Section A (30 Marks) À¢Ã¢× A (30 ÒûÇ¢¸û)

Answers all the questions. «¨ÉòÐ §¸ûÅ¢¸ÙìÌõ Å¢¨¼ÂÇ¢.

Instruction: Each question is followed by four options, A, B, C and D. Choose the correct answer. ¸ð¼¨Ç: ´ù¦Å¡Õ §¸ûÅ¢ìÌõ A,B,C ÁüÚõ D ±É ¿¡ýÌ Å¢¨¼¸û ¦¸¡Îì¸ôÀðÎûÇÐ. ºÃ¢Â¡É Å¢¨¼¨Âò §¾÷× ¦ºö.

1. Which of the following is not a microorganism?

¸£§Æ ¦¸¡Îì¸ôÀðÎûÇÅÉüÚû ±Ð ÑñÏ¢÷ ¸¢¨¼Â¡Ð?

A. Earthworm ÁñÒØ

B. Paramecium ÀçÁº¢Ôõ

C. Amoeba «§ÁÀ¡

D. Bacteria À¡ìËâ¡

2. Which of the following are the ways to prevent the spread of diseases caused by

microorganisms? À¢ýÅÕÅÉÅüÚû ÑñÏ¢÷¸Ç¡ø ²üÀÎõ §¿¡ö¸û ÀÃÅ¡Áø þÕì¸ ÅƢӨȸû

¡¨Å?

I. By washing hands before handling food ¯½×ô ¦À¡Õð¸¨Çô ÀÂýÀÎòОüÌ ÓýÒ ¨¸¸¨Çì ¸ØÅ §ÅñÎõ.

II. By covering the mouth and nose when coughing or sneezing ÐõÁø «øÄÐ þÕÁÄ¢ý §À¡Ð Å¡¨Â ãÊì ¦¸¡ûÇ §ÅñÎõ.

III. By covering up wounds ¸¡Âí¸ÙìÌì ¸ðÎô §À¡Î¾ø.

A. I and II only B. I and III only C. II and III only D. I, II and III E.

3. Which of the following shows the ways animals ensure the survival of their species?

À¢ýÅÕÅÉÅüÚû ±¨Å Å¢Äí̸û ¿£Î ¿¢ÄÅ¨Ä ¯Ú¾¢ ¦ºö¸¢ýÈÉ?

I. A frog lays many eggs. ¾Å¨Ç ¿¢¨È Ó𨼸û þθ¢ýÈÉ.

II. A kangaroo carries its young in its pouch. ¸í¸¡Õ ¾ý ÌðʨÂò ¾ÉРŢüÚô¨À¢ø ÍÁìÌõ.

III. A tiger catches a deer. ÒÄ¢ Á¡ý¸¨Çô À¢ÊìÌõ.

A. I and II only B. I and III only C. II and III only D. I, II and III

Science Diagnostic Test

Year 6 - 2014

4. The information below is related to the survival of animal species. ¸£§Æ ¦¸¡Îì¸ôÀðÎûÇò ¾¸Åø Å¢Äí̸û ¿£Î ¿¢ÄÅ¨Ä ¯Ú¾¢î¦ºöÔõ ÀüÈ¢

¦¾¡¼÷Ò ¦¸¡ñ¼Ð.

Which of the following animals is animal X? À¢ýÅÕÅÉÅüÚû ±Ð Å¢ÄíÌ X?

A. Chicken §¸¡Æ¢

B. Snake À¡õÒ

C. Lizard ÀøÄ¢

D. Crocodile Ó¾¨Ä

5. Which of the following characteristics are important to plant seeds that are dispersed

by wind? ¸£§Æ ¸¡ñÀÅüÈ¢ø ±ó¾ò ¾ý¨Á ¸¡üÈ¢ý ãÄõ ÀÃ×õ ¾¡ÅÃí¸Ç¢ý Å¢¨¾¸ÙìÌ

Ó츢Âõ?

