Science Year 6 Assessment
This assessment consists of 50 questions. Please answer all the questions. Recommended duration: 60 minutes

Checked & Edited by: Ms Kah Yee
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1. Gita and Jess are carrying-out some science investigations. They are checking their understanding of REVERSIBLE reactions. Gita takes an ice lolly out of the freezer and leaves it on the kitchen table. Which change takes place? *
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2. Gita breaks an egg into a bowl and whisks it with a fork. Which of this best describes a beaten egg? *
3. The students know that heating some solids results in non-reversible reactions. Which THREE of these are made by non-reversible reactions? *
Required
4. Jess puts the charcoal on the bar-be-que. Charcoal is a material made by a non-reversible reaction. Which material is irreversibly changed to produce charcoal? *
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5. What is the name for solid water? *
6. What is the process that happens to solids when they are heated and changed to liquids? *
7. What term is used for the process when liquid cools down and forms a solid?
Clear selection
8. What term is used to describe what happens when a gas cooling into a liquid? *
9. What word is used to describe what happens to a solid that mixes with a liquid, like water, and seems to ‘disappear’? *
10. What term describes how the sand is recovered from the water when they are mixed together? *
11. What happens when some sugar is stirred into water? *
12. You notice that an old nail holding your gate post together has a browny-looking substance on its surface. What do you think that is? *
13. When a solid dissolves in water, what is this new mixture called? *
14. Lance and Peter have been discussing which materials dissolve in water. Which of these materials will dissolve in water? Tick two boxes. *
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15. Which of the following substances, when mixed with water would make a solution? Tick the substances that would make a solution. *
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16. Which of the following does not affect the rate of dissolving? *
17. Evie and Charlotte had a mixture of pebbles, sand and salt - what would be their best choice for separating the pebbles from the sand and salt? *
18. Which one of the following changes is NOT reversible? *
19. If you shake some salt and sand together you will have made a ______.
Clear selection
20. What happens to the oil when you stir it into water? *
21. What happens to the soil when you stir it into water? *
22. Why do cyclists hunch down low over the handlebars to go faster?
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Clear selection
23. What do we call something that is shaped to have as little air resistance as possible? *
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24. What source of force is air resistance? *
25. When an object is falling which direction does air resistance act in? *
26. Which of these is an example of friction being useful? *
27. When the area of surfaces rubbing together is small, the friction is_____ . *
28. Air produces which kind of friction? *
29. Zeta and Vanya are investigating how surface area affects air resistance. They drop pieces of paper and measure the time taken to reach the ground.Which THREE variables (factors) must they keep the same? *
Required
30. TWO of these will REDUCE water resistance. Which are they? *
Required
31. Gravity is an important force that attracts all objects on our planet, but where does it attract them to? *
32. When the apple and the bowling ball are dropped together, _________. *
33. On the Moon the force of gravity is about 1/6 of what it is on Earth, so everything weighs less. Why do you think this is so? *
34. Can you put the stages of the life cycle of a butterfly in the correct order? Make sure your stages start at 'birth' and finish at 'adult'. *
35. Places on Earth which have extreme temperatures and very little or no water available to plant life are called ___________ . *
36. Which of the following is not waterproof? *
37. Divers often need to write things down when they are underwater. They use a special pencil to do this, but what material from the list do you think would make the best waterproof 'paper'? *
38. Which of these materials would be best for a saucepan handle to stop you burning your fingers? *
39. When we want heat to travel quickly and easily from one place to another, we make objects using which materials? *
40. Select two options below that are true about mixtures. *
Required
41. Identify a mixture among the following: *
42. Which of these methods would separate sand and water? *
43. Marble is a type of rock. It is used as a building material in many parts of the world. Marble forms when limestone is changed by high temperature and pressure. What type of rock is marble? *
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44. Siltstone forms from silt. Silt is a fine sediment with grains that are smaller than sand. Siltstone forms when layers of silt are pressed together to form rock. It often shows silt grains arranged in thin layers. What type of rock is siltstone? *
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45. Gabbro is a type of rock. When melted rock cools below the earth’s surface, it can form gabbro. Large parts of the ocean floor are made of gabbro. What type of rock is gabbro? *
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46. A day is a measure of how long it takes the Earth to... *
47. The sun rises in the East and sets in the West because the Earth spins... *
48. The biggest part of our solar system is… *
49. The different bright shapes of the moon we see on earth are called moon... *
50. How do we measure distances between stars? *
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