Multimedia Questions
Water Pollution Effect on Sea Ecology
Sea pollution is caused by a long list of contributing factors such as:Chemicals – directly via sewage, which flows into the sea, and indirectly via polluted underground water:      (Picture Credit to Queensland Go... Continue Reading
  • 2016-05-08
  • 7 Comments
  • 866 Views
  • 9 Map points
  • Technion Israel Institute of Technology
(ADHمراقبة خسارة الماء مع البول(هرمون ال
تتم مراقبة خسارة الماء مع البول بواسطة هورمون ADH (الهورمون المانع للبول-Antidiuretic Hormone ). يقوم ال ADH بزيادة الامتصاص العائد للماء في أجزاء معينة من النفرون: في الانبوبة الملتوية البعيدة وفي الانابيب الجامعة. ارتفاع تركيز هذا الهرمون يزيد من الامتصاص العائد للماء ويقلل من نسبته في البول بينما يؤدي انخفاض تركيزه الى العكس. ال ADH هو ببتيد يتكون في خلايا الهيبوثلاموس وينتقل منها ال الجز... Continue Reading
  • 2018-01-27
  • 0 Comments
  • 493 Views
  • 0 Map points
  • Albayan
The Carbon Cycle
Since the industrial revolution the amount of carbon dioxide (CO2) has steadily increased in the atmosphere, this is due to several different factors, most notably the increase in fossil fuel burning source and increased deforestation.Watch the follo... Continue Reading
  • 2015-11-30
  • 3 Comments
  • 789 Views
  • 4 Map points
  • Technion Israel Institute of Technology
Forces and Angles
link for BLOSSOMS video : https://blossoms.mit.edu/videos/lessons/forces_and_angles A vector is a quantity that has both magnitude and direction. Displacement, velocity, acceleration, and force are vectors. In situations in which vect... Continue Reading
  • 2017-05-25
  • 1 Comments
  • 729 Views
  • 1 Map points
  • Technion Israel Institute of Technology
energy
 What type of energy does the skater possess as he is moving up the track as shown in the picture above?Run the simulation below for help: Click to Run... Continue Reading
  • 2015-11-30
  • 4 Comments
  • 840 Views
  • 3 Map points
  • Technion Israel Institute of Technology
חוקי ניוטון
שני תלמידים יושבים על כיסאות זהים, ופונים זה אל מול זה. אחד התלמידים מניח את רגליו על ברכי התלמיד השני, דוחף אותו וגורם לתנועה. איזה מבין המשפטים מתאר את מה שמתרחש במהלך הדחיפה כל עוד רגליו של התלמיד הראשון נוגעות בשני.... Continue Reading
  • 2016-05-18
  • 0 Comments
  • 605 Views
  • 0 Map points
  • Technion Israel Institute of Technology
قانون نيوتن الثاني
كيف يمكن معرفة اذا الجسم يتحرك بتسارع او بتباطئ من خلال داله؟  ... Continue Reading
  • 2018-05-23
  • 0 Comments
  • 435 Views
  • 1 Map points
  • Maghar
complex numbers multiplication
 A сomplex number is represented by z=a+bi , a and b are real numbers and i is the imaginary unit ,satisfying the equation i2 = −1. For more information about complex numers link to: http://blossoms.mit.edu/videos/lessons/comple... Continue Reading
  • 2017-05-15
  • 1 Comments
  • 646 Views
  • 2 Map points
  • Technion Israel Institute of Technology
arithmetic sequence
Arithmetic Sequence In an Arithmetic Sequence the difference between one term and the next is a constant. In other words, we just add the same value each time ... infinitely. In General we could write an arithmetic sequence like ... Continue Reading
  • 2017-05-29
  • 2 Comments
  • 623 Views
  • 0 Map points
  • Technion Israel Institute of Technology
Relationship between specific heat capacity of water and the sea breeze
The amount of heat required to increase the temperature of a substance by 1 degree Celsius is quantified as heat capacity, and this value determines how well a substance retains the heat.Water has a relatively high heat capacity at 4.18 J/g*C, which ... Continue Reading
  • 2016-08-16
  • 0 Comments
  • 1455 Views
  • 1 Map points
  • Beihang University
Acids and bases in our kitchen!