I. Light þ§Äº¡É

II. Sweet taste ¿øÄ Õº¢ì ¦¸¡ñ¼¨Å

III. Have wings þÈ쨸 ¦¸¡ñ¼¨Å

A. I and II only B. I and III only C. II and III only D. I, II and III

Animal X does not take care of its eggs. To ensure the survival of its species, animal X lays eggs in a hidden place. Å¢ÄíÌ X ¾ÉÐ Ó¼¨¼¸¨Çô À¡Ð¸¡ì¸¡Ð. ¾ÉÐ ¿£Î ¿¢ÄÅ¨Ä ¯Ú¾¢ ¦ºöÂ

¾ÉÐ Ó𨼸¨Ç Å¢ÄíÌ X ´Ç¢ Á¨ÈÅ¡É þ¼ò¾¢ø þÎõ.

6. The diagram below shows a food chain in a vegetable garden area. ¸£§Æ ¦¸¡Îì¸ôÀðÎûÇ À¼õ ´Õ ¸¡ö¸È¢ §¾¡ð¼ò¾¢ÖûÇ ¯½× ºí¸¢Ä¢¨Âì

¸¡ðθ¢ýÈÐ.

vegetables caterpillar bird ¸¡ö¸È¢ ¸õÀÇ¢ô ÒØ ÀȨÅ

What will happen if pesticide is sprayed on the garden? âîº¢ì ¦¸¡ûÇ¢ ÁÕ󾢨Éò §¾¡ð¼ò¾¢ø ¦¾Ç¢ò¾¡ø ±ýÉ ¿¼ìÌõ?

I. The yield of the vegetables increases. ¸¡ö¸È¢¸Ç¢ý Å¢¨Çîºø «¾¢¸Ã¢ò¾ø

II. The bird will eat the vegetables. ÀȨŠ¸¡ö¸È¢¨Â ¯ñÏõ.

III. The number of birds will decrease. ÀȨÅ¢ý ±ñ½¢ì¨¸ ̨ÈÔõ

A. I and II only B. I and III only C. II and III only D. I, II and III

7. The diagram below shows a symbol of a component in an electric circuit. ¸£§Æ ¦¸¡Îì¸ôÀðÎûÇ À¼õ ´Õ Á¢ýÍüÈ¢ø ¯ûÇ À¡¸ò¾¢ý ÌȢ£¨¼

¸¡ðθ¢ýÈÐ.

What is represented by this symbol? ÌȢ£Π±¨¾ì ÌȢ츢ýÈÐ?

A. Switch Á¢ýÅ¢¨º

B. Wire Á¢ý¸õÀ¢

C. Bulb Á¢ýÌÁ¢ú

D. Dry cell ¯Ä÷ Á¢ý¸Äõ

8. The diagram below shows a food web. À¼õ ´Õ ¯½× ŨĨÂì ¸¡ðθ¢ýÈÐ.

What is the animal represented by P? P ±ýÉ Å¢ÄíÌ?

