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با عرض سلام
من محمود دره زرشكی دبیر علوم تجربی ناحیه 2 استان یزد هستم وبه شما خوش آمد می گویم . این وبلاگ جهت یادگیری آسان علوم دوره راهنمایی طراحی شده و شامل مطالب علمی و خلاصه درسها و نمونه سوالات مختلف می باشد. امیدوارم برای همه ی كاربران گرامی مفید واقع شود. منتظر انتقادات و پیشنهادات سازنده تان هستیم .

مدیر وبلاگ : محمود دره زرشكی
نظرسنجی
كیفیت مطالب و عملكرد این وبلاگ را چگونه ارزیابی می كنید ؟








چهارشنبه 28 اردیبهشت 1390 :: نویسنده : محمود دره زرشكی

دانش آموزان عزیز پایه دوم در این قسمت تعدادی سؤال علوم از صفحه 74 به بعد آورده شده است .با پاسخ دادن به آنها خود را امتحان كنید .                           

                جهت مشاهده سؤالات اینجا كلیك كنید

 آزمون میان ترم علوم دوم راهنمایی  بارم 20 نمره     وقت 60 دقیقه      

  1- طرز تشکیل نفت خام را شرح دهید.(5/0)

 

2- کاربردهای زغال سنگ را بیان کنید.(چهار مورد) (5/0)

 

3- سرم خون لخته شده چه تفاوتی با پلاسمای خون لخته نشده دارد؟(5/0)

 

4- الف) دلایل استفاده‌ی بعضی از کانیها به عنوان جواهر چیست؟(1)

 

ب) سنگی كه براثر سیمان بندی شدن بوجود می‌آید را نام ببرید.(25/ 0 )   

  سنگ آذرین درونی با رنگی تیره نام ببرید.(25/0)

5- کلمات زیر را تعریف کنید.( 5/1)

الف) هوازدگی شیمیایی:

ب) بافت:

ج) آنزیم:

د) پلاسما:

و) لنف:

ه )تنفس:

6- الف)چرا افراد سیگاری سرفه می‌کنند؟(5/0)

 

ب)مرغوبیت سنگ دگرگونی به چه عواملی بستگی دارد؟(5/0)

7-  چرا تنفس از راه بینی بهتر از راه دهان است؟(5/0)

 

8- هوایی که تنفس می‌کنیم ممکن است سرد، خشک وپر از گردوغبار باشد.این هوا چگونه وقتی به کیسه‌های هوایی می رسد،گرم و مرطوب وتصفیه شده گردیده است؟توضیح دهید.(5/0)

 

 

9- هوای دم و بازدم چه تفاوتی دارد؟(5/0)

 

ب) سلول گیاهی با سلول جانوری چه تفاوتی دارد؟(دو مورد) (5/0)

10- مولکول اکسیژن (O2) ومولکول کربن دی اکسید (CO2) است.به نظر شما کربن(C) از کجا به اکسیژن اضافه شده است؟(5/0)

 

 

11- چرا به کبد بر خلاف بقیه‌ی اندامها دو رگ وارد شده است؟(5/0)

 

 

 

12- نقش گردش کوچک و گردش بزرگ خون را توضیح دهید.(5/0)

 

 

13- الف) چرا دیواره‌ی بطن‌ها قطورتر از دهلیزهاست؟(5/0)

 

ب) چرادیواره بطن چپ قطورتر از بطن راست است؟(5/0)

 

14- علت ناتوانی بدن در برابر ویروس ایدز چیست؟(5/0)

 

15-الف) کسی که گروه خونی A دارد از چه گروه‌هایی می‌تواند خون بگیرد؟(5/0)ب) به چه گرو‌هایی می‌تواند خون بدهد؟(5/0)

 

16- چرا باید از هر زخمی که در پوست ایجاد می‌شود ،به خوبی مراقبت کرد؟(5/0)

 

17- فرض کنید در معرض ابتلا به یک بیماری میکروبی بوده اید ولی به آن مبتلا نشده اید.چه دلیلی برای بیمار نشدن خود می‌توانید بیاورید؟(5/0) 

 

18- درباره‌ی خون به سوالات زیر پاسخ دهید.( 5/1) الف) چند درصد خون را سلول‌های آن تشکیل می‌دهند؟

ب) پروتئین قرمز رنگ خون چه نام دارد؟                                                         ج) کدام ویتامین در انعقاد خون نقش دارد؟

د) کدام ماده‌ی معدنی در انعقاد خون نقش دارد؟                                 و) کدام سلول خونی بیشترین عمر را دارد؟

19- می‌دانید که خون در انتقال چند ماده در بدن نقش دارد. دو مورد از کارهای انتقالی خون را فقط نام ببرید.(5/0)

 

20- چرا آب ومواد معدنی ویتامین‌ها در بدن گوارش پیدا نمی‌کنند؟(5/0)

 

21- فایده‌ی خوردن میوه و سبزی چیست؟(5/0)

 

22- فایده‌ی ویتامین‌ها برای بدن چیست؟(5/0)

 

23- دو جای بدن را که در آن عمل تبادل صورت می‌گیرد نام ببرید و یکی را به دلخواه توضیح دهید.(1)

24- ویژگی آنزیم ها را بیان کنید.(دو مورد)(5/0)

 

وظایف هریک از موارد زیر را بنویسید.(5/1 نمره)

الف) کبد (یک مورد):

ب) پرزهای روده (یک مورد):

ج)نقش غذا در بدن(دو مورد):

 





نوع مطلب : آموزش علوم دوم راهنمایی، 
برچسب ها :
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