Exploring Life - Honors Biology Chapter 4 Chemical Basis of Life
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You might want to actually write your answers in Word (so you can spell
check them) and then cut-and-paste into the boxes. That way, if the computer
misplaces your work you can just re-paste the answers.
Since we may work on this over more than one day, I will keep track of what
you have done. Feel free to click submit as you work to save your work to the
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Answer the questions as best you can. The boxes will expand as you type if you need more space.
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group in the box. The ideal group size is 2. As an exception I will allow groups
of 3. No groups of 4 or 5. If you work as a group of 3 I expect better answers.
Group sizes above 3 will be penalized in the grading.
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Open the Explore Life CD in a separate window. (If you need help
with that ask.)
While there are questions on the CD, they provide answers, so I can't grade
their questions. You will get a grade for the answers on this form!
Click on Chapter 4
-At any time you can refer back to the text via the menu on the side-
Start with Concept 4.1 The questions proceed with the disk. Do all the
activities. Answer my questions.
Question 1: What is the difference between an element, a
compound, a molecule and a mixture? Don't just copy the glossary definitions.
How many protons, neutrons and electrons are in Oxygen, Sodium, Chlorine?
Question 3: Strontium has an atomic number of 38 and a mass of
88. How many protons, neutrons and electrons in the non-radioactive form of
Strontium? Radioactive Strontium has a mass of 90. How many protons, neutrons
and electrons in it?
How many electrons are in the outer shell of Sodium? How many are in the outer
shell of Chlorine? Describe the bond between sodium and chlorine in salt.
5. How many electrons are in a covalent bond? How many are in a double
covalent bond? (Think about hand shakes. How many hands are in a hand shake?)
6 List and explain the 4 main properties of water. What common feature
explains all of these special properties?
7. What is a buffer?
If you have time you can go back through the CD for anything else you want to
read more about.