A. Grasshopper ¦ÅðÎ츢Ǣ

B. Rabbit ÓÂø

C. Frog ¾Å¨Ç

D. Fox ¿Ã¢

9. What is the change of energy involved in a radio? Å¡¦É¡Ä¢Â¢ø ²üÀÎõ ºì¾¢Â¢ý ¯ÕÁ¡üÈõ ±Ð?

A. Electrical energy → heat energy Á¢ýºì¾¢ → ¦ÅôÀºì¾¢

B. Electrical energy → sound energy Á¢ýºì¾¢ → ´Ä¢îºì¾¢

C. Electrical energy → light energy Á¢ýºì¾¢ → ´Ç¢îºì¾¢

D. Electrical energy → kinetic energy Á¢ýºì¾¢ →þÂíÌ ºì¾¢

10. Which of the following is a renewable source of energy? ¸£ú¸¡ñÀÅüÚû ±Ð ÒÐôÀ¢ì¸ þÂÖõ ºì¾¢?

A. Natural gas þÂü¨¸ ±Ã¢Å¡Ô

B. Solar ÝâÂý

C. Petroleum ¦Àð§Ã¡Ä¢Âõ

D. Coal ¿¢Äì¸Ã¢

Paddy

¦¿ø

Caterpillar ¸õÀÇ¢ô ÒØ

Snake

À¡õÒ

Rat ±Ä¢

11. Which of the following possesses kinetic energy? ¸£ú¸¡ñÀÅüÚû ±Ð þÂíÌõ ºì¾¢¨Â ÌȢ츢ýÈÐ?

I. Water flowing in a river ¬üÈ¢ø ¿£÷ µð¼õ

II. A moving fan ÍÆÖõ Å¢º¢È¢

III. Blowing of the wind Å£Íõ ¸¡üÚ

A. I and II only B. II and III only C. I and III only D. I, II and III

12. We need to use energy wisely to…

¿¡õ Òò¾¢º¡Ä¢Â¡¸ ºì¾¢¨Âô ÀÂý ÀÎò¾ §ÅñÎõ...

I. save cost. ¦ºÄÅ¢¨É ̨Èì¸

II. avoid wastage. Å¢¨ÃÂò¨¾ò ¾Å¢÷ì¸

III. reduce pollution. Á¡ÍÀ¡ð¨¼ì ̨Èì¸

A. I and II only B. I and III only C. II and III only D. I, II and III

13. Which of the following can convert kinetic energy to electrical energy?

À¢ýÅÕÅÉÅüÚû ±¾É¡ø þÂíÌõ ºì¾¢¨Â Á¢ýºì¾¢Â¡¸ ¯ÕÁ¡üÈÁ¨¼Âî ¦ºöÂ

ÓÊÔõ?

A. Dynamo Á¢ýɡ츢

B. Solar cell Ýâ Á¢ý¸Äõ

C. Dry cell Á¢ý¸Äõ

D. Accumulator Á¢ý§ºÁì¸Äõ

14. The diagram below shows a bulb. Which is the part labelled as A, B, C or D that

converts electrical energy to light and heat energies when electric current flows through the bulb? ¸£§Æ ¦¸¡Îì¸ôÀðÎûÇ À¼õ Á¢ýÌÁ¢¨Æì ¸¡ðθ¢ýÈÐ. Á¢ýÌÁ¢Æ¢ø Á¢ýº¡Ãõ

¦ºÖòÐõ§À¡Ð A,B,C ÁüÚõ D ±É «¨¼Â¡ÇÁ¢ð¼¨Å¢ø ±Ð Á¢ýºì¾¢¨Â

´Ç¢îºì¾¢Â¡¸×õ ¦ÅôÀîºì¾¢Â¡¸×õ ¯ÕÁ¡üÚ¸¢ýÈÐ?

15. The picture below shows a few types of electrical appliances. ¸£§Æ ¦¸¡Îì¸ôÀðÎûÇ À¼õ ´Õ º¢Ä Á¢ýº¡Ã ¯À¸Ã½í¸¨Çì ¸¡ðθ¢ýÈÐ.

What is the similarity between the electrical appliances shown above? §Á§Ä ¯ûÇ Á¢ýº¡Ã ¯À¸Ã½í¸Ç¢ý þ¨¼§Â ¯ûÇ ´üÚ¨Á ±ýÉ?

A. They convert electrical energy to light energy. Á¢ýºì¾¢¨Â ´Ç¢ºì¾¢Â¡¸ ¯ÕÁ¡üÚ¸¢ýÈÐ.

B. They convert electrical energy to heat energy. Á¢ýºì¾¢¨Â ¦ÅôÀºì¾¢Â¡¸ ¯ÕÁ¡üÚ¸¢ýÈÐ.

C. They convert electrical energy to kinetic energy. Á¢ýºì¾¢¨Â þÂíÌõ ºì¾¢Â¡¸ ¯ÕÁ¡üÚ¸¢ýÈÐ.

D. They convert electrical energy to light and heat energies. Á¢ýºì¾¢¨Â ´Ç¢ ÁüÚõ ¦ÅôÀî ºì¾¢Â¡¸ ¯ÕÁ¡üÚ¸¢ýÈÐ.

16. Which of following devices does not use the reflection of light?

¸£§Æ ¦¸¡Îì¸ôÀðÎûÇ º¡¾Éí¸Ç¢ø ±Ð ´Ç¢Â¢ý À¢Ã¾¢ÀÄ¢ô¨À

ÀÂýÀÎò¾Å¢ø¨Ä?

