0 . End of First Term Examination SCIENCE –YEAR 4 PAPER 1 MARCH 2024 1 Hour CANDIDATE NAME: CANDIDATES NUMBER: DATE: READ THESE INSTRUCTIONS FIRST Write your name, candidate number in the space at the top of the page. Do NOT use correction fluid. Answer all questions. You should pay attention to your handwriting. The number of marks is given in brackets [ ] at the end of each question. Suggestions for how long to spend on each section are given in the booklet. The total number of marks for this paper is 50. 1 1. Closely observe the diagram and answer the questions that follow. a. Why can’t Lois Lois cannot see the flame. Complete the statements that follow. a. She cannot see the flame because [2] ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ b. This experiment shows that light travels in a ____________________ line. [1] Lois Circle one Circle two Circle three 2 c. She can now see the flame because [2] ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ 2. Carefully observe the diagram and answer the questions below a. What is this huge sea wave called? [1] ___________________________________________________________ ___________________________________________________________ b. What causes it to happen? [1] ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ c. State 2 types of damages that will happen to the coastal town. [2] 3 ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ d. Which part of the world has the most earthquakes? [1] ___________________________________________________________ 3. Davis puts butter into a pan. He then heats the butter on a stove. Answer the questions that follows. a. In what state is the butter when he puts it in the pan? [1] _________________________________________________________ b. In what state will the butter be after heating? [1] _________________________________________________________ c. What is this change of state called? [1] _________________________________________________________ 4 d. Fill in this summary of the change of state: Butter _____________ (state) heat [2] butter ___________ (state) 4. Read the text about skeletons and answer questions about what you have read. Our skeleton supports our body. It makes a strong frame inside the body. It gives our body shape and makes it firm. Our skeleton also protects organs inside the body. We grow and get bigger because our skeleton grows. We begin to grow at birth. Our bones get longer and thicker each year. When we are about 18 to 20 years old, our bones stop growing. Sometimes we fall or have accidents and break our bones. A broken bone is called a fracture. Doctors take special photos called X-rays to see if a bone is broken or not. The broken ends of the bone slowly grow back together again. a. State three reasons why a skeleton is important. [3] _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ b. Explain what would happen to a baby if its skeleton did not grow. [3] _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ c. What is a fracture? [2] _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ 5 d. How can doctors find out if a bond is broken? [2] _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ e. How do broken bones mend? [1] _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ f. Why do you think some animals with skeletons are very big, but animals like worms are usually small? [2] _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ 5. Complete the sentences below with the most appropriate word. Select from the list of words give. Richter scale, Seismometer, focus, epicenter, crater, vent a. The instrument used to measure the intensity of an earthquake is ______________________________ [1] b. The instrument used to measure the magnitude of an earthquake is ______________________________ [1] c. The point on the Earth's surface directly above the earthquake's origin is the _________________________ [1] d. The point where the earthquake waves originate is the______________________________ [1] 6 6. Observe the diagram below and answer the questions that follow. a. What will happen to the light ray when it reaches the surface of the mirror? [1] _________________________________________________________ _________________________________________________________ _________________________________________________________ b. Describe the surface of the mirror. Choose from this list: dull, shinny, bumpy, smooth. [1] _________________________________________________________ _________________________________________________________ _________________________________________________________ c. What name is do we give to the reflection of the flame in the mirror? [1] _________________________________________________________ _________________________________________________________ d. Why can’t we see the reflection of the flame in a piece of wood? [1] _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ 7. Josh has just completed a 20km run. He is very hot and sweaty. The first thing he does when he gets home is turn on the electric fan. Josh moves the fan and touches some bare connecting wire where the plastic insulation has worn away. 7 a. What will happen to Josh? [1] _________________________________________________________ _________________________________________________________ _________________________________________________________ b. List two factors that caused this to happen. [2] _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ 8. Choose words from the provided list to complete the following sentences. You will not use all the words and you will use some words twice. [3] Solids, liquids, shake, shape, tightly, loosely, spread, move, particles 8 All substances are made up of ________________. ________________ have fixed ________________ due to ________________ packed ________________ which ________________ in a fixed position. ________________ can ________________ and take on the ________________ of their container. 9. Esther heats water in a pan. Complete the sentences. a. The heat is transferred from the heat source to the________________ and the_______________. [2] b. Energy cannot be made, lost, used up or________________________ [3] 10. The model of the structure of the Earth has three parts. Madam Renita asked Joy to draw a line to match each part to its correct description. Let’s help her complete her task. [3] 9
