The Egyptian British international school Year 3 Science department Term 2. Final practice pack. Name:. Class:..

Transcription

1 Final practice pack Name:. Class:.. 1

2 Question 1: Materials have different properties. Here are six different materials. 1- Materials Cotton- metal- stone- rubber-fabrics-paper Name one property for each material. Cotton... absorbent... Metal...strong... Stone...rough... Rubber...waterproof... Fabrics soft-warm. Paper flexible Give one use for each material Cotton Use towels Metal Use gates Stone Use houses Rubber Use car tires Fabrics Use clothes Paper Use books 2

3 Question 2: 3

4 a- Shiny and dull b- Circle objects made out of metal. Copper coin and golden necklace c- Which material is soft? wool d- Which material is natural? copper, gold, wood and wool 4

5 Question 3: Draw a line to match : 5

6 Question 4: a) Circle three objects made from flexible material. Aluminium foil- copper wire- sandpaper b) Which object is made from a rough material? sandpaper c) Which object is an electric conductor? copper wire. d) Which object is an insulator? wooden spoon.. 6

7 Question 5 : Circle man-made objects: 7

8 Question 6: Circle the correct property of the material used to make these objects: Object Material properties pencil Wood flexible light magnetic balloon Rubber elastic hard rough paperclip Steel soft elastic magnetic tissue Paper smooth waterproof hard t-shirt Fabrics warm waterproof rough saucepan Metal conductor absorbent soft window Glass transparent opaque absorbent 8

9 Question 7: It attracts to the magnet. 9

10 Question 8: (a) (b) Draw a bar graph to show the information string P string Q string R string S 10

11 Question 9: Material Q because it is more absorbent. 11

12 Question 10 : (a) The following is a description of material A I am flexible and waterproof. When you hit me with a hammer, I will not break. What material am I? Which of the following is most likely to be material A? a- Steel b- Glass c- Cotton d- Rubber By magnet. Because steel is magnetic and will attract to the magnet. 12

13 Question 11: Each of four children examined a different type of paper towel. 13

14 (a)what question were the children investigating? which towel is the most absorbent?. (b) What is the one variable they changed during their investigation? types of towels. (c) Which towel absorbed the biggest amount of water? soaka. (d) They draw a bar graph to show the information. Using a ruler, complete the bar graph for them wipa soaka moppa cleana 14

15 Question 12: Because it is transparent and waterproof. 15

16 Because plastic is a poor conductor of heat and will burn. 16

17 Question 1: a- Complete the table. 2- Teeth and healthy eating Food Food group Oranges Fruits and vegetables Vegetable salad Fruits and vegetables. Eggs meat, fish and chicken Bread grains(carbohydrates) milk dairy products. Rice grains(carbohydrates ). fish meat, fish and chicken Chocolate fats and sugar. 17

18 Question 2: a- canines molars premolars incisors b-write true or false 1- Humans have 3 sets of teeth in their life. False.. 2- Children have 32 milk teeth. False. c-mohab makes a poster. Complete the poster below. Write TWO other ways that people can look after their teeth. TOOTHPASTE Brush your teeth with toothpaste twice a day. (1)... Visit the dentist regularly (2)... (3)... Eat less sugar. 18

19 Question 3: (a) Denise and Joe collect information from four adults. The table shows what they find out. Adult Exercises regularly Eats a balanced diet Smokes regularly Cleans teeth regularly A B C D Which TWO adults are most likely to have healthy hearts? Write A, B, C, or D....B... and.....c (b) Which of these could lead to a greater chance of heart disease? Tick TWO boxes. regular exercise Smoking eating lots of fatty foods not washing regularly eating lots of fruit and vegetables (C) What is the function of the heart? pump blood... (D) Give some advices to have a healthy heart. Eat less fats- exercise regularly 19

20 Question 4: (a) Most human babies are born without teeth. Why do babies not need teeth?...because they only drink milk (b) How many sets of teeth do humans grow during their lives?...only two sets... (c) Canines, molars and incisors have different jobs. Draw THREE lines below to match each type of tooth to its main job in humans. canine bites and cuts food molar chews and grinds food incisor rips and tears food (d) Label the main type of tooth Jon uses to bite the apple. (e) Jon visits the dentist regularly to help stop tooth decay. incisor Describe ONE other way Jon can help stop tooth decay....brush his teeth regularly... 20

21 Question 5: A) This is an animal skull. Look at its teeth. Do you think it s a a- Dog b- Sheep B) How can its teeth help it in eating food? It has sharp teeth to hunt its food C) Complete the table. animal Food they eat type 1- deer 2- cat Grass and leaves Fish and beef herbivore.. carnivore 3- monkey Insects and fruits omnivore 4- chicken wheat and corn Herbivore 21

22 Question 6: Four children record how often they brush their teeth. Name Before breakfast After breakfast Before tea Before bed Mike Ian Lucy Molly Look at the table. (a) Which child is likely to have the healthiest teeth?...ian (b) Why does brushing help to reduce tooth decay?...because it removes plaque... (c) Which of the following would help most in reducing tooth decay? Tick ONE box. drink more orange juice eat less sugar eat less fat eat more vegetables 22

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