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1 ST. FRANCIS SECONDARY SCHOOL HALF-YEARLY EXAMINATION FORM 1 SCIENCE TIME: 1.5 HOURS Name: Class: Read instructions carefully and answer ALL questions in the spaces provided using Black/Blue ink. Do not scribble on the exam paper. Work in pencil will be considered as rough work. Please fill in your Name and Class in BOTH of the spaces provided on this first page Name: Class: Question Number Total Mark Mark Obtained Remark : Page 1 of 17
2 Page 2 of 17
3 1. This question is about different apparatus used in science. a) Fill in the names of the lab equipment shown in the space given below. A: B: C: D: (4 marks) Page 3 of 17
4 b) Match the correct equipment and write the name of the apparatus down, next to the use mentioned in the table below. Tongs, tripod, test-tube rack, weighing balance, bunsen burner, pipette, test-tube brush Apparatus Name Used for Used to pick up or hold hot objects Used for cleaning the inside of a test tube A device used to measure the mass of an object or substance. Used for transferring a small amount (drops) of liquid Used for holding one or more test tubes Used to heat objects A piece of three-legged equipment used as a platform to hold and support glassware usually whilst heating objects (7 marks) (Total: 11 marks) Page 4 of 17
5 2. Cassie has a feather, a small rock, a small piece of metal and a glass bead. She wants to find out if they have different volumes. a) Write a method showing how Cassie can find out the different volumes of each irregularly shaped object mentioned above. Your method should include all the apparatus needed. Method: (4 marks) b. In the space given below, draw a labelled diagram showing the set-up of the apparatus that Cassie needs to use to find out the volume of the irregularly shaped objects. (3 marks) Page 5 of 17
6 c) List three precautions that Cassie has to take during this experiment (3 marks) (Total: 10 marks) 3. This question is about food chains and food webs. a) Fill-in the empty spaces using the correct word. All living organisms (plants and animals) must eat some type of food for survival. Plants make their own food through a process called. Using the energy from the, water and from the atmosphere and nutrients, they chemically make their own food. Since they make or produce their own food they are called. Organisms which do not create their own food must eat either plants or animals. They are called. Some animals get their energy from eating plants while other animals get energy indirectly from plants by eating other animals that already ate the plants. Animals that eat only plants are called. Animals that eat both plants and other animals are called. Animals that eat only other animals are called. Some animals eat only dead or decaying materials and are called decomposers. (8 marks) Page 6 of 17
7 b) Look at this food chain. lettuce greenfly ladybird thrush cat i. What does the arrow in a food chain mean? ii. Name the producer in the food chain iii. Name the third trophic level in the food chain. iv. Name the tertiary consumer in the food chain. (4 marks) c) Look at this food web. Then answer the questions. fox heron perch frog small fish slug newt land plants insect diving beetle water fleas tiny water plants i. Write a food chain from this food web. Page 7 of 17
8 ii. Name the animals that the small fish eats. iii. Name the animals that eat the small fish. iv. Explain what could happen to the community if all the frogs suddenly died. (4 marks) (Total: 16 marks) 4. This question is about animal adaptations to their environment. a) Name an animal for each example below. Name one adaptation of body covering or body part that helps the animal to survive in its environment. (8) Animal Adaptation Lives in water Lives in cold, icy climate (tundra) Builds its nest in a tree Feeds on grasses In a population of insects, there were two colour variations: green and brown. One dry summer, all of the grass where the insects lived dried up Page 8 of 17
9 and died. What do you think happened to the insects? Be sure to explain what happened to the green insects and the brown insects. (3 marks) (Total: 11 marks) 5. This question is about States of Matter For the following phrases state what change of state is taking place from the list below (5) Evaporation Melting Condensation Freezing SITUATION Clothes drying on the roof CHANGE OF STATE Mirror fogging in a bathroom after a hot shower Puddles vanishing in the yard Formation of ice-cubes in the freezer Olaf snowman left in the sun Droplets forming on a bottle of water taken out from a freezer Ice cream left in the sun Water collecting in the dehumidifier or air-conditioning bucket Formation of clouds Steam coming out from a kettle heated on the oven hob Page 9 of 17
