SCIENCE REASONING TASKS

TASK II SCIENCE REASONING TASKS Print your full name. La Chat

TASK II SCIENCE REASONING TASK Teachers Name 200__

CASE ASSESSMENT II In this assessment you will be given:- -some answers and -a chance to have a second try. Do NOT cross out or change any of your answers. If you make any change it will be automatically marked wrong. Do not go on to the next question until you are told to. You must not use correction fluid (Tipex). Use a pen to write your answers. (Non erasable)

VOLUME AND HEAVINESS 1. A X A has more …….. less …….. the same …… amount of water. compared with X.

2.2. DCBA 1000 Do these cylinders all have the same amount of water? Yes …….. No ……… If you answer “NO” write down which has the most …………. (A/B/C/D)

3.a) The pop-corns have less ….. more ….. the same …. amount of corn compared with the un-pop-corns

3.b) The pop-corns weigh more ….. less ….. the same ….. compared with the un-pop-corns.

4. What is the volume of this plasticine block, in cubic centimeters? 12 5

Correct Answer 60

What volume of water will spill over when the plasticine is all under water? …… You can ignore the volume of the string 5.

You will see that water spills over when the block is lowered to A A B C 6.

7. What will the new volume reading be? 500 The level of water in the cylinder is 500 cm 3 If I lower the plasticine into the water until it is just under the surface

8. If the plasticine is rolled into a ball, will the level be the same ….. higher …. lower..? than the volume in question 7.

9. If the plasticine is rolled into a cylinder, will the level be the same ….. higher …. lower..? than the volume in question 7.

Look at the metal block and plasticine block You can see that they are the same sizes compare their weights. While you do that I will fill the cylinder to the top. 10. Comparing plasticine and metal

10 will more …. less …. the same ….. amount of water spill over? Full If I lower the metal into the water until it is just under the surface Why?

11. a) Will this flat piece float/sink? b) Will this small flat piece float/sink? c) Will this tiny piece float/sink?

10 20 This box, full of dry-cleaning fluid weighs 1500 grams Another box (twice as tall), filled with water weighs 2000 grams Would the box with the dry- cleaning fluid float/sink in water? 12a The boxes are very light and you can forget about their weight How did you work out your answer? Do Not simply say that it is heavier or lighter. Use the words Volume and weight in your answer.

10 This box is emptied and filled with alcohol it weighs 850 grams Would the box float/sink in water? 12b The boxes are very light and you can forget about their weight How did you work out your answer? Do Not simply say that it is heavier or lighter.

A new crown was made for a King. But he suspected that it was not made of pure gold as the goldsmith put some copper metal into the crown. He may have done this to steal some of the gold but keep the grown same weight as the gold the King had given to the goldsmith.

13a) How do you think Archimeds measured the old and new crowns’ volumes, using a measuring cylinder? You must describe how he used the measuring cylinder.

Archimedes then weighed the two crowns and found that the new bigger crown weighed more than the old one. Nevertheless he said that the new crown had some lighter metal in it. How do you think he worked it out?

Both blocks are made of the same metal brass. A weighs 60 grams, and its volume is 15 cm 3 B weighs 160 grams. What is its volume? ……. cm3 Use maths to work out your answer. Show your working.

The End Thank you for being so good. Enjoy your Science at La Chataigneraie