Science Past Paper PDF

# 16 A car is driving along a road. Complete the sentences about the car. Use words from the list: - air resistance - friction - chemical - elastic - gravity - kinetic The car is slowing down. The forces that slow the car down are **friction** and **air resistance**. # 2 (a) The boxes show some pa...

# 16 A car is driving along a road. Complete the sentences about the car. Use words from the list: - air resistance - friction - chemical - elastic - gravity - kinetic The car is slowing down. The forces that slow the car down are **friction** and **air resistance**. # 2 (a) The boxes show some parts of plants and the function of the parts. Draw a line from each part to match its function: - **flower**: _photosynthesis_ - **leaf**: _absorption of water_ - **root**: _transport of water and minerals_ - **stem**: _reproduction_ (b) Complete the word equation for photosynthesis: carbon dioxide + water --> glucose + oxygen # 11 The alimentary canal consists of many different organs. Look at the diagram of the alimentary canal. - part A: _food pipe_ - diaphragm - stomach - small intestine - large intestine (a) What is the name of part A? _Food pipe_ (b) The stomach is not labelled on the diagram. Draw a label line on the diagram to show the stomach. (c) Draw lines to match the organ with its function: | Organ | Function | | ------------- | -------------------------------------------------- | | Large intestine | Food is mixed up into a creamy liquid | | Small intestine | Digests proteins, carbohydrates and fats and absorbs water, amino acids, sugars and fatty acids | | stomach | Food is chewed into smaller pieces | # 3 Complete each explanation using these words: - force - pressure - area (a) People who walk across snow may wear snowshoes. The person does not sink into the snow because the **force** acts on a larger **area**, so that the **pressure** is less. (b) A sharp knife cuts through cheese more easily than a blunt knife. The edge of the sharp knife has a smaller **area**, so the **force** acting on the knife produces a larger **pressure**. # 13 10 Poor diets can cause health problems. (a) Draw a line between the diet and the health problem. One has been done for you. - **too much sugar - heart disease** - too much fat - tooth decay - too much salt - high blood pressure - too little protein - little energy - too little carbohydrate - poor growth (b) Chen and Mike look at information about the amount of fat and fibre in different fruits: | Fruit | Fat in grams | Fibre in grams | | ---------- | ------------- | --------------- | | Apricot | 0.1 | 1.2 | | Banana | 0.1 | 3.1 | | Kiwi fruit | 0.0 | 2.6 | | Orange | 0.1 | 2.4 | | Pineapple | 0.1 | 13.8 | | Strawberry | 0.0 | 0.6 | (i) Name the two fruits with the highest amount of fibre: - **Pineapple** and **Banana** (ii) Why is fibre important in the diet? Fibre is important because it reduces constipation.