It makes food taste better B. It contains enzymes that start breaking down food C.It prootect the teeth from bacteria 21.Why does chocolate melt in the sun? A.Beacuse of cold air B.Because heat makes solid turn into liquids C. Beacuse it absorbs water 22.What happens when switch is off. A. Electricity flows B.The circuit is broken, and no electricity flows. C.The bulb shine bighter 23.Which of the following helps to conserve electricity? A. Leaving light on all day. B.Using energy-saving bulbs C.Keeping the TVon When not in use 24. Which electronic component controls the flow of electricity? A.Swicth B.Wire C.Bulb 25. what is thefunction of the the small intestine. A .Absorb nutrients B. Store food C.produce enzymes 26.Which of these gadget does not require electricity A. Blender B. Solar lamp C. Television8 A .Ecosystem. B. Habitat C. Hood 28. Which of the following is the habitat of fishes? A.water B. Air C. Land 29. The interaction between living and non- living things at a particular place and time creates is...... A.Community B. habitat C.Ecosystem 30. The electric iron uses ..... A. Oil to work B. water to work C. Electricity