One of the options to determine whether a solution is acidic or basic (alkaline) is to make a pH indicator from red cabbage.How does it work?Red cabbage contains a water-soluble pigment called “anthocyanin”. The pigment changes when it is mixed with&... Continue Reading
  • 2015-11-30
  • 5 Comments
  • 1078 Views
  • 4 Map points
  • Technion Israel Institute of Technology
Galileo thermometer
A Galileo Thermometer is a device made of a sealed glass cylinder, containing a clear liquid (water,  for example), and several floating glass bubbles, each filled with a different color liquid, and a small metal tag hanging from it.  ... Continue Reading
  • 2015-11-23
  • 4 Comments
  • 643 Views
  • 4 Map points
  • Technion Israel Institute of Technology
Fossils arround the world
What are fossils?  Fossils are traces of plants, animals, fishes, and other organisms from the remote past. Scientists have learned that rocks are stacked in layers containing fossils with the oldest fossils at the deepest layers, and the ... Continue Reading
  • 2016-04-29
  • 0 Comments
  • 787 Views
  • 3 Map points
  • Technion Israel Institute of Technology
planting trees
Why do gardeners prefer to plant trees in silty soil instead of in sandy soil?click here for using the animation.   Select the correct answer:... Continue Reading
  • 2015-12-04
  • 4 Comments
  • 740 Views
  • 4 Map points
  • Technion Israel Institute of Technology
בולענים
בולען הוא שקע הנפער בקרקע, בדרך כלל בפתאומיות. תופעת הבולענים עלתה לאחרונה לכותרות עקב היווצרות בולענים רבים באזור ים המלח. בולענים נוצרים כתוצאה מזרימת מי תהום מתחת לפני הקרקע, שגורמת להמסת שכבות גיר או שכבות מלח, הגורם להווצרות לחללים ריקים (מערות) או חללים המכילים בוץ. לאחר היווצרות החללים בכמה מקומות בשכבה שמתחת לפני הקרקע, נוצרים סדקים ההולכים ומתרחבים בשכבת פני השטח, ולבסוף קורסת השכ... Continue Reading
  • 2016-12-31
  • 4 Comments
  • 1459 Views
  • 6 Map points
  • Technion Israel Institute of Technology
שפת C
כתוב תוכנית אשר מקליטה טמפרטורות בדרגות פהרנהיית ומדפיס דרגות טמפרטורות בסילזיוס. כלול את המשוואה c=5/9*(f-32) ... Continue Reading
  • 2016-11-20
  • 1 Comments
  • 347 Views
  • 2 Map points
  • ORT Braude College of Practical Engineers
Question in C3 (Advanced)
כתוב פונקציה אשר תוגדר באופן הבא: char * func(char *s1,  char *s2) הפונקציה מקבלת כפרמטרים שתי מחרוזות אשר נקלטו בתוכנית הראשית main ונשלחו לפונקציה. הפונקציה בונה מחרוזת דינמית שמכילה את התת מחרוזת הכי ארוכה המשותפת בין שתי המחרוזות. למשל: s1 = Hello world s2=The world is nice התת מחרוזת הכי ארוכה המשותפת בין שתי המחרוזות היא: world (עם רווח לפני ואחרי). הפונקציה תחזי... Continue Reading
  • 2016-12-25
  • 0 Comments
  • 460 Views
  • 7 Map points
  • Technion Israel Institute of Technology
שאלה בשפת C
כתוב תוכנית אשר מקבלת מהמשתמש מרחק בקילומטרים ומהירות בקמ"ש ומחשבת את זמן ההגעה בדקות ובשעות אל היעד. ... Continue Reading
  • 2016-11-20
  • 1 Comments
  • 346 Views
  • 2 Map points
  • ORT Braude College of Practical Engineers
Plastic recycling
Plastic is manufactured by the polymerization process, which connects monomers to create polymers. Common types of polymers in our lives are presented in the table below: Example... Continue Reading
  • 2015-11-30
  • 2 Comments
  • 829 Views
  • 5 Map points
  • Technion Israel Institute of Technology
Sea level rise risk
Sea level is a term describing the altitude of the water at sea(Haifa) picture taken by :dina izGlobal warming due to human activity has countless examples all over the world.Global warming is basically the constant rise of the world average temperat... Continue Reading
  • 2016-05-15
  • 5 Comments
  • 1391 Views
  • 8 Map points
  • dina