A. the side mirror of a car. Å¡¸Éò¾¢ý Àì¸Å¡ðÎì ¸ñ½¡Ê

B. the mirror at the sharp bend of a road. ŨÇó¾ À¡¨¾Â¢ø þÕìÌõ ÌÅ¢ì ¸ñ½¡Ê

C. the periscope. Á¨È§¿¡ì¸¡Ê

D. the telescope. ¦¾¡¨Ä§¿¡ì¸¢

17. Which of the following shows the similarity between evaporation and boiling?

À¢ýÅÕÅÉÅüÚû ¬Å¢Â¡¾ø ÁüÚõ ¦¸¡¾¢ò¾ÙìÌûÇ ´üÚ¨Á ¡¨Å?

A. A change of gas to liquid ÅÇ¢ÁÁ¢Ä¢ÕóÐ ¿£÷ÁÁ¡Ì¾ø

B. A change of solid to liquid ¾¢¼ô¦À¡ÕǢĢÕóÐ ¿£÷õÁ¡Ì¾ø

C. A change of liquid to gas ¿£÷ÁÁ¢Ä¢ÕóÐ ÅÇ¢ÁÁ¡Ì¾ø

D. A change of liquid to solid ¿£÷ÁÁ¢Ä¢ÕóÐ ¾¢¼ô¦À¡Õǡ̾ø

18. Adam holds a balloon as shown in the diagram below. ¸£§Æ ¦¸¡Îì¸ôÀðÎûÇ À¼ò¨¾ô §À¡ýÚ «¼õ Àæ¨Éô À¢Êò¾¡ý.

The shape of the balloon can be changed easily because the air… ÀæÉ¢ý ÅÊÅõ ÍÄÀÁ¡¸ Á¡È¢ÂÐ ¸¡Ã½õ ¸¡üÚ

A. occupies space. þ¼ò¨¾ ¿¢ÃôÒ¾ø.

B. has mass. ¦À¡Õñ¨Á ¯ñÎ

C. has no fixed shape. ¿¢Ãó¾Ã ÅÊÅÁ¢ø¨Ä

D. cannot be seen. À¡÷ì¸ ÓÊ¡Ð

19. A few cubes of ice added to a glass of orange juice. Drops of water are formed on

the outside wall of the glass as shown in the picture below. ´Õ º¢Ä ÀÉ¢ì¸ðʸû ¬ÃïÍ º¡È¢Ûø §ºÃ÷ì¸ôÀð¼É. ÀÉ¢ì¸ðʸû ¿¢ÃôÀôÀð¼

¸ñ½¡Ê ÌŨÇ¢ý ¦ÅÇ¢§Â ¿£÷òÐÇ¢¸û §¾¡ýÚ¸¢ýÈÉ.

What is the taste of the drop of water formed? ¿£÷ ÐÇ¢¸Ç¢ý ͨŠ±ýÉ?