10 a. Miriam sets up a test to find out if water evaporates faster inside the classroom or outside in the yard. She puts water in two containers as shown below. Water Inside the classroom Water outside in the yard i. Name one thing that Miriam needs to do to have a fair test. (1) ii. Below are the results Miriam obtained. Inside the class Outside the yard Time taken for all water to evaporate/ hours 7.5 hrs 5 hrs Where does the water evaporate fastest? Explain why. (2) iii. Miriam repeats the experiment the next day using the same amount of water, the same cups and putting them in the same places. Page 10 of 17
11 However this time the water outside evaporates faster. Give one possible reason why this happens. (1) iv. List the apparatus Miriam would need to make a fair experiment. (2) (TOTAL 11 marks) 6. This question is about solids, liquids and gases During our stay at Mandy s house I had a shower and rushed downstairs for breakfast. Her mother prepared a glass of cool orange juice. Mandy took some cereal with milk in a bowl. Before eating her food Mandy made sure that the dog Pippa had plenty of water in her red bowl and some dried food in her blue bowl. a. From the text write down two examples of liquids. (1) b. Underline the solids in the following list. (3) Metal water paper wood Rock helium plastic lemonade Hydrogen cotton air c. Give two examples of gases. (1) Page 11 of 17
12 d. In a syringe there is a mystery substance. I try to squeeze it but I am not able to do so. What could be inside the syringe? Underline the answer/s. (1) - Solid ice - Lemonade - Air e. Megan s teacher said that gases spread out to completely fill up any container. Do you think she is right? (1) i) Below there are two containers. Show how 7 of these gas particles behave. (2) ii) Do you think that the particles of a solid and a liquid also spread out to fill up any container? Write yes or no as an answer. (1) Solids: Liquid: (TOTAL 10 marks) Page 12 of 17
13 7. This question is about using the Bunsen Burner Martha decided to show her brother Jason how to light up the Bunsen Burner and use it to heat 40ml of water to 75 o C. Can you help her by putting the steps in order by placing a number from 1 to 6 near each of the statements below? (3) Statement Number Open the gas tap Close the airhole Tie your hair, wear your safety spectacles and clear the bench from any papers or flammable materials. Turn the airhole to have a blue flame Put the beaker with the water and the thermometer on the tripod Stay at arm s length from the Bunsen burner and keep your face off the fire. Use a spark from the flicker light a. What measuring apparatus would Jason need to do this experiment? (2) (TOTAL 5 marks) 8. This question is about safety in the lab and hazard symbols. The laboratory is a different room from the classroom or the art room. Mention two safety rules that must be practiced by everyone in the lab. (2) Page 13 of 17
14 a. This glue is used by Thomas the carpenter to fix some of the furniture. It carries two hazard symbols. Explain what the hazard symbols mean. (2) b. What part of the fire triangle is removed in these situations: (2) Cutting down trees from a forest to limit a forest fire. Spraying foam on a burning plane. (TOTAL 6 marks) 9. This question is about Living things. a) All animals are living things. Which three things do all animals do? Tick ( ) three boxes. (3) Lay eggs Walk Get rid of waste Grow See Fly Feed Talk Swim Page 14 of 17
15 b) All animals are split into two large groups. These groups are the VERTEBRATES and the INVERTEBRATES. i. What animal characteristic decides whether it is a vertebrate or an invertebrate? (1) ii. Vertebrate animals are then divided into 5 main groups. These groups are FISH, AMPHIBIANS, REPTILES, BIRDS and MAMMALS. To sort animals into these groups, they use the following characteristics. Have dry scaly skin. Covered in scales. Have feathers and wings. Covered in hair or fur. Feed young using mammary glands. Need water to breed. Lay eggs with leathery shells. Have fins and gills. Have beaks and no teeth. Breathe through moist skin and lungs. Look at the list of characteristics above. There are two characteristics for each vertebrate group. Write them down in the correct boxes. In each box, also write down the name of two animals that belong to that group. (10) Group Amphibians Reptiles Characteristics Animals Page 15 of 17
16 Group Birds Mammals Characteristics Animals Group Fish Characteristics Animals (Total: 14 marks) 10. This question is about energy Energy is found everywhere around us. Write down why the objects mentioned below need energy: (5) Object: Why energy is needed: Car Kettle Radio Heater Television Page 16 of 17
17 ii. Energy can be from one form to another. (1) (Total: 6marks) THE END Go back and check your work Page 17 of 17
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