Say Cheese!!! Rennin is an enzyme originated from the forth stomach of ruminant animals like cows and goats. Its substrate is the milk protein, Casein. It can also be produced by some microorganisms by genetic engineering techniques. In milk, it denaturates the ca... Continue Reading
الطفرات الطفرة:
في علم الأحياء هي أي تغير يحدث في المعلومات الجينية - المعلومات الوراثية الحيوية المشفرة في تسلسلات حمض نووي ريبوزي منقوص الأكسجين، والكروموسومات التي تحوي DNA، أو في تسلسلات حمض نووي ري... Continue Reading
Photoelectric effect Photovoltaic
is an applied technology for the utility of solar energy, which covers the conversion
of light into electricity using metal materials that exhibit the photoelectric effect.
The
photoelectric effect is a phenomenon that ... Continue Reading
Tropical storm formation Picture taken from http://earthobservatory.nasa.gov/IOTD/view.php?id=87314Each year several tropical storms hit Florida, USA, causing damage and sometimes even deaths and injuries.A tropical storm forms when sea water temperature is 26 degrees or hig... Continue Reading
Backgammon Game Consider throwing a coin multiple times. Even huge amount of times. Let's discuss - what would be the number of times you would get a particular side out of the total number of throws?
Let's see that in any occasion of throwing a symmetri... Continue Reading
משפחה של פונקציות סינוס באיור הדינמי, ראה קישור מוצגת משפחת פונקציות
עברו אלו ערכים של פרמטר a הפונקציה מהמשפחה הנ"ל היא פונקציה עולה בקטע
?
... Continue Reading
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
The ideal gas equation The simple gas laws describe the relationships involving the pressure, volume, temperature, and amount of an ideal gas.
Boyle’s law states that for a fixed amount of gas at a constant temperature, the gas volume is inversely proport... Continue Reading
Polymers in our lives - Expanded Polystyrene
Ninth grade students have got
a project task about polymers, their importance in our everyday life and impact
on the environment.
One group has chosen to
concentrate on the Expanded Polystyrene (EPS) or by its trademarked br... Continue Reading
About the ocean acidification phenomenon The term 'Climate Change' is a big topic these days. It refers to several related phenomena such as higher temperatures noticed, more droughts, changing rain and snow patterns, melting glaciers, rising sea level and increased ocean acidity.
The ocea... Continue Reading
ריבוי המדוזות בחופי ארץ ישראל
כפי שראינו בסרטון, לשינויי הטמפרטורה והזיהום יש השפעה ישירה ועקיפה על אוכלוסיות המדוזות, הדגים וצבי הים. לדוגמא: הורדת הזיהום תגדיל את כמות הצבים, דבר שיגרור ירידה בכמות המדוזות, בשל היות הצבים טורפי מדוזות.
שאל... Continue Reading
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
מצביעים בשפת C כתוב פונקציה המקבלת מערך ואת גודלו ושלושה מצביעים :
X1,X2,X3
את הערך לאיבר הקטן ביותר במערך "X1" הפונקציה מציבה ב .
X2ואת הערך לאיבר הגדטל במערך מציבה ב
את הערך הממוצע של המערך X3וב
... Continue Reading
שפה C,פונקסיה רקורסיבית כתוב תוכנת שמקבלת מערך דו מימדי בגודל 5X5 מהמשתמש,המערך נשלח לפונקסיה רקורסיבית שמסכמת את סכום האלכסון ומדפסה אותו ב-main..
... Continue Reading
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
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
Multimedia Questions
Inquiry Questions