A. Sweet þÉ¢ìÌõ

B. Sour ÒÇ¢ìÌõ

C. Salty ¸Ã¢ìÌõ

D. Tasteless ͨÅ¢ý¨Á

Drop of water

¿£÷òÐÇ¢¸û

Ice cubes ÀÉ¢ì¸ðÊ

Orange juice ¬ÃïÍ º¡Ú

20. What happens when water is heated until it boiled? ¾ñ½£¨Ã ¦¸¡¾¢ìÌõ Ũà ¦ÅôÀÁ¡ì¸¢É¡ø ±ýÉ ¿¢¸Øõ?

A. The water becomes water vapour. ¾ñ½£÷ ¿£Ã¡Å¢Â¡¸ Á¡Úõ.

B. The water vapour becomes gas. ¿£Ã¡Å¢ ÅÇ¢ÁÁ¡¸ Á¡Úõ.

C. The water becomes lighter. ¾ñ½£÷ þÄÌÅ¡Ìõ.

D. The volume of the water becomes increases. ¾ñ½£Ã¢ý ¦¸¡ûÇÇ× «¾¢¸Ã¢ìÌõ.

21. Which of the following processes are involved in the formation of clouds and rain?

¸£§Æ ¦¸¡Îì¸ôÀðÎûǨÅ¢ø ±ó¾ ¦ºÂøÓ¨È §Á¸õ ÁüÚõ Á¨Æ

¯ÕÅ¡ìÌž¢ø ºõÀó¾ôÀð¼¨Å?

I. Freezing ¯¨È¾ø

II. Evaporation ¬Å¢Â¡¾ø

III. Condensation ¿£Ã¡Å¢ ÌÚì¸õ

A. I and II only B. I and III only C. II and III only D. I, II and III

22. The table below shows the observations to indicate the properties of liquids X, Y and Z with the use of litmus paper. ¸£§Æ ¯ûÇ «ð¼Å¨½ X,Y ÁüÚõ Z ¾¢ÃÅ¢Âí¸û Ä¢ðÓŠ ¾¡Ç¢¨É ÀÂýÀÎò¾¢

¸ñ¼È¢ó¾ ¯üÈÈ¢¾¨Äì ¸¡ðθ¢ýÈÐ.

Liquid ¾¢ÃÅ¢Âõ

Observation ¯üÈÈ¢¾ø

X Changes the colour of red litmus paper into blue º¢ÅôÒ Ä¢ðÓŠ ¾¡û ¿£Äò¾¢üÌ Á¡È¢ÂÐ

Y

No change on the blue and red litmus paper ¿£Äõ ÁüÚõ º¢ÅôÒ Ä¢ðÓŠ ¾¡Ç¢ø

±ó¾ ´Õ Á¡üÈÓõ þø¨Ä

Z

Changes the colour of blue litmus paper into red ¿£Ä ¿¢È Ä¢ðÓŠ ¾¡Ç¢ý ¿¢Èõ

º¢ÅôÀ¢üÌ Á¡È¢ÂÐ

What is the conclusion can be drawn from this test?

þó¾ô ÀÈ¢§º¡¾¨½Â¢ý ÓÊ× ±ýÉ?

X Y Z

A Neutral

¿Î¾ý¨Á Alkali

¸¡Ãò¾ý¨Á Acid

¸¡Êò¾ý¨Á

B Acid

¸¡Êò¾ý¨Á

Neutral ¿Î¾ý¨Á

Alkali ¸¡Ãò¾ý¨Á

C Alkali

¸¡Ãò¾ý¨Á Neutral

¿Î¾ý¨Á Acid

¸¡Êò¾ý¨Á

D Neutral

¿Î¾ý¨Á Acid

¸¡Êò¾ý¨Á Alkali

¸¡Ãò¾ý¨Á

23. The pupils below take different types of drinks. ¸£§Æ ¯ûÇ Á¡½Å÷¸û ¦Åù§ÅÚ À¡½í¸¨Ç «Õóи¢ýÈÉ÷.

Who is having an acidic drink? ¡÷ ¸¡Êò¾ý¨Áìì ¦¸¡ñ¼ À¡½ò¨¾ «ÕóÐÅÐ?

A. Raju ფ

B. Sobri ¦º¡ôâ

C. Ali «Ä¢

D. Murali ÓÃÇ¢

24. What is the use of constellations? Å¢ñÁ£ý ÌØÁò¾¢ý ÀÂý ±ýÉ?

A. To indicate time §¿Ãò¨¾ì ¸¡ð¼

B. To indicate direction ¾¢¨º¨Âì ¸¡ð¼

C. To study orbits of planets ¸¢Ã¸í¸Ç¢ý ÍüÚ À¡¨¾¸¨Çô ÀüÈ¢ ÀÊì¸

D. To form patterns ÅÊÅí¸¨Ç ¯ÕÅ¡ì¸

Raju drinks coffee. ფ ¸¡ôÀ¢ «Õóи¢È¡ý.

Sobri drinks syrup. ¦º¡ôâ º£Ã¡ô «Õóи¢È¡ý

Ali drinks pineapple juice. «Ä¢ «ýÉ¡º¢ ÀÆîº¡Ú «Õóи¢È¡ý

Murali drinks chocolate. ÓÃÇ¢ º¡ì§Äð «Õóи¢È¡ý.

25. Which of the following constellations points to the south? ¸£§Æ ¦¸¡Îì¸ôÀðÎûÇ Å¢ñÁ£ý ÌØÁò¾¢ý ±Ð ¦¾üÌ ¾¢¨º¨Âì ¸¡ðÎõ?

A. Southern Cross ¦¾ýº¢Ö¨Å

B. Big Dipper À¼Ì

C. Orion §Å¼ý

D. Scorpion §¾û

26. The following information is related to the rotation of the Earth. ¦¸¡Îì¸ôÀðÎûÇ ¾¸Åø âÁ¢Â¢ý ÍÆüº¢ ÀüÈ¢ ¦¾¡¼÷Ò¨¼ÂÐ.

Which of the following are the effects due to the movement of the Earth? À¢ýÅÕÅÉÅüÚû ±Ð âÁ¢Â¢ý ¿¸÷¢ý Å¢¨Ç× ¬Ìõ?

I. Day and night. À¸ø ÁüÚõ þÃ×

II. The length of the shadow on the Earth changes âÁ¢Â¢ø ¿¢ÆÄ¢ý ¿£Çõ Á¡Úõ

III. The position of the shadow on the Earth changes. âÁ¢Â¢ø ¿¢ÆÄ¢ý ¿¢¨Ä Á¡Úõ.

A. I and II only B. I and III only C. II and III only D. I, II and III E.

27. The diagram below shows a phase of the Moon. ¸£§Æ ¦¸¡Îì¸ôÀðÎûÇ À¼õ ¿¢ÄÅ¢ý ¸¨Ä¸¨Çì ¸¡ðθ¢ýÈÐ.

What is the phase of the Moon at this time? þó¾ º¨ÁÂò¾¢ø ¿¢ÄÅ¢ý ¸¨Ä ±ýÉ?

A. New moon

«Á¡Å¨º

B. Crescent À¢¨È

C. Full moon ¦Àª÷½Á¢

D. Half moon «¨Ã ¿¢Ä¡

The Earth completes one rotation every 24 hours. âÁ¢ ¾ý¨Éò ¾¡§É ÓبÁ¡¸î ÍüÈ¢ì ¦¸¡ûÇ 24 Á½¢ §¿Ãõ

À¢ÊìÌõ.

The Earth rotates on its axis from west to east. âÁ¢ ¾ý «îº¢ø §Áü¸¢Ä¢ÕóÐ ¸¢Æ측¸î ÍÆø¸¢ÈÐ.

28. What is the lunar phase that can be seen on 14th and 15th according to lunar

calendar? ¿õ ¿¡û¸¡ðÊ¢ý ÀÊ 14 ÁüÚõ 15 ÅÐ ¿¡Ç¢ø ¿¢ÄÅ¢ý ¸¨Ä ±ýÉ?

A. New moon «Á¡Å¨º

B. Crescent À¢¨È

C. Full moon ¦Àª÷½Á¢

D. Half moon «¨Ã ¿¢Ä¡

29. Which of the following is less stable?

À¢ýÅÕÅÉÅüÚû ±Ð ¨Èó¾ ¿¢¨Äò¾ý¨ÁÔ¨¼ÂÐ?

30. The picture below shows a structure.

¸£§Æ ¦¸¡Îì¸ôÀÎûÇ À¼õ ´Õ ¸ð¼¨Áô¨Àì ¸¡ðθ¢ýÈÐ.

Which of the following buildings has the same shape as the structure shown above? ¦¾¡¼÷óÐ ÅÕõ ¸ðʼí¸Ç¢ø ±Ð §Á§Ä ¯ûÇ ¸ð¼¨ÁôÀ¢ý ÅÊÅò¨¾ô §À¡ýÚ

«¨ÁóÐûÇÐ?

A. C. B. D.

A B

C D

Section B (20 Marks)

À¢Ã¢× B (20 ÒûÇ¢¸û)

Answers all the questions. «¨ÉòÐì §¸ûÅ¢¸ÙìÌõ Å¢¨¼ÂÇ¢.

Instruction: Write your answers in the spaces provided. ¸ð¼¨Ç: ¦¸¡Îì¸ôÀðÎûÇ þ¼ò¾¢ø Å¢¨¼ÂÇ¢.

1. The table below shows the changes in temperature readings of water in a glass

beaker for 10 minutes. ¸£§Æ ¯ûÇ «ð¼Å¨½ 10 ¿¢Á¢¼í¸ÙìÌ ´Õ Ó¸¨Å¢ø ±Îì¸ôÀð¼ ¾ñ½£Ã¢ý

¦ÅôÀ¿¢¨Ä¢ý «ÇÅ¢ý Á¡üÈò¨¾ì ¸¡ðθ¢ýÈÐ.

Time (Minutes) §¿Ãõ (¿¢Á¢¼õ)

0 2 4 6 8 10

¾ñ½£Ã¢ý ¦ÅôÀ¿¢¨Ä )

24 29 34 39 36 33

(a) State the changes of the temperature of the water shown in the table above.

§Áü¸ñ¼ «ð¼Å¨½Â¢ø ¦ÅôÀ¿¢¨Ä¢ý Á¡üÈò¨¾ì ÜÈ×õ.

___________________________________________________________________ [1 mark]

(b) Why does the temperature of the water increase from 0 minute to the 6th minute? ²ý 0 ¿¢Á¢¼ò¾¢Ä¢ÕóÐ 6 ¿¢Á¢¼õ Ũà ¾ñ½£Ã¢ý ¦ÅôÀ¿¢¨Ä Á¡È¢ÂÐ?

___________________________________________________________________ [1 mark] (c) What can you say about the decrease of the temperature of the water after the 6th minute?

¿£í¸û ¾ñ½£Ã¢ý ¦ÅôÀ¿¢¨Ä 6-ÅÐ ¿¢Á¢¼ò¾¢ø ̨È󾨾ô ÀüÈ¢ ±ýÉ ÜÈ

ÓÊÔõ?

___________________________________________________________________ [1 mark] (d) State the conclusion that can you make from the results of the experiment. À⧺¡¾¨½Â¢ý ÓÊÅ¢ý «ÊôÀ¨¼Â¢ø ¯í¸Ç¢ý ÓʨŠÜÚ¸.

___________________________________________________________________ ___________________________________________________________________

[1 mark]

2. The diagram below shows two types of constellations, X and Y. ¸£§Æ ¯ûÇ À¼õ X ÁüÚõ Y ±É þÃñΠŨ¸ Å¢ñÁ£ý ÌØÁò¨¾ì

¸¡ðθ¢ýÈÐ.

(a) Name the constellations. Å¢ñÁ£ý ÌØÁí¸¨Çô ¦ÀÂâθ.

X: ________________________________________________________________ Y: ________________________________________________________________ [1 mark]

(b) State the patterns that are represented by these constellations. Å¢ñÁ£ý ÌØÁí¸Ç¢ý ÅÊÅí¸¨Çì ÜÚ¸.

. X: ________________________________________________________________ Y: ________________________________________________________________ [1 mark]

(c) State the directions that are shown by the constellations. Å¢ñÁ£ý ÌØÁí¸Ç¢ý ÐÕÅí¸¨Äì ÜÚ¸.

X: ________________________________________________________________ Y: ________________________________________________________________ [2 marks]

3. The diagram below shows an investigation to study the formation of shadows.

¸£§Æ ¯ûÇ Å¨ÃôÀ¼õ ¿¢Æø¸û ¯ÕÅ¡ìÌõ À⧺¡¾¨½¨Âì ¸¡ðθ¢ýÈÐ.

2.00 p.m. 4.00 p.m. 6.00 p.m.

(a) What is the aim for this investigation? þôÀ⧺¡¾¨½Â¢ý §¿¡ì¸õ ±ýÉ?

___________________________________________________________ [1 mark]

(b) What must be kept the same throughout the investigation? þôÀ⧺¡¾¨½Â¢ø ±¨¾ ¿¡õ ¸ðÎôÀÎò¾ §ÅñÎõ?

____________________________________________________________ [1 mark]

(c) Write two observations based on the investigation. þôÀ⧺¡¾¨½Â¢ø ¯üÈÈ¢ó¾ þÃñʨ½ ±Øи.

1. ___________________________________________

2. ___________________________________________ [2 marks]

West §ÁüÌ

East ¸¢ÆìÌ

4. Vishailiny observed the changes in the appearance of the Moon for a month. She

made her observation at night, starting from the beginning of the month. The results

of her investigation are shown in the following figure.

Å¢º¡Ä¢É¢ ¿¢ÄÅ¢ø ²üÀð¼ Á¡üÈí¸¨Ç ´Õ Á¡¾ì ¸¡Äõ ¯üÈÈ¢ó¾¡û. Á¡¾ Ó¾ø

¿¡û Ó¾ø «Åû þÃÅ¢ø ¾ÉÐ À⧺¡¾¨½¨Âò ¦¾¡¼í¸¢É¡û.

þôÀ⧺¡¾¨½Â¢ý ÓÊ× ¸£§Æ ¯ûÇ À¼ò¾¢ø ¸¡ð¼ôÀðÎûÇÐ.

a. What is the aim of this investigation?

þôÀ⧺¡¾¨½Â¢ý §¿¡ì¸õ ±ýÉ?

(1 mark)

b. State what is changed?

±Ð ¾üº¡üÒ Á¡Ã¢ ±Éì ÜÚ¸?

(1 mark)

c. Name the phase of the Moon on 14th day.

14-ÅÐ ¿¡Ç¢ø ¿¢ÄÅ¢ý ¸¨Ä¢ý ¦ÀÂâθ.

(1 mark)

d. Name the phase of the Moon on 26th day.

26-ÅÐ ¿¡Ç¢ø ¿¢ÄÅ¢ý ¸¨Ä¢ý ¦ÀÂâθ.

(1 mark)

5. A group of pupils built three models of structure as shown in the diagram below.

¸£§Æ ¯ûÇ À¼ò¾¢ø ¸¡ð¼ôÀðÎûÇÐ §À¡ø Á¡½Å÷¸û ¾ÉÐ ÌØÅ¢ø ãýÚ

Á¡¾¢Ã¢¸¨Ç «¨Áò¾É÷.

Model Á¡¾¢Ã¢

The number of books that can be supported

¾¡í¸¢Â Òò¾¸í¸Ç¢ý ±ñ½¢ì¨¸

J 3

K 8

L 6

(a) What is the aim of this investigation? þôÀ⧺¡¾¨½Â¢ý §¿¡ì¸õ ±ýÉ?

___________________________________________________________ ___________________________________________________________ [1 mark]

(b) State the following: ¦¸¡Îì¸ôÀðÎûǨŨÂì ÜÚ¸:

i. Things to change (¾üº¡üÒ Á¡È¢):

__________________________________________ ii. Things to observe(º¡÷Ò Á¡È¢):

___________________________________________ [2 marks]

(d) What is the relationship between the thing to change and the things to be observed? ¾üº¡üÒ Á¡È¢ìÌõ º¡ÚÒ Á¡È¢ìÌõ ¯ûÇ ¦¾¡¼÷Ò ±ýÉ?

____________________________________________________________ [1 